Merge "Cache weak reference for static context." into sc-dev am: f7d20b351f (abf3d253) · Commits · e / os / android_frameworks_base

media/java/android/media/AudioManager.java

+19 −14

Original line number	Diff line number	Diff line
		@@ -73,6 +73,7 @@ import com.android.internal.util.Preconditions;
		import java.io.IOException;
		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.lang.ref.WeakReference;
		import java.util.ArrayList;
		import java.util.Arrays;
		import java.util.HashMap;
		@@ -103,7 +104,7 @@ public class AudioManager {
		private static final AudioVolumeGroupChangeHandler sAudioAudioVolumeGroupChangedHandler =
		new AudioVolumeGroupChangeHandler();

		private static Context sContext;
		private static WeakReference<Context> sContext;

		/**
		* Broadcast intent, a hint for applications that audio is about to become
		@@ -800,7 +801,7 @@ public class AudioManager {
		} else {
		mOriginalContext = context;
		}
		sContext = context;
		sContext = new WeakReference<>(context);
		}

		@UnsupportedAppUsage
		@@ -7256,14 +7257,19 @@ public class AudioManager {
		*/
		public static boolean hasHapticChannels(@Nullable Context context, @NonNull Uri uri) {
		Objects.requireNonNull(uri);

		if (context != null) {
		return hasHapticChannelsImpl(context, uri);
		} else if (sContext != null) {
		}

		Context cachedContext = sContext.get();
		if (cachedContext != null) {
		if (DEBUG) {
		Log.d(TAG, "Try to use static context to query if having haptic channels");
		}
		return hasHapticChannelsImpl(sContext, uri);
		} else {
		return hasHapticChannelsImpl(cachedContext, uri);
		}

		// Try with audio service context, this may fail to get correct result.
		if (DEBUG) {
		Log.d(TAG, "Try to use audio service context to query if having haptic channels");
		@@ -7274,7 +7280,6 @@ public class AudioManager {
		throw e.rethrowFromSystemServer();
		}
		}
		}

		/**
		* Set whether or not there is an active RTT call.