App 2.16.3: full screen stays with drop-downs and dialogs

Opening a drop-down or a dialog brought the car's bars back until it
closed: each is a window of its own, and the system shows the bars when
a window without the full-screen flags takes focus.

- The drop-downs (upload frequency, tyre pressure unit, accent colour)
  are now single-choice buttons on the page: no extra window, one tap
  instead of two, full touch targets, the choice in the accent colour.
- Dialogs (About, update, pairing, phone settings, trip reset, date
  picker) are shown unfocusable, given the activity's full-screen
  flags, and only then allowed focus. None of them takes typing, which
  an unfocusable window would block.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QLJfZQZeAKAwSqViTmLzki

app/src/main/res/color/choice_background.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_checked="true" android:color="?attr/evAccentSurface" />
+    <item android:color="@color/ev_surface_raised" />
+</selector>

app/src/main/res/color/choice_stroke.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_checked="true" android:color="?attr/evAccent" />
+    <item android:color="@color/ev_outline" />
+</selector>

app/src/main/res/color/choice_text.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_checked="true" android:color="?attr/evAccent" />
+    <item android:color="@color/ev_text_primary" />
+</selector>

app/src/main/res/layout-w1000dp/pane_service.xml

@@ -27,7 +27,7 @@
             <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="24dp" android:background="@drawable/bg_glass">
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/design_service_timing" android:textAppearance="@style/Text.EV.Eyebrow" />
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/label_frequency" android:textAppearance="@style/Text.EV.Body" android:layout_marginTop="20dp" />
-                <Spinner android:id="@+id/interval_spinner" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:layout_marginTop="12dp" android:background="@drawable/bg_input_panel" android:popupBackground="@color/ev_surface_raised" android:contentDescription="@string/label_frequency" android:spinnerMode="dropdown" />
+                <com.google.android.material.chip.ChipGroup android:id="@+id/interval_choices" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" app:singleSelection="true" app:selectionRequired="true" app:chipSpacingHorizontal="12dp" app:chipSpacingVertical="8dp" />
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_frequency" android:textAppearance="@style/Text.EV.Secondary" android:layout_marginTop="12dp" />
                 <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/boost_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_boost_low_soc" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" />
                 <com.google.android.material.textfield.TextInputLayout android:id="@+id/low_soc_layout" style="@style/Widget.EV.Input" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" android:hint="@string/label_low_soc_threshold">

app/src/main/res/layout-w1000dp/pane_settings.xml

@@ -9,9 +9,9 @@
                 <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/voice_key_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_voice_key" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" />
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_voice_key" android:textAppearance="@style/Text.EV.Secondary" />
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/label_tire_unit" android:textAppearance="@style/Text.EV.Body" android:layout_marginTop="20dp" />
-                <Spinner android:id="@+id/tire_unit_spinner" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:layout_marginTop="12dp" android:background="@drawable/bg_input_panel" android:popupBackground="@color/ev_surface_raised" android:contentDescription="@string/label_tire_unit" android:spinnerMode="dropdown" />
+                <com.google.android.material.chip.ChipGroup android:id="@+id/tire_unit_choices" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" app:singleSelection="true" app:selectionRequired="true" app:chipSpacingHorizontal="12dp" app:chipSpacingVertical="8dp" />
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/label_accent" android:textAppearance="@style/Text.EV.Body" android:layout_marginTop="20dp" />
-                <Spinner android:id="@+id/accent_spinner" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:layout_marginTop="12dp" android:background="@drawable/bg_input_panel" android:popupBackground="@color/ev_surface_raised" android:contentDescription="@string/label_accent" android:spinnerMode="dropdown" />
+                <com.google.android.material.chip.ChipGroup android:id="@+id/accent_choices" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" app:singleSelection="true" app:selectionRequired="true" app:chipSpacingHorizontal="12dp" app:chipSpacingVertical="8dp" />
             </LinearLayout>
             <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="24dp" android:background="@drawable/bg_glass" android:layout_marginTop="16dp">
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/design_battery_settings_title" android:textAppearance="@style/Text.EV.Eyebrow" />

app/src/main/res/layout/choice_chip.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- One option of an on-page choice (MainActivity.bindChoices). Chips rather than a drop-down:
+     a drop-down opens its own window, which is not full screen, so the car's bars came back
+     while it was open; and one tap is easier than two while driving. -->
+<com.google.android.material.chip.Chip xmlns:android="http://schemas.android.com/apk/res/android"
+    style="@style/Widget.EV.Choice"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content" />

