Adding support for Absolute Volume (4487d4a7) · Commits · e / os / android_packages_modules_Bluetooth

framework/java/android/bluetooth/BluetoothA2dp.java

+60 −0

Original line number	Diff line number	Diff line
		@@ -387,6 +387,66 @@ public final class BluetoothA2dp implements BluetoothProfile {
		return BluetoothProfile.PRIORITY_OFF;
		}

		/**
		* Checks if Avrcp device supports the absolute volume feature.
		*
		* @return true if device supports absolute volume
		* @hide
		*/
		public boolean isAvrcpAbsoluteVolumeSupported() {
		if (DBG) Log.d(TAG, "isAvrcpAbsoluteVolumeSupported");
		if (mService != null && isEnabled()) {
		try {
		return mService.isAvrcpAbsoluteVolumeSupported();
		} catch (RemoteException e) {
		Log.e(TAG, "Error talking to BT service in isAvrcpAbsoluteVolