Initial prototype of multi-platform version

.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+local.properties
+.idea
+.DS_Store
+build
+captures
+.externalNativeBuild
+node_modules

android/build.gradle

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+buildscript {
+    ext.kotlin_version = '1.3.11'
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.3.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        maven {
+            url "$rootDir/../react-native/node_modules/react-native/android"
+        }
+    }
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "org.isoron.habits"
+        minSdkVersion 21
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation files("../core/build/libs/core-jvm.jar")
+    implementation "com.facebook.react:react-native:0.57.8"
+    implementation project(':react-native-svg')
+
+    testImplementation 'junit:junit:4.12'
+
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}

android/gradle.properties

@@ -0,0 +1,32 @@
+#
+# Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+#
+# This file is part of Loop Habit Tracker.
+#
+# Loop Habit Tracker is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# Loop Habit Tracker is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

android/settings.gradle

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+include ':react-native-svg'
+
+project(':react-native-svg').projectDir = new File(rootProject.projectDir,
+        '../react-native/node_modules/react-native-svg/android')

android/src/main/AndroidManifest.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="org.isoron.habits">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.AppCompat.Light.NoActionBar"
+        android:networkSecurityConfig="@xml/network"
+        tools:ignore="GoogleAppIndexingWarning">
+
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
+    </application>
+
+</manifest>

android/src/main/java/org/isoron/habits/CoreModule.kt

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.habits
+
+import com.facebook.react.bridge.*
+import com.facebook.react.modules.core.DeviceEventManagerModule.*
+import org.isoron.uhabits.*
+
+
+class CoreModule(
+        private val context: ReactApplicationContext
+) : ReactContextBaseJavaModule(context) {
+
+    private var backend = Backend()
+    private lateinit var emitter: RCTDeviceEventEmitter
+
+    override fun initialize() {
+        super.initialize()
+        emitter = context.getJSModule(RCTDeviceEventEmitter::class.java)
+        backend.createHabit("Wake up early")
+        backend.createHabit("Wash clothes")
+        backend.createHabit("Exercise")
+        backend.createHabit("Meditate")
+        backend.createHabit("Take vitamins")
+        backend.createHabit("Write 'the quick brown fox jumps over the lazy dog' daily")
+        backend.createHabit("Write journal")
+        backend.createHabit("Study French")
+    }
+
+    override fun getName(): String {
+        return "CoreModule"
+    }
+
+    @ReactMethod
+    fun requestHabitList() {
+        val params = Arguments.createArray()
+        for ((id, data) in backend.getHabitList()) {
+            params.pushMap(Arguments.createMap().apply {
+                putString("key", id.toString())
+                putString("name", data["name"] as String)
+                putInt("color", data["color"] as Int)
+            })
+        }
+        emitter.emit("onHabitList", params)
+    }
+
+    @ReactMethod
+    fun createHabit(name: String) {
+        backend.createHabit(name)
+    }
+
+    @ReactMethod
+    fun deletHabit(id: Int) {
+        backend.deleteHabit(id)
+    }
+
+    @ReactMethod
+    fun updateHabit(id: Int, name: String) {
+        backend.updateHabit(id, name)
+    }
+}

android/src/main/java/org/isoron/habits/CorePackage.kt

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.habits
+
+import android.view.*
+import com.facebook.react.*
+import com.facebook.react.bridge.*
+import com.facebook.react.uimanager.*
+import com.facebook.react.uimanager.ViewManager
+import java.util.*
+
+class CorePackage : ReactPackage {
+
+    override fun createNativeModules(ctx: ReactApplicationContext) : MutableList<NativeModule> {
+        return mutableListOf(CoreModule(ctx))
+    }
+
+    override fun createViewManagers(reactContext: ReactApplicationContext?)
+            : MutableList<ViewManager<View, ReactShadowNode<*>>> {
+        return Collections.emptyList()
+    }
+}

