diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index b8d5314f770..558df202ff6 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -9,7 +9,7 @@
 *   Extractors:
     *   Support TS packets without PTS flag
         ([#9294](https://github.com/google/ExoPlayer/issues/9294)).
-*   Video
+*   Video:
     *   Request smaller decoder input buffers for Dolby Vision. This fixes an
         issue that could cause UHD Dolby Vision playbacks to fail on some
         devices, including Amazon Fire TV 4K.
@@ -18,6 +18,10 @@
         thrown from `Requirements.isInternetConnectivityValidated` on devices
         running Android 11
         ([#9002](https://github.com/google/ExoPlayer/issues/9002)).
+*   UI:
+    *   Use `defStyleAttr` when obtaining styled attributes in
+        `StyledPlayerView`, `PlayerView` and `PlayerControlView`
+        ([#9024](https://github.com/google/ExoPlayer/issues/9024)).
 *   Cast extension:
     *   Implement `CastPlayer.setPlaybackParameters(PlaybackParameters)` to
         support setting the playback speed
@@ -247,6 +251,11 @@
         ([#9183](https://github.com/google/ExoPlayer/issues/9183)).
     *   Allow the timeout to be customised via
         `RtspMediaSource.Factory.setTimeoutMs`.
+*   Downloads and caching:
+    *   Workaround platform issue that can cause a `SecurityException` to be
+        thrown from `Requirements.isInternetConnectivityValidated` on devices
+        running Android 11
+        ([#9002](https://github.com/google/ExoPlayer/issues/9002)).
 
 ### 2.14.1 (2021-06-11)
 
diff --git a/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerControlView.java b/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerControlView.java
index dd8a6d212f8..02e7174d6d1 100644
--- a/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerControlView.java
+++ b/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerControlView.java
@@ -377,7 +377,8 @@ public PlayerControlView(
       TypedArray a =
           context
               .getTheme()
-              .obtainStyledAttributes(playbackAttrs, R.styleable.PlayerControlView, 0, 0);
+              .obtainStyledAttributes(
+                  playbackAttrs, R.styleable.PlayerControlView, defStyleAttr, /* defStyleRes= */ 0);
       try {
         showTimeoutMs = a.getInt(R.styleable.PlayerControlView_show_timeout, showTimeoutMs);
         controllerLayoutId =
@@ -424,8 +425,8 @@ public PlayerControlView(
     if (customTimeBar != null) {
       timeBar = customTimeBar;
     } else if (timeBarPlaceholder != null) {
-      // Propagate attrs as timebarAttrs so that DefaultTimeBar's custom attributes are transferred,
-      // but standard attributes (e.g. background) are not.
+      // Propagate playbackAttrs as timebarAttrs so that DefaultTimeBar's custom attributes are
+      // transferred, but standard attributes (e.g. background) are not.
       DefaultTimeBar defaultTimeBar = new DefaultTimeBar(context, null, 0, playbackAttrs);
       defaultTimeBar.setId(R.id.exo_progress);
       defaultTimeBar.setLayoutParams(timeBarPlaceholder.getLayoutParams());
diff --git a/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerView.java b/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerView.java
index 530b81e138c..2619e9d0304 100644
--- a/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerView.java
+++ b/library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerView.java
@@ -367,7 +367,11 @@ public PlayerView(Context context, @Nullable AttributeSet attrs, int defStyleAtt
     boolean controllerHideDuringAds = true;
     int showBuffering = SHOW_BUFFERING_NEVER;
     if (attrs != null) {
-      TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.PlayerView, 0, 0);
+      TypedArray a =
+          context
+              .getTheme()
+              .obtainStyledAttributes(
+                  attrs, R.styleable.PlayerView, defStyleAttr, /* defStyleRes= */ 0);
       try {
         shutterColorSet = a.hasValue(R.styleable.PlayerView_shutter_background_color);
         shutterColor = a.getColor(R.styleable.PlayerView_shutter_background_color, shutterColor);
diff --git a/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java b/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java
index 0edfdee634b..830c85ec282 100644
--- a/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java
+++ b/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java
@@ -491,7 +491,11 @@ public StyledPlayerControlView(
       TypedArray a =
           context
               .getTheme()
-              .obtainStyledAttributes(playbackAttrs, R.styleable.StyledPlayerControlView, 0, 0);
+              .obtainStyledAttributes(
+                  playbackAttrs,
+                  R.styleable.StyledPlayerControlView,
+                  defStyleAttr,
+                  /* defStyleRes= */ 0);
       try {
         controllerLayoutId =
             a.getResourceId(
@@ -576,8 +580,8 @@ public StyledPlayerControlView(
     if (customTimeBar != null) {
       timeBar = customTimeBar;
     } else if (timeBarPlaceholder != null) {
-      // Propagate attrs as timebarAttrs so that DefaultTimeBar's custom attributes are transferred,
-      // but standard attributes (e.g. background) are not.
+      // Propagate playbackAttrs as timebarAttrs so that DefaultTimeBar's custom attributes are
+      // transferred, but standard attributes (e.g. background) are not.
       DefaultTimeBar defaultTimeBar =
           new DefaultTimeBar(context, null, 0, playbackAttrs, R.style.ExoStyledControls_TimeBar);
       defaultTimeBar.setId(R.id.exo_progress);
diff --git a/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerView.java b/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerView.java
index b5a2822c8db..8784e75aa39 100644
--- a/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerView.java
+++ b/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerView.java
@@ -369,7 +369,10 @@ public StyledPlayerView(Context context, @Nullable AttributeSet attrs, int defSt
     int showBuffering = SHOW_BUFFERING_NEVER;
     if (attrs != null) {
       TypedArray a =
-          context.getTheme().obtainStyledAttributes(attrs, R.styleable.StyledPlayerView, 0, 0);
+          context
+              .getTheme()
+              .obtainStyledAttributes(
+                  attrs, R.styleable.StyledPlayerView, defStyleAttr, /* defStyleRes= */ 0);
       try {
         shutterColorSet = a.hasValue(R.styleable.StyledPlayerView_shutter_background_color);
         shutterColor =