[Catalyst] Fix restriction issue on sound settings

After ag/31443354, sliders on sound settings are not disabled when
"no_adjust_volume" restriction is set. The root cause is that
`SeekBarVolumizer.setSeekBar` updates the SeekBar enabled state.

Bug: 386162594
Flag: EXEMPT bugfix
Test: atest&manual
Change-Id: I5d37c9958a693a26717a8e2d9a62ec5ef225e28f

src/com/android/settings/notification/VolumeSeekBarPreference.java

@@ -47,7 +47,6 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
 
     private final InteractionJankMonitor mJankMonitor = InteractionJankMonitor.getInstance();
 
-    protected SeekBar mSeekBar;
     private int mStream;
     private SeekBarVolumizer mVolumizer;
     @VisibleForTesting
@@ -115,17 +114,20 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
 
     @Override
     public void onDetached() {
+        destroyVolumizer();
+        super.onDetached();
+    }
+
+    private void destroyVolumizer() {
         if (mVolumizer != null) {
             mVolumizer.stop();
             mVolumizer = null;
         }
-        super.onDetached();
     }
 
     @Override
     public void onBindViewHolder(PreferenceViewHolder view) {
         super.onBindViewHolder(view);
-        mSeekBar = (SeekBar) view.findViewById(com.android.internal.R.id.seekbar);
         mIconView = (ImageView) view.findViewById(com.android.internal.R.id.icon);
         mSuppressionTextView = (TextView) view.findViewById(R.id.suppression_text);
         mTitle = (TextView) view.findViewById(com.android.internal.R.id.title);
@@ -133,15 +135,20 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
     }
 
     protected void onBindViewHolder() {
-        boolean isEnabled = isEnabled();
-        mSeekBar.setEnabled(isEnabled);
-        if (mVolumizer == null) {
-            createSeekBarVolumizer();
+        if (isEnabled()) {
+            if (mVolumizer == null) {
+                createSeekBarVolumizer();
+            }
+            // note that setSeekBar will update enabled state!
+            mVolumizer.setSeekBar(mSeekBar);
+        } else {
+            // destroy volumizer to avoid updateSeekBar reset enabled state
+            destroyVolumizer();
+            mSeekBar.setEnabled(false);
         }
-        mVolumizer.setSeekBar(mSeekBar);
         updateIconView();
         updateSuppressionText();
-        if (isEnabled && mListener != null) {
+        if (mListener != null) {
             mListener.onUpdateMuteState();
         }
     }

src/com/android/settings/widget/SeekBarPreference.java

@@ -33,6 +33,7 @@ import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.SeekBar;
 import android.widget.SeekBar.OnSeekBarChangeListener;
 
+import androidx.annotation.VisibleForTesting;
 import androidx.core.content.res.TypedArrayUtils;
 import androidx.preference.PreferenceViewHolder;
 
@@ -59,7 +60,8 @@ public class SeekBarPreference extends RestrictedPreference
     private int mHapticFeedbackMode = HAPTIC_FEEDBACK_MODE_NONE;
     private int mDefaultProgress = -1;
 
-    private SeekBar mSeekBar;
+    @VisibleForTesting(otherwise = VisibleForTesting.PROTECTED)
+    public SeekBar mSeekBar;
     private boolean mShouldBlink;
     private int mAccessibilityRangeInfoType = AccessibilityNodeInfo.RangeInfo.RANGE_TYPE_INT;
     private CharSequence mOverrideSeekBarStateDescription;