android/src/main/java/org/isoron/habits/MainActivity.kt

@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.habits
+
+import android.content.*
+import android.net.*
+import android.os.*
+import android.os.Build.VERSION.*
+import android.os.Build.VERSION_CODES.*
+import android.provider.*
+import android.support.v7.app.*
+import android.view.*
+import com.facebook.react.*
+import com.facebook.react.common.*
+import com.facebook.react.shell.*
+import com.horcrux.svg.*
+
+class MainActivity : AppCompatActivity() {
+
+    private lateinit var reactInstanceManager: ReactInstanceManager
+    private lateinit var reactRootView: ReactRootView
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        if (SDK_INT >= M && !Settings.canDrawOverlays(this)) {
+            startActivityForResult(Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
+                    Uri.parse("package:$packageName")), 0)
+        }
+
+        reactRootView = ReactRootView(this)
+        reactInstanceManager = ReactInstanceManager.builder()
+                .setApplication(application)
+                .setBundleAssetName("index.android.bundle")
+                .setJSMainModulePath("index.android")
+                .addPackage(MainReactPackage())
+                .addPackage(CorePackage())
+                .addPackage(SvgPackage())
+                .setUseDeveloperSupport(BuildConfig.DEBUG)
+                .setInitialLifecycleState(LifecycleState.RESUMED)
+                .build()
+
+        reactRootView.startReactApplication(reactInstanceManager, "LoopHabitTracker", null)
+        setContentView(reactRootView)
+    }
+
+    override fun onPause() {
+        reactInstanceManager.onHostPause(this)
+        super.onPause()
+    }
+
+    override fun onResume() {
+        super.onResume()
+        reactInstanceManager.onHostResume(this)
+    }
+
+    override fun onDestroy() {
+        reactInstanceManager.onHostDestroy(this)
+        reactRootView.unmountReactApplication()
+        super.onDestroy()
+    }
+
+    override fun onKeyUp(keyCode: Int, event: KeyEvent): Boolean {
+        if (keyCode == KeyEvent.KEYCODE_MENU) {
+            reactInstanceManager.showDevOptionsDialog()
+            return true
+        }
+        return super.onKeyUp(keyCode, event)
+    }
+}

android/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,53 @@
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:aapt="http://schemas.android.com/aapt"
+        android:width="108dp"
+        android:height="108dp"
+        android:viewportHeight="108"
+        android:viewportWidth="108">
+    <path
+            android:fillType="evenOdd"
+            android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+            android:strokeColor="#00000000"
+            android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                    android:endX="78.5885"
+                    android:endY="90.9159"
+                    android:startX="48.7653"
+                    android:startY="61.0927"
+                    android:type="linear">
+                <item
+                        android:color="#44000000"
+                        android:offset="0.0"/>
+                <item
+                        android:color="#00000000"
+                        android:offset="1.0"/>
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+            android:fillColor="#FFFFFF"
+            android:fillType="nonZero"
+            android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+            android:strokeColor="#00000000"
+            android:strokeWidth="1"/>
+</vector>

android/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<vector
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:height="108dp"
+        android:width="108dp"
+        android:viewportHeight="108"
+        android:viewportWidth="108">
+    <path android:fillColor="#26A69A"
+          android:pathData="M0,0h108v108h-108z"/>
+    <path android:fillColor="#00000000" android:pathData="M9,0L9,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,0L19,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M29,0L29,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M39,0L39,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M49,0L49,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M59,0L59,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M69,0L69,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M79,0L79,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M89,0L89,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M99,0L99,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,9L108,9"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,19L108,19"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,29L108,29"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,39L108,39"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,49L108,49"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,59L108,59"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,69L108,69"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,79L108,79"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,89L108,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,99L108,99"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,29L89,29"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,39L89,39"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,49L89,49"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,59L89,59"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,69L89,69"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,79L89,79"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M29,19L29,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M39,19L39,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M49,19L49,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M59,19L59,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M69,19L69,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M79,19L79,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+</vector>

