HabitCardListView: Prevent duplicate inset decorations

Fixes #2171

uhabits-android/src/main/java/org/isoron/uhabits/activities/about/AboutView.kt

@@ -26,6 +26,7 @@ import org.isoron.uhabits.BuildConfig
 import org.isoron.uhabits.R
 import org.isoron.uhabits.core.models.PaletteColor
 import org.isoron.uhabits.databinding.AboutBinding
+import org.isoron.uhabits.utils.applyBottomInset
 import org.isoron.uhabits.utils.applyRootViewInsets
 import org.isoron.uhabits.utils.currentTheme
 import org.isoron.uhabits.utils.setupToolbar
@@ -55,6 +56,7 @@ class AboutView(
         binding.tvTranslate.setOnClickListener { screen.showTranslationWebsite() }
         binding.tvVersion.setOnClickListener { screen.onPressDeveloperCountdown() }
         binding.tvVersion.text = String.format(version, BuildConfig.VERSION_NAME)
+        binding.outerLinearLayout.applyBottomInset()
         applyRootViewInsets()
     }
 }

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/views/HabitCardListView.kt

@@ -20,11 +20,14 @@
 package org.isoron.uhabits.activities.habits.list.views
 
 import android.content.Context
+import android.graphics.Rect
 import android.os.Bundle
 import android.os.Parcelable
 import android.view.GestureDetector
 import android.view.MotionEvent
 import android.view.View
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.ItemTouchHelper.DOWN
 import androidx.recyclerview.widget.ItemTouchHelper.END
@@ -57,6 +60,7 @@ class HabitCardListView(
 ) : RecyclerView(context, null, R.attr.scrollableRecyclerViewStyle) {
 
     var checkmarkCount: Int = 0
+    private var insetDecorationsAdded: Boolean = false
 
     var dataOffset: Int = 0
         set(value) {
@@ -75,9 +79,32 @@ class HabitCardListView(
         setHasFixedSize(true)
         isLongClickable = true
         layoutManager = LinearLayoutManager(context)
+        applyBottomInset()
         super.setAdapter(adapter)
     }
 
+    private fun applyBottomInset() {
+        ViewCompat.setOnApplyWindowInsetsListener(this) { _, insets ->
+            if (insetDecorationsAdded) return@setOnApplyWindowInsetsListener insets
+            insetDecorationsAdded = true
+            val systemBarsInsets = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            addItemDecoration(object : ItemDecoration() {
+                override fun getItemOffsets(
+                    outRect: Rect,
+                    view: View,
+                    parent: RecyclerView,
+                    state: State
+                ) {
+                    val itemCount = parent.adapter?.itemCount
+                    if (parent.getChildAdapterPosition(view) == itemCount?.minus(1)) {
+                        outRect.bottom = systemBarsInsets.bottom
+                    }
+                }
+            })
+            insets
+        }
+    }
+
     fun createHabitCardView(): HabitCardView {
         return cardViewFactory.create()
     }

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/views/HabitCardView.kt

@@ -238,17 +238,18 @@ class HabitCardView(
 
     private fun getAbsoluteButtonLocation(timestamp: Timestamp): PointF {
         val containerLocation = IntArray(2)
-        this.getLocationOnScreen(containerLocation)
+        this.getLocationInWindow(containerLocation)
         val relButtonLocation = getRelativeButtonLocation(timestamp)
         val windowInsets = rootWindowInsets
-        val statusBarHeight = if (SDK_INT <= Build.VERSION_CODES.VANILLA_ICE_CREAM) {
+        val xInset = windowInsets?.displayCutout?.safeInsetLeft ?: 0
+        val yInset = if (SDK_INT <= Build.VERSION_CODES.VANILLA_ICE_CREAM) {
             windowInsets?.systemWindowInsetTop ?: 0
         } else {
             0
         }
         return PointF(
-            containerLocation[0].toFloat() + relButtonLocation.x,
-            containerLocation[1].toFloat() + relButtonLocation.y - statusBarHeight
+            containerLocation[0].toFloat() + relButtonLocation.x - xInset,
+            containerLocation[1].toFloat() + relButtonLocation.y - yInset
         )
     }
 

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/show/ShowHabitView.kt

@@ -25,6 +25,7 @@ import android.widget.FrameLayout
 import org.isoron.uhabits.core.ui.screens.habits.show.ShowHabitPresenter
 import org.isoron.uhabits.core.ui.screens.habits.show.ShowHabitState
 import org.isoron.uhabits.databinding.ShowHabitBinding
+import org.isoron.uhabits.utils.applyBottomInset
 import org.isoron.uhabits.utils.applyToolbarInsets
 import org.isoron.uhabits.utils.setupToolbar
 
@@ -57,6 +58,7 @@ class ShowHabitView(context: Context) : FrameLayout(context) {
         } else {
             binding.targetCard.visibility = GONE
         }
+        binding.linearLayout.applyBottomInset()
     }
 
     fun setListener(presenter: ShowHabitPresenter) {

uhabits-android/src/main/java/org/isoron/uhabits/activities/settings/SettingsActivity.kt

