Reimplement custom frequencies

Closes #961.

uhabits-android/src/main/java/org/isoron/uhabits/activities/common/dialogs/FrequencyPickerDialog.kt

@@ -21,7 +21,6 @@ package org.isoron.uhabits.activities.common.dialogs
 
 import android.app.Dialog
 import android.os.Bundle
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.widget.EditText
@@ -44,7 +43,7 @@ class FrequencyPickerDialog(
     constructor() : this(1, 1)
 
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        val inflater = LayoutInflater.from(activity!!)
+        val inflater = LayoutInflater.from(requireActivity())
         contentView = inflater.inflate(R.layout.frequency_picker_dialog, null)
 
         addBeforeAfterText(
@@ -62,6 +61,11 @@ class FrequencyPickerDialog(
             contentView.xTimesPerMonthContainer,
         )
 
+        addBeforeAfterText(
+            this.getString(R.string.x_times_per_y_days),
+            contentView.xTimesPerYDaysContainer,
+        )
+
         contentView.everyDayRadioButton.setOnClickListener {
             check(contentView.everyDayRadioButton)
             unfocusAll()
@@ -95,7 +99,20 @@ class FrequencyPickerDialog(
             if (hasFocus) check(contentView.xTimesPerMonthRadioButton)
         }
 
-        return AlertDialog.Builder(activity!!)
+        contentView.xTimesPerYDaysRadioButton.setOnClickListener {
+            check(contentView.xTimesPerYDaysRadioButton)
+            focus(contentView.xTimesPerYDaysXTextView)
+        }
+
+        contentView.xTimesPerYDaysXTextView.setOnFocusChangeListener { v, hasFocus ->
+            if (hasFocus) check(contentView.xTimesPerYDaysRadioButton)
+        }
+
+        contentView.xTimesPerYDaysYTextView.setOnFocusChangeListener { v, hasFocus ->
+            if (hasFocus) check(contentView.xTimesPerYDaysRadioButton)
+        }
+
+        return AlertDialog.Builder(requireActivity())
             .setView(contentView)
             .setPositiveButton(R.string.save) { _, _ -> onSaveClicked() }
             .create()
@@ -106,12 +123,11 @@ class FrequencyPickerDialog(
         container: LinearLayout
     ) {
         val parts = str.split("%d")
-        container.addView(
-            TextView(activity).apply { text = parts[0].trim() }, 1,
-        )
-        container.addView(
-            TextView(activity).apply { text = parts[1].trim() }, 3,
-        )
+        for (i in parts.indices) {
+            container.addView(
+                TextView(activity).apply { text = parts[i].trim() }, 2 * i + 1,
+            )
+        }
     }
 
     private fun onSaveClicked() {
@@ -132,6 +148,12 @@ class FrequencyPickerDialog(
                     denominator = 7
                 }
             }
+            contentView.xTimesPerYDaysRadioButton.isChecked -> {
+                if (contentView.xTimesPerYDaysXTextView.text.isNotEmpty() && contentView.xTimesPerYDaysYTextView.text.isNotEmpty()) {
+                    numerator = Integer.parseInt(contentView.xTimesPerYDaysXTextView.text.toString())
+                    denominator = Integer.parseInt(contentView.xTimesPerYDaysYTextView.text.toString())
+                }
+            }
             else -> {
                 if (contentView.xTimesPerMonthTextView.text.isNotEmpty()) {
                     numerator = Integer.parseInt(contentView.xTimesPerMonthTextView.text.toString())
@@ -147,10 +169,10 @@ class FrequencyPickerDialog(
         dismiss()
     }
 
-    private fun check(view: RadioButton?) {
+    private fun check(view: RadioButton) {
         uncheckAll()
-        view?.isChecked = true
-        view?.requestFocus()
+        view.isChecked = true
+        view.requestFocus()
     }
 
     override fun onResume() {
@@ -179,8 +201,9 @@ class FrequencyPickerDialog(
                     contentView.xTimesPerWeekTextView.setText(freqNumerator.toString())
                     focus(contentView.xTimesPerWeekTextView)
                 } else {
-                    Log.w("FrequencyPickerDialog", "Unknown frequency: $freqNumerator/$freqDenominator")
-                    contentView.everyDayRadioButton.isChecked = true
+                    contentView.xTimesPerYDaysRadioButton.isChecked = true
+                    contentView.xTimesPerYDaysXTextView.setText(freqNumerator.toString())
+                    contentView.xTimesPerYDaysYTextView.setText(freqDenominator.toString())
                 }
             }
         }
@@ -196,6 +219,7 @@ class FrequencyPickerDialog(
         contentView.everyXDaysRadioButton.isChecked = false
         contentView.xTimesPerWeekRadioButton.isChecked = false
         contentView.xTimesPerMonthRadioButton.isChecked = false
+        contentView.xTimesPerYDaysRadioButton.isChecked = false
     }
 
     private fun unfocusAll() {

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/edit/EditHabitActivity.kt

@@ -69,7 +69,7 @@ fun formatFrequency(freqNum: Int, freqDen: Int, resources: Resources) = when {
     freqNum == 1 && freqDen == 7 -> resources.getString(R.string.every_week)
     freqNum == 1 && freqDen > 1 -> resources.getString(R.string.every_x_days, freqDen)
     freqDen == 7 -> resources.getString(R.string.x_times_per_week, freqNum)
-    else -> "$freqNum/$freqDen"
+    else -> resources.getString(R.string.x_times_per_y_days, freqNum, freqDen)
 }
 
 class EditHabitActivity : AppCompatActivity() {

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

@@ -120,4 +120,42 @@
 
     </LinearLayout>
 
+    <LinearLayout
+        android:id="@+id/xTimesPerYDaysContainer"
+        android:layout_width="match_parent"
+        android:layout_height="48dp"
+        android:gravity="center_vertical">
+
+        <RadioButton
+            android:id="@+id/xTimesPerYDaysRadioButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
+        <EditText
+            android:id="@+id/xTimesPerYDaysXTextView"
+            android:layout_width="50dp"
+            android:layout_height="40dp"
+            android:gravity="center"
+            android:background="@drawable/bg_input_box"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:inputType="number"
+            android:maxLength="3"
+            android:text="3" />
+
+
+        <EditText
+            android:id="@+id/xTimesPerYDaysYTextView"
+            android:layout_width="50dp"
+            android:layout_height="40dp"
+            android:gravity="center"
+            android:background="@drawable/bg_input_box"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:inputType="number"
+            android:maxLength="3"
+            android:text="14" />
+
+    </LinearLayout>
+
 </LinearLayout>

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

@@ -205,6 +205,7 @@
     <string name="measurable_example">e.g. How many miles did you run today? How many pages did you read?</string>
     <string name="x_times_per_week">%d times per week</string>
     <string name="x_times_per_month">%d times per month</string>
+    <string name="x_times_per_y_days">%d times in %d days</string>
     <string name="yes_or_no_short_example">e.g. Exercise</string>
     <string name="color">Color</string>
     <string name="example_target">e.g. 15</string>