android/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

android/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

android/src/main/res/values/colors.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

android/src/main/res/values/strings.xml

@@ -0,0 +1,22 @@
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<resources>
+    <string name="app_name">Loop Habit Tracker</string>
+</resources>

android/src/main/res/values/styles.xml

@@ -0,0 +1,30 @@
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

android/src/main/res/xml/network.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<network-security-config>
+    <domain-config cleartextTrafficPermitted="true">
+        <domain includeSubdomains="true">127.0.0.1</domain>
+    </domain-config>
+</network-security-config>

core/build.gradle

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        maven { url "https://dl.bintray.com/kotlin/kotlin-eap" }
+    }
+
+    dependencies {
+        classpath "com.android.tools.build:gradle:3.2.1"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.11"
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        maven { url "https://dl.bintray.com/kotlin/kotlin-eap" }
+    }
+}
+
+apply plugin:"kotlin-multiplatform"
+
+kotlin {
+    targets {
+        fromPreset(presets.jvm, 'jvm')
+        fromPreset(presets.iosX64, 'iOS') {
+            compilations.main.outputKinds('FRAMEWORK')
+        }
+    }
+
+    sourceSets {
+        commonMain {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-stdlib-common'
+            }
+        }
+        commonTest {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-test-common'
+                implementation 'org.jetbrains.kotlin:kotlin-test-annotations-common'
+            }
+        }
+        jvmMain {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8'
+            }
+        }
+        jvmTest {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-test'
+                implementation 'org.jetbrains.kotlin:kotlin-test-junit'
+            }
+        }
+    }
+}
+
+configurations {
+    compileClasspath
+}

core/src/commonMain/kotlin/org/isoron/uhabits/Backend.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits
+
+import org.isoron.uhabits.models.Color
+import org.isoron.uhabits.models.Frequency
+import org.isoron.uhabits.models.Habit
+import org.isoron.uhabits.models.HabitType
+import kotlin.random.Random
+
+class Backend {
+    var nextId = 1
+    var habits = mutableListOf<Habit>()
+
+    fun getHabitList(): Map<Int, Map<String, *>> {
+        return habits.map { h ->
+            h.id to mapOf("name" to h.name,
+                          "color" to h.color.paletteIndex)
+        }.toMap()
+    }
+
+    fun createHabit(name: String) {
+        val c = (nextId / 4) % 5
+        habits.add(Habit(nextId, name, "", Frequency(1, 1), Color(c),
+                         false, habits.size, "", 0, HabitType.YES_NO_HABIT))
+        nextId += 1
+    }
+
+    fun deleteHabit(id: Int) {
+        val h = habits.find { h -> h.id == id }
+        if (h != null) habits.remove(h)
+    }
+
+    fun updateHabit(id: Int, name: String) {
+        val h = habits.find { h -> h.id == id }
+        h?.name = name
+    }
+}

core/src/commonMain/kotlin/org/isoron/uhabits/models/Checkmark.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.models
+
+data class Checkmark(var timestamp: Timestamp,
+                     var value: Int)

core/src/commonMain/kotlin/org/isoron/uhabits/models/Color.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.models
+
+class Color(val paletteIndex: Int)

core/src/commonMain/kotlin/org/isoron/uhabits/models/Frequency.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.models
+
+data class Frequency(val numerator: Int,
+                     val denominator: Int)

core/src/commonMain/kotlin/org/isoron/uhabits/models/Habit.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.models
+
+data class Habit(var id: Int,
+                 var name: String,
+                 var description: String,
+                 var frequency: Frequency,
+                 var color: Color,
+                 var isArchived: Boolean,
+                 var position: Int,
+                 var unit: String,
+                 var target: Int,
+                 var type: HabitType)

core/src/commonMain/kotlin/org/isoron/uhabits/models/HabitType.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.models
+
+enum class HabitType {
+    YES_NO_HABIT,
+    NUMERICAL_HABIT,
+}

