StyledPlayerControlView: Simplify layout

- Replace some magic constants with use of layout gravity where possible
- Remove some attributes that are set in code anyway
- Remove some attributes that are set to their default values
- Inline transport controls
- Minor naming cleanup

PiperOrigin-RevId: 346980595

library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlViewLayoutManager.java

@@ -49,7 +49,7 @@ import java.util.List;
 
   private final StyledPlayerControlView styledPlayerControlView;
 
-  @Nullable private final ViewGroup embeddedTransportControls;
+  @Nullable private final ViewGroup centerControls;
   @Nullable private final ViewGroup bottomBar;
   @Nullable private final ViewGroup minimalControls;
   @Nullable private final ViewGroup basicControls;
@@ -99,8 +99,7 @@ import java.util.List;
 
     // Relating to Center View
     ViewGroup centerView = styledPlayerControlView.findViewById(R.id.exo_center_view);
-    embeddedTransportControls =
-        styledPlayerControlView.findViewById(R.id.exo_embedded_transport_controls);
+    centerControls = styledPlayerControlView.findViewById(R.id.exo_center_controls);
 
     // Relating to Minimal Layout
     minimalControls = styledPlayerControlView.findViewById(R.id.exo_minimal_controls);
@@ -126,7 +125,7 @@ import java.util.List;
 
     Resources resources = styledPlayerControlView.getResources();
     float bottomBarHeight =
-        resources.getDimension(R.dimen.exo_bottom_bar_height)
+        resources.getDimension(R.dimen.exo_styled_bottom_bar_height)
             - resources.getDimension(R.dimen.exo_styled_progress_bar_height);
     float progressBarHeight =
         resources.getDimension(R.dimen.exo_styled_progress_margin_bottom)
@@ -563,10 +562,8 @@ import java.util.List;
             - styledPlayerControlView.getPaddingBottom()
             - styledPlayerControlView.getPaddingTop();
     int defaultModeWidth =
-        Math.max(
-            getWidth(embeddedTransportControls), getWidth(timeView) + getWidth(overflowShowButton));
-    int defaultModeHeight =
-        getHeight(embeddedTransportControls) + getHeight(timeBar) + getHeight(bottomBar);
+        Math.max(getWidth(centerControls), getWidth(timeView) + getWidth(overflowShowButton));
+    int defaultModeHeight = getHeight(centerControls) + getHeight(timeBar) + getHeight(bottomBar);
 
     return (width <= defaultModeWidth || height <= defaultModeHeight);
   }

library/ui/src/main/res/layout/exo_styled_embedded_transport_controls.xml

@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright 2020 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:gravity="center"
-    android:orientation="horizontal"
-    android:visibility="visible">
-
-    <ImageButton android:id="@+id/exo_prev"
-        style="@style/ExoStyledControls.Button.Center.Previous"/>
-
-    <Button android:id="@+id/exo_rew_with_amount"
-        style="@style/ExoStyledControls.Button.Center.RewWithAmount"/>
-
-    <ImageButton android:id="@+id/exo_play_pause"
-        style="@style/ExoStyledControls.Button.Center.PlayPause"/>
-
-    <Button android:id="@+id/exo_ffwd_with_amount"
-        style="@style/ExoStyledControls.Button.Center.FfwdWithAmount"/>
-
-    <ImageButton android:id="@+id/exo_next"
-        style="@style/ExoStyledControls.Button.Center.Next"/>
-
-</LinearLayout>

library/ui/src/main/res/layout/exo_styled_player_control_view.xml

@@ -27,30 +27,46 @@
         android:layout_gravity="center"
         android:background="@color/exo_black_opacity_60"/>
 
-    <include android:id="@+id/exo_embedded_transport_controls"
+    <LinearLayout android:id="@+id/exo_center_controls"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
-        layout="@layout/exo_styled_embedded_transport_controls"/>
+        android:gravity="center">
+
+      <ImageButton android:id="@+id/exo_prev"
+          style="@style/ExoStyledControls.Button.Center.Previous"/>
+
+      <Button android:id="@+id/exo_rew_with_amount"
+          style="@style/ExoStyledControls.Button.Center.RewWithAmount"/>
+
+      <ImageButton android:id="@+id/exo_play_pause"
+          style="@style/ExoStyledControls.Button.Center.PlayPause"/>
+
+      <Button android:id="@+id/exo_ffwd_with_amount"
+          style="@style/ExoStyledControls.Button.Center.FfwdWithAmount"/>
+
+      <ImageButton android:id="@+id/exo_next"
+          style="@style/ExoStyledControls.Button.Center.Next"/>
+
+    </LinearLayout>
 
   </FrameLayout>
 
   <FrameLayout android:id="@+id/exo_bottom_bar"
       android:layout_width="match_parent"
-      android:layout_height="@dimen/exo_bottom_bar_height"
+      android:layout_height="@dimen/exo_styled_bottom_bar_height"
       android:layout_gravity="bottom"
       android:background="@color/exo_bottom_bar_background"
-      android:paddingBottom="@dimen/exo_bottom_bar_padding_bottom"
       android:layoutDirection="ltr">
 
