Merge "Make SeekBar 1dp tall when disabled" into rvc-dev am: 6a75f1332f am: 32026857ab

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11936020

Change-Id: Id0569aba95aea3e853f8e13b1c97ae2026f7c38a

packages/SystemUI/res/layout/media_view.xml

@@ -146,7 +146,7 @@
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:clickable="true"
-        android:maxHeight="3dp"
+        android:maxHeight="@dimen/qs_media_enabled_seekbar_height"
         android:paddingTop="16dp"
         android:paddingBottom="16dp"
         android:thumbTint="@color/media_primary_text"

packages/SystemUI/res/values/dimens.xml

@@ -1274,6 +1274,8 @@
     <dimen name="qs_seamless_fallback_end_margin">16dp</dimen>
     <dimen name="qqs_media_spacing">16dp</dimen>
     <dimen name="qs_footer_horizontal_margin">22dp</dimen>
+    <dimen name="qs_media_disabled_seekbar_height">1dp</dimen>
+    <dimen name="qs_media_enabled_seekbar_height">3dp</dimen>
 
     <dimen name="magnification_border_size">5dp</dimen>
     <dimen name="magnification_frame_move_short">5dp</dimen>

packages/SystemUI/src/com/android/systemui/media/SeekBarObserver.kt

@@ -19,6 +19,7 @@ package com.android.systemui.media
 import android.text.format.DateUtils
 import androidx.annotation.UiThread
 import androidx.lifecycle.Observer
+import com.android.systemui.R
 
 /**
  * Observer for changes from SeekBarViewModel.
@@ -27,11 +28,20 @@ import androidx.lifecycle.Observer
  */
 class SeekBarObserver(private val holder: PlayerViewHolder) : Observer<SeekBarViewModel.Progress> {
 
+    val seekBarDefaultMaxHeight = holder.seekBar.context.resources
+        .getDimensionPixelSize(R.dimen.qs_media_enabled_seekbar_height)
+    val seekBarDisabledHeight = holder.seekBar.context.resources
+        .getDimensionPixelSize(R.dimen.qs_media_disabled_seekbar_height)
+
     /** Updates seek bar views when the data model changes. */
     @UiThread
     override fun onChanged(data: SeekBarViewModel.Progress) {
+        val previouslyEnabled = holder.seekBar.isEnabled
         if (!data.enabled) {
             holder.seekBar.setEnabled(false)
+            if (previouslyEnabled) {
+                holder.seekBar.maxHeight = seekBarDisabledHeight
+            }
             holder.seekBar.getThumb().setAlpha(0)
             holder.seekBar.setProgress(0)
             holder.elapsedTimeView.setText("")
@@ -42,6 +52,14 @@ class SeekBarObserver(private val holder: PlayerViewHolder) : Observer<SeekBarVi
         holder.seekBar.getThumb().setAlpha(if (data.seekAvailable) 255 else 0)
         holder.seekBar.setEnabled(data.seekAvailable)
 
+        if (previouslyEnabled != holder.seekBar.isEnabled) {
+            holder.seekBar.maxHeight = if (holder.seekBar.isEnabled) {
+                seekBarDefaultMaxHeight
+            } else {
+                seekBarDisabledHeight
+            }
+        }
+
         data.elapsedTime?.let {
             holder.seekBar.setProgress(it)
             holder.elapsedTimeView.setText(DateUtils.formatElapsedTime(