core/src/commonMain/kotlin/org/isoron/uhabits/models/Timestamp.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.models
+
+class Timestamp(val unixTime: Long)

core/src/commonTest/kotlin/BackendTest.kt

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+class BackendTest {
+    @Test
+    fun testBackend() {
+        val backend = Backend()
+        assertEquals(backend.getHabitList().size, 0)
+
+        backend.createHabit("Brush teeth")
+        backend.createHabit("Wake up early")
+
+        var result = backend.getHabitList()
+        assertEquals(result.size, 2)
+        assertEquals(result[1]!!["name"], "Brush teeth")
+        assertEquals(result[2]!!["name"], "Wake up early")
+
+        backend.deleteHabit(1)
+        result = backend.getHabitList()
+        assertEquals(result.size, 1)
+        assertTrue(2 in result.keys)
+
+        backend.updateHabit(2, "Wake up late")
+        result = backend.getHabitList()
+        assertEquals(result[2]!!["name"], "Wake up late")
+    }
+}

ios/.gitignore

@@ -0,0 +1,28 @@
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
+*.dSYM
+*.dSYM.zip
+*.hmap
+*.ipa
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+*.xccheckout
+*.xcscmblueprint
+*.xcworkspace
+.build/
+Carthage/Build
+DerivedData/
+build/
+fastlane/Preview.html
+fastlane/report.xml
+fastlane/screenshots/**/*.png
+fastlane/test_output
+iOSInjectionProject/
+playground.xcworkspace
+timeline.xctimeline
+xcuserdata/

ios/CoreModule.swift

@@ -0,0 +1,49 @@
+import Foundation
+
+@objc(CoreModule)
+class CoreModule: RCTEventEmitter {
+  
+  @objc
+  open override func supportedEvents() -> [String] {
+    return ["onHabitList"]
+  }
+  
+  @objc
+  func requestHabitList() {
+    DispatchQueue.main.async {
+      let habits = AppDelegate.backend.getHabitList()
+      let result = habits.map {
+        ["key": String($0.key.intValue),
+         "name": $0.value["name"],
+         "color": $0.value["color"]]
+      }
+      self.sendEvent(withName: "onHabitList", body: result)
+    }
+  }
+  
+  @objc
+  func createHabit(_ name: String) {
+    DispatchQueue.main.async {
+      AppDelegate.backend.createHabit(name: name)
+    }
+  }
+  
+  @objc
+  func deleteHabit(_ id: Int32) {
+    DispatchQueue.main.async {
+      AppDelegate.backend.deleteHabit(id: id)
+    }
+  }
+  
+  @objc
+  func updateHabit(_ id: Int32, _ name: String) {
+    DispatchQueue.main.async {
+      AppDelegate.backend.updateHabit(id: id, name: name)
+    }
+  }
+  
+  @objc
+  override static func requiresMainQueueSetup() -> Bool {
+    return true
+  }
+}

ios/uhabits.xcodeproj/xcshareddata/xcschemes/uhabits.xcscheme

@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0940"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "NO"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "83CBBA2D1A601D0E00E9B192"
+               BuildableName = "libReact.a"
+               BlueprintName = "React"
+               ReferencedContainer = "container:../node_modules/react-native/React/React.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+               BuildableName = "uhabits.app"
+               BlueprintName = "uhabits"
+               ReferencedContainer = "container:uhabits.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+            BuildableName = "uhabits.app"
+            BlueprintName = "uhabits"
+            ReferencedContainer = "container:uhabits.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+            BuildableName = "uhabits.app"
+            BlueprintName = "uhabits"
+            ReferencedContainer = "container:uhabits.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+            BuildableName = "uhabits.app"
+            BlueprintName = "uhabits"
+            ReferencedContainer = "container:uhabits.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