     <LinearLayout android:id="@+id/exo_time"
-        android:layout_width="@dimen/exo_time_view_width"
-        android:layout_height="@dimen/exo_small_icon_height"
-        android:paddingStart="@dimen/exo_time_view_padding"
-        android:paddingEnd="@dimen/exo_time_view_padding"
-        android:paddingLeft="@dimen/exo_time_view_padding"
-        android:paddingRight="@dimen/exo_time_view_padding"
-        android:layout_gravity="bottom|start"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:paddingStart="@dimen/exo_styled_time_padding"
+        android:paddingEnd="@dimen/exo_styled_time_padding"
+        android:paddingLeft="@dimen/exo_styled_time_padding"
+        android:paddingRight="@dimen/exo_styled_time_padding"
+        android:layout_gravity="center_vertical|start"
         android:layoutDirection="ltr">
 
       <TextView android:id="@+id/exo_position"
@@ -67,23 +83,21 @@
     <LinearLayout android:id="@+id/exo_basic_controls"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
+        android:layout_gravity="center_vertical|end"
         android:orientation="horizontal"
         android:layoutDirection="ltr">
 
-      <ImageButton android:id="@id/exo_shuffle"
+      <ImageButton android:id="@+id/exo_shuffle"
           style="@style/ExoStyledControls.Button.Bottom.Shuffle"/>
 
-      <ImageButton android:id="@id/exo_repeat_toggle"
+      <ImageButton android:id="@+id/exo_repeat_toggle"
           style="@style/ExoStyledControls.Button.Bottom.RepeatToggle"/>
 
-      <ImageButton android:id="@id/exo_vr"
+      <ImageButton android:id="@+id/exo_vr"
           style="@style/ExoStyledControls.Button.Bottom.VR"/>
 
       <ImageButton android:id="@+id/exo_subtitle"
-          style="@style/ExoStyledControls.Button.Bottom.CC"
-          android:alpha="0.5"
-          android:scaleType="fitCenter"/>
+          style="@style/ExoStyledControls.Button.Bottom.CC"/>
 
       <ImageButton android:id="@+id/exo_fullscreen"
           style="@style/ExoStyledControls.Button.Bottom.FullScreen"/>
@@ -92,7 +106,6 @@
           style="@style/ExoStyledControls.Button.Bottom.Settings"/>
 
       <ImageButton android:id="@+id/exo_overflow_show"
-          android:visibility="gone"
           style="@style/ExoStyledControls.Button.Bottom.OverflowShow"/>
 
     </LinearLayout>
@@ -100,14 +113,12 @@
     <HorizontalScrollView android:id="@+id/exo_extra_controls_scroll_view"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
+        android:layout_gravity="center_vertical|end"
         android:visibility="invisible">
 
       <LinearLayout android:id="@+id/exo_extra_controls"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
-          android:layout_gravity="bottom|end"
-          android:orientation="horizontal"
           android:layoutDirection="ltr">
 
         <ImageButton android:id="@+id/exo_overflow_hide"
@@ -125,13 +136,12 @@
       android:orientation="vertical"
       android:layout_gravity="bottom|end"
       android:layout_marginBottom="@dimen/exo_styled_progress_layout_height"
-      android:visibility="invisible">
+      android:visibility="invisible"/>
 
-  </LinearLayout>
-
-  <View android:id="@id/exo_progress_placeholder"
+  <View android:id="@+id/exo_progress_placeholder"
       android:layout_width="match_parent"
       android:layout_height="@dimen/exo_styled_progress_layout_height"
       android:layout_gravity="bottom"
       android:layout_marginBottom="@dimen/exo_styled_progress_margin_bottom"/>
+
 </merge>

library/ui/src/main/res/values/dimens.xml

@@ -41,13 +41,8 @@
     <dimen name="exo_styled_progress_layout_height">48dp</dimen>
     <dimen name="exo_styled_progress_touch_target_height">48dp</dimen>
     <dimen name="exo_styled_progress_margin_bottom">52dp</dimen>
-
-    <dimen name="exo_bottom_bar_height">60dp</dimen>
-    <dimen name="exo_bottom_bar_padding_bottom">4dp</dimen>
-
-    <dimen name="exo_time_view_padding">10dp</dimen>
-    <dimen name="exo_time_view_width">170sp</dimen>
-    <dimen name="exo_time_view_height">48dp</dimen>
+    <dimen name="exo_styled_bottom_bar_height">60dp</dimen>
+    <dimen name="exo_styled_time_padding">10dp</dimen>
 
     <dimen name="exo_error_message_height">32dp</dimen>
     <dimen name="exo_error_message_margin_bottom">64dp</dimen>