@@ -26,6 +26,7 @@ import org.isoron.uhabits.R
 import org.isoron.uhabits.activities.AndroidThemeSwitcher
 import org.isoron.uhabits.core.models.PaletteColor
 import org.isoron.uhabits.databinding.SettingsActivityBinding
+import org.isoron.uhabits.utils.applyBottomInset
 import org.isoron.uhabits.utils.applyRootViewInsets
 import org.isoron.uhabits.utils.setupToolbar
 
@@ -44,6 +45,7 @@ class SettingsActivity : AppCompatActivity() {
             theme = themeSwitcher.currentTheme
         )
         binding.root.applyRootViewInsets()
+        binding.root.applyBottomInset()
         setContentView(binding.root)
     }
 }

uhabits-android/src/main/java/org/isoron/uhabits/utils/ViewExtensions.kt

@@ -260,6 +260,14 @@ fun View.applyRootViewInsets() {
     }
 }
 
+fun View.applyBottomInset() {
+    ViewCompat.setOnApplyWindowInsetsListener(this) { view, insets ->
+        val systemBarsInsets = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+        view.setPadding(0, 0, 0, systemBarsInsets.bottom)
+        insets
+    }
+}
+
 fun View.applyToolbarInsets() {
     ViewCompat.setOnApplyWindowInsetsListener(this) { view, insets ->
         val systemBarsInsets = insets.getInsets(WindowInsetsCompat.Type.systemBars())

uhabits-android/src/main/res/layout/about.xml

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~ Copyright (C) 2016-2021 Álinson Santos Xavier <git@axavier.org>
   ~
   ~ This file is part of Loop Habit Tracker.
@@ -37,6 +36,7 @@
         android:layout_below="@id/toolbar">
 
         <LinearLayout
+            android:id="@+id/outerLinearLayout"
             style="@style/CardList">
 
             <LinearLayout
@@ -120,21 +120,66 @@
                 linked at the bottom of the list. If you qualify, please feel free to
                 submit a pull request adding yourself here.
                 -->
-                <TextView style="@style/About.Item" android:text="Álinson S. Xavier (@iSoron)"/>
-                <TextView style="@style/About.Item" android:text="Quentin Hibon (@hiqua)"/>
-                <TextView style="@style/About.Item" android:text="Oleg Ivashchenko (@olegivo)"/>
-                <TextView style="@style/About.Item" android:text="Kristian Tashkov (@KristianTashkov)"/>
-                <TextView style="@style/About.Item" android:text="Jakub Kalinowski (@kalina559)"/>
-                <TextView style="@style/About.Item" android:text="Rechee Jozil (@recheej)"/>
-                <TextView style="@style/About.Item" android:text="Sebastian Gallese (@sgallese)"/>
-                <TextView style="@style/About.Item" android:text="Luboš Luňák (@llunak)"/>
-                <TextView style="@style/About.Item" android:text="Bindu (@vbh)"/>
-                <TextView style="@style/About.Item" android:text="Victor Yu (@vyu1)"/>
-                <TextView style="@style/About.Item" android:text="Christoph Hennemann (@chennemann)"/>
-                <TextView style="@style/About.Item" android:text="Денис (@sciamano)"/>
-                <TextView style="@style/About.Item" android:text="Joseph Tran (@JotraN)"/>
-                <TextView style="@style/About.Item" android:text="Nikhil (@regularcoder)"/>
-                <TextView style="@style/About.Item" android:text="JanetQC"/>
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Álinson S. Xavier (@iSoron)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Quentin Hibon (@hiqua)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Oleg Ivashchenko (@olegivo)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Kristian Tashkov (@KristianTashkov)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Jakub Kalinowski (@kalina559)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Rechee Jozil (@recheej)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Sebastian Gallese (@sgallese)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Luboš Luňák (@llunak)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Bindu (@vbh)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Victor Yu (@vyu1)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Christoph Hennemann (@chennemann)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Денис (@sciamano)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Joseph Tran (@JotraN)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Nikhil (@regularcoder)" />
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="JanetQC" />
+
                 <TextView
                     android:id="@+id/tvContributors"
                     style="@style/About.Item.Clickable"

uhabits-android/src/main/res/layout/show_habit.xml

@@ -17,8 +17,7 @@
   ~ with this program. If not, see <http://www.gnu.org/licenses/>.
   -->
 
-<RelativeLayout
-    android:id="@+id/container"
+<RelativeLayout android:id="@+id/container"
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
@@ -41,6 +40,7 @@
 
         <LinearLayout
             style="@style/CardList"
+            android:id="@+id/linearLayout"
             android:clipToPadding="false">
 
             <org.isoron.uhabits.activities.habits.show.views.SubtitleCardView