ios/uhabits/AppDelegate.swift

@@ -0,0 +1,30 @@
+import Foundation
+
+@UIApplicationMain
+
+class AppDelegate: UIResponder, UIApplicationDelegate {
+  var window: UIWindow?
+  var bridge: RCTBridge!
+  static var backend = Backend()
+  
+  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+    AppDelegate.backend.createHabit(name: "Wake up early")
+    AppDelegate.backend.createHabit(name: "Wash clothes")
+    AppDelegate.backend.createHabit(name: "Exercise")
+    AppDelegate.backend.createHabit(name: "Meditate")
+    AppDelegate.backend.createHabit(name: "Take vitamins")
+    AppDelegate.backend.createHabit(name: "Write 'the quick brown fox jumps over the lazy dog' daily")
+    AppDelegate.backend.createHabit(name: "Write journal")
+    AppDelegate.backend.createHabit(name: "Study French")
+    
+    let jsCodeLocation = RCTBundleURLProvider.sharedSettings().jsBundleURL(forBundleRoot: "index.ios", fallbackResource: nil)
+    let rootView = RCTRootView(bundleURL: jsCodeLocation, moduleName: "LoopHabitTracker", initialProperties: nil, launchOptions: launchOptions)
+    rootView?.backgroundColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
+    self.window = UIWindow(frame: UIScreen.main.bounds)
+    let rootViewController = UIViewController()
+    rootViewController.view = rootView
+    self.window?.rootViewController = rootViewController
+    self.window?.makeKeyAndVisible()
+    return true
+  }
+}

ios/uhabits/Base.lproj/LaunchScreen.xib

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="iN0-l3-epB">
+            <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+            <nil key="simulatedStatusBarMetrics"/>
+            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
+            <point key="canvasLocation" x="548" y="455"/>
+        </view>
+    </objects>
+</document>

ios/uhabits/BridgingHeader.h

@@ -0,0 +1,5 @@
+#import <React/RCTBundleURLProvider.h>
+#import <React/RCTRootView.h>
+#import <React/RCTBridgeModule.h>
+#import <React/RCTEventEmitter.h>
+#import <core.h>

ios/uhabits/CoreModuleBridge.m

@@ -0,0 +1,10 @@
+#import <Foundation/Foundation.h>
+#import <React/RCTBridgeModule.h>
+#import <React/RCTEventEmitter.h>
+
+@interface RCT_EXTERN_MODULE(CoreModule, RCTEventEmitter)
+RCT_EXTERN_METHOD(createHabit:(NSString)name)
+//RCT_EXTERN_METHOD(updateHabit:(int)id (NSString)name)
+//RCT_EXTERN_METHOD(deleteHabit:(int)id)
+RCT_EXTERN_METHOD(requestHabitList)
+@end

ios/uhabits/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,53 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/uhabits/Images.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/uhabits/Info.plist

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UIAppFonts</key>
+	<array>
+		<string>FontAwesome Regular.ttf</string>
+	</array>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleDisplayName</key>
+	<string>uhabits</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>NSLocationWhenInUseUsageDescription</key>
+	<string></string>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+	<key>NSAppTransportSecurity</key>
+	<dict>
+		<key>NSAllowsArbitraryLoads</key>
+		<true/>
+		<key>NSExceptionDomains</key>
+		<dict>
+			<key>localhost</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+		</dict>
+	</dict>
+</dict>
+</plist>

react-native/.eslintrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+    "extends": "airbnb",
+    "rules": {
+      "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
+      "import/prefer-default-export": false,
+    }
+};