app/src/main/res/layout/pane_service.xml

@@ -24,7 +24,7 @@
         <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="24dp" android:background="@drawable/bg_glass" android:layout_marginTop="16dp">
             <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/design_service_timing" android:textAppearance="@style/Text.EV.Eyebrow" />
             <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/label_frequency" android:textAppearance="@style/Text.EV.Body" android:layout_marginTop="20dp" />
-            <Spinner android:id="@+id/interval_spinner" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:layout_marginTop="12dp" android:background="@drawable/bg_input_panel" android:popupBackground="@color/ev_surface_raised" android:contentDescription="@string/label_frequency" android:spinnerMode="dropdown" />
+            <com.google.android.material.chip.ChipGroup android:id="@+id/interval_choices" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" app:singleSelection="true" app:selectionRequired="true" app:chipSpacingHorizontal="12dp" app:chipSpacingVertical="8dp" />
             <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_frequency" android:textAppearance="@style/Text.EV.Secondary" android:layout_marginTop="12dp" />
             <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/boost_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_boost_low_soc" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" />
             <com.google.android.material.textfield.TextInputLayout android:id="@+id/low_soc_layout" style="@style/Widget.EV.Input" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" android:hint="@string/label_low_soc_threshold">

app/src/main/res/layout/pane_settings.xml

@@ -8,9 +8,9 @@
             <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/voice_key_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_voice_key" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" />
             <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_voice_key" android:textAppearance="@style/Text.EV.Secondary" />
             <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/label_tire_unit" android:textAppearance="@style/Text.EV.Body" android:layout_marginTop="20dp" />
-            <Spinner android:id="@+id/tire_unit_spinner" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:layout_marginTop="12dp" android:background="@drawable/bg_input_panel" android:popupBackground="@color/ev_surface_raised" android:contentDescription="@string/label_tire_unit" android:spinnerMode="dropdown" />
+            <com.google.android.material.chip.ChipGroup android:id="@+id/tire_unit_choices" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" app:singleSelection="true" app:selectionRequired="true" app:chipSpacingHorizontal="12dp" app:chipSpacingVertical="8dp" />
             <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/label_accent" android:textAppearance="@style/Text.EV.Body" android:layout_marginTop="20dp" />
-            <Spinner android:id="@+id/accent_spinner" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:layout_marginTop="12dp" android:background="@drawable/bg_input_panel" android:popupBackground="@color/ev_surface_raised" android:contentDescription="@string/label_accent" android:spinnerMode="dropdown" />
+            <com.google.android.material.chip.ChipGroup android:id="@+id/accent_choices" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="12dp" app:singleSelection="true" app:selectionRequired="true" app:chipSpacingHorizontal="12dp" app:chipSpacingVertical="8dp" />
         </LinearLayout>
         <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="24dp" android:background="@drawable/bg_glass" android:layout_marginTop="16dp">
             <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/design_battery_settings_title" android:textAppearance="@style/Text.EV.Eyebrow" />

app/src/main/res/layout/spinner_dropdown.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<TextView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent" android:layout_height="wrap_content"
-    android:minHeight="72dp" android:gravity="center_vertical"
-    android:paddingStart="20dp" android:paddingEnd="20dp"
-    android:paddingTop="12dp" android:paddingBottom="12dp"
-    android:background="?attr/selectableItemBackground"
-    android:textAppearance="@style/Text.EV.Body" />

app/src/main/res/layout/spinner_value.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<TextView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent" android:layout_height="wrap_content"
-    android:minHeight="72dp" android:gravity="center_vertical"
-    android:paddingStart="20dp" android:paddingEnd="20dp"
-    android:paddingTop="12dp" android:paddingBottom="12dp"
-    android:drawableEnd="@drawable/ic_chevron_down" android:drawablePadding="16dp"
-    android:textAppearance="@style/Text.EV.Body" />

app/src/main/res/values/styles_ev.xml

@@ -96,4 +96,20 @@
     <style name="ShapeAppearanceOverlay.EV.Button" parent="">
         <item name="cornerSize">18dp</item>
     </style>
+
+    <!-- On-page single choice (choice_chip.xml): a full touch target, the accent when chosen. -->
+    <style name="Widget.EV.Choice" parent="Widget.Material3.Chip.Filter">
+        <item name="android:checkable">true</item>
+        <item name="checkedIconVisible">false</item>
+        <item name="chipMinHeight">@dimen/touch_target</item>
+        <item name="chipMinTouchTargetSize">@dimen/touch_target</item>
+        <item name="android:textSize">@dimen/text_body</item>
+        <item name="android:textColor">@color/choice_text</item>
+        <item name="chipBackgroundColor">@color/choice_background</item>
+        <item name="chipStrokeColor">@color/choice_stroke</item>
+        <item name="chipStrokeWidth">1dp</item>
+        <item name="chipStartPadding">16dp</item>
+        <item name="chipEndPadding">16dp</item>
+        <item name="ensureMinTouchTargetSize">false</item>
+    </style>
 </resources>