react-native/index.android.js

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import React from 'react';
+import {
+  AppRegistry,
+  StyleSheet,
+  View,
+  ToolbarAndroid,
+  StatusBar,
+} from 'react-native';
+import ListHabitScene from './src/components/ListHabits/index';
+import { Colors } from './src/helpers/Colors';
+
+const icAdd = require('./res/images/ic_add.png');
+const icFilter = require('./res/images/ic_filter.png');
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: Colors.appBackground,
+  },
+  toolbar: {
+    backgroundColor: Colors.toolbarBackground,
+    height: 56,
+    alignSelf: 'stretch',
+    elevation: 8,
+  },
+});
+
+function RootComponent() {
+  return (
+    <View style={styles.container}>
+      <ToolbarAndroid
+        title="Habits"
+        style={styles.toolbar}
+        actions={[
+          { title: 'Add', icon: icAdd, show: 'always' },
+          { title: 'Filter', icon: icFilter, show: 'always' },
+          { title: 'Settings', show: 'never' },
+        ]}
+      />
+      <StatusBar
+        backgroundColor={Colors.statusBarBackground}
+        barStyle={Colors.statusBarStyle}
+      />
+      <ListHabitScene />
+    </View>
+  );
+}
+
+AppRegistry.registerComponent('LoopHabitTracker', () => RootComponent);

react-native/index.ios.js

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import React from 'react';
+import {
+  AppRegistry,
+  NavigatorIOS,
+  NativeModules,
+  NativeEventEmitter,
+} from 'react-native';
+import ListHabitsScene from './src/components/ListHabits/index';
+
+function RootComponent() {
+  return (
+    <NavigatorIOS
+      translucent={false}
+      initialRoute={{
+        component: ListHabitsScene,
+        title: 'Habits',
+        rightButtonSystemIcon: 'add',
+      }}
+      style={{ flex: 1 }}
+    />
+  );
+}
+
+AppRegistry.registerComponent('LoopHabitTracker', () => RootComponent);

react-native/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "LoopHabitTracker",
+  "version": "0.0.1",
+  "private": true,
+  "scripts": {
+    "start": "node node_modules/react-native/local-cli/cli.js start"
+  },
+  "dependencies": {
+    "prop-types": "^15.6.2",
+    "react": "^16.6.3",
+    "react-native": "^0.57.8",
+    "react-native-svg": "^9.0.0",
+    "react-native-vector-icons": "^6.1.0"
+  },
+  "devDependencies": {
+    "eslint": "^5.12.1",
+    "eslint-config-airbnb": "^17.1.0",
+    "eslint-plugin-import": "^2.14.0",
+    "eslint-plugin-jsx-a11y": "^6.1.2",
+    "eslint-plugin-react": "^7.12.4"
+  }
+}

react-native/src/components/ListHabits/CheckmarkButton.js

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import PropTypes from 'prop-types';
+import React from 'react';
+import {
+  StyleSheet,
+  Text,
+  View,
+} from 'react-native';
+import FontAwesome from '../../helpers/FontAwesome';
+import { Colors } from '../../helpers/Colors';
+
+const styles = StyleSheet.create({
+  checkmarkBox: {
+    width: 44,
+    height: 44,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  checkmark: {
+    fontFamily: 'FontAwesome',
+    fontSize: 14,
+  },
+});
+
+function randomInt(max) {
+  return Math.floor(Math.random() * Math.floor(max));
+}
+
+export default function CheckmarkButton(props) {
+  let text;
+  const { color } = props;
+  const value = Math.min(2, randomInt(5));
+
+  if (value === 2) {
+    text = (
+      <Text style={[styles.checkmark, { color }]}>
+        {FontAwesome.check}
+      </Text>
+    );
+  } else if (value === 1) {
+    text = (
+      <Text style={[styles.checkmark, { color: Colors.unchecked }]}>
+        {FontAwesome.check}
+      </Text>
+    );
+  } else {
+    text = (
+      <Text style={[styles.checkmark, { color: Colors.unchecked }]}>
+        {FontAwesome.times}
+      </Text>
+    );
+  }
+  return (
+    <View style={styles.checkmarkBox}>{text}</View>
+  );
+}
+
+CheckmarkButton.propTypes = {
+  color: PropTypes.string.isRequired,
+};

react-native/src/components/ListHabits/HabitList.js

@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import React from 'react';
+import {
+  FlatList,
+  StyleSheet,
+  Text,
+  View,
+} from 'react-native';
+import { Colors } from '../../helpers/Colors';
+import { Emitter, Backend } from '../../helpers/Backend';
+import Ring from '../common/Ring';
+import CheckmarkButton from './CheckmarkButton';
+
+const styles = StyleSheet.create({
+  item: {
+    backgroundColor: Colors.itemBackground,
+    padding: 1,
+    marginTop: 0,
+    marginBottom: 1,
+    marginLeft: 0,
+    marginRight: 0,
+    elevation: 0,
+    flexDirection: 'row',
+    alignItems: 'stretch',
+  },
+  ringContainer: {
+    width: 35,
+    height: 45,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  labelContainer: {
+    width: 44,
+    flex: 1,
+    justifyContent: 'center',
+  },
+});
+
+export default class HabitList extends React.Component {
+  constructor(props) {
+    super(props);
+    this.state = { habits: [] };
+  }
+
+  componentDidMount() {
+    Emitter.addListener('onHabitList', (e) => {
+      this.setState({ habits: e });
+    });
+    Backend.requestHabitList();
+  }
+
+  render() {
+    const { habits } = this.state;
+    return (
+      <FlatList
+        style={styles.container}
+        data={habits}
+        renderItem={({ item }) => (
+          <View style={styles.item}>
+            <View style={styles.ringContainer}>
+              <Ring
+                color={Colors[item.color]}
+                size={14}
+                strokeWidth={20}
+                percentage={Math.random()}
+              />
+            </View>
+            <View style={styles.labelContainer}>
+              <Text
+                numberOfLines={2}
+                style={{
+                  fontSize: 14,
+                  color: Colors[item.color],
+                }}
+              >
+                {item.name}
+              </Text>
+            </View>
+            <CheckmarkButton color={Colors[item.color]} />
+            <CheckmarkButton color={Colors[item.color]} />
+            <CheckmarkButton color={Colors[item.color]} />
+            <CheckmarkButton color={Colors[item.color]} />
+            <CheckmarkButton color={Colors[item.color]} />
+          </View>
+        )}
+      />
+    );
+  }
+}

react-native/src/components/ListHabits/HabitListHeader.js

@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ * Copyright (C) 2019 Javier Artiles
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import React from 'react';
+import { View, StyleSheet, Text } from 'react-native';
+import { Colors } from '../../helpers/Colors';
+
+const styles = StyleSheet.create({
+  container: {
+    height: 50,
+    paddingRight: 1,
+    backgroundColor: Colors.headerBackground,
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'flex-end',
+    elevation: 4,
+    borderBottomColor: Colors.headerBorderColor,
+    borderBottomWidth: StyleSheet.hairlineWidth,
+  },
+  column: {
+    width: 44,
+    alignItems: 'center',
+  },
+  text: {
+    color: Colors.headerTextColor,
+    fontWeight: 'bold',
+  },
+  dayName: {
+    fontSize: 10,
+  },
+  dayNumber: {
+    fontSize: 12,
+  },
+});
+
+export default class HabitListHeader extends React.Component {
+  static renderColumn(dayName, dayNumber) {
+    return (
+      <View
+        key={dayNumber}
+        style={styles.column}
+      >
+        <Text style={[styles.text, styles.dayName]}>
+          {dayName.toUpperCase()}
+        </Text>
+        <Text style={[styles.text, styles.dayNumber]}>
+          {dayNumber}
+        </Text>
+      </View>
+    );
+  }
+
+  static renderColumns() {
+    return [
+      {
+        dayName: 'Sun',
+        dayNumber: '6',
+      },
+      {
+        dayName: 'Sat',
+        dayNumber: '5',
+      },
+      {
+        dayName: 'Fri',
+        dayNumber: '4',
+      },
+      {
+        dayName: 'Thu',
+        dayNumber: '3',
+      },
+      {
+        dayName: 'Wed',
+        dayNumber: '2',
+      },
+
+    ].map((day) => {
+      const { dayName, dayNumber } = day;
+      return HabitListHeader.renderColumn(dayName, dayNumber);
+    });
+  }
+
+  render() {
+    return (
+      <View style={styles.container}>
+        {HabitListHeader.renderColumns()}
+      </View>
+    );
+  }
+}

react-native/src/components/ListHabits/index.js

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import React from 'react';
+import { StyleSheet, View } from 'react-native';
+import { Colors } from '../../helpers/Colors';
+import HabitListHeader from './HabitListHeader';
+import HabitList from './HabitList';
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: Colors.appBackground,
+  },
+});
+
+export default function ListHabitsScene() {
+  return (
+    <View style={styles.container}>
+      <HabitListHeader />
+      <HabitList />
+    </View>
+  );
+}

react-native/src/components/common/Ring.js

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import React from 'react';
+import PropTypes from 'prop-types';
+import Svg, { Circle } from 'react-native-svg';
+
+export default function Ring(props) {
+  const {
+    size, strokeWidth, color, percentage,
+  } = props;
+
+  return (
+    <Svg
+      height={size}
+      width={size}
+      viewBox="0 0 100 100"
+      style={{ transform: [{ rotate: '-90deg' }] }}
+    >
+      <Circle
+        cx="50"
+        cy="50"
+        r={50 - strokeWidth / 2}
+        stroke="#eee"
+        strokeWidth={strokeWidth}
+        fill="transparent"
+      />
+      <Circle
+        cx="50"
+        cy="50"
+        r={50 - strokeWidth / 2}
+        stroke={color}
+        strokeWidth={strokeWidth}
+        fill="transparent"
+        strokeDashoffset={`${2 * Math.PI * 45 * (1.0 - percentage)}`}
+        strokeDasharray={`${2 * Math.PI * 45}`}
+      />
+    </Svg>
+  );
+}
+
+Ring.propTypes = {
+  size: PropTypes.number.isRequired,
+  strokeWidth: PropTypes.number.isRequired,
+  color: PropTypes.string.isRequired,
+  percentage: PropTypes.number.isRequired,
+};

react-native/src/helpers/Backend.js

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import {
+  NativeEventEmitter,
+  DeviceEventEmitter,
+  NativeModules,
+  Platform,
+} from 'react-native';
+
+const { CoreModule } = NativeModules;
+
+let emitter = DeviceEventEmitter;
+if (Platform.OS === 'ios') {
+  emitter = new NativeEventEmitter(CoreModule);
+}
+
+export const Emitter = emitter;
+export const Backend = NativeModules.CoreModule;

react-native/src/helpers/Colors.js

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+export const LIGHT_PALETTE = {
+  0: '#D32F2F',
+  1: '#512DA8',
+  2: '#F57C00',
+  3: '#FF8F00',
+  4: '#F9A825',
+  5: '#AFB42B',
+  6: '#7CB342',
+  7: '#388E3C',
+  8: '#00897B',
+  9: '#00ACC1',
+  10: '#039BE5',
+  11: '#1976D2',
+  12: '#303F9F',
+  13: '#5E35B1',
+  14: '#8E24AA',
+  15: '#D81B60',
+  16: '#5D4037',
+  17: '#000',
+  toolbar: '#f00',
+  appBackground: '#f0f0f0',
+  toolbarBackground: '#f4f4f4',
+  statusBarBackground: '#333',
+  statusBarStyle: 'light-content',
+  headerBackground: '#eee',
+  headerBorderColor: '#ccc',
+  headerTextColor: '#777',
+  itemBackground: '#fff',
+  unchecked: '#ddd',
+};
+
+export const Colors = LIGHT_PALETTE;

react-native/src/helpers/FontAwesome.js

@@ -0,0 +1,4 @@
+module.exports = {
+  check: '\uf00c',
+  times: '\uf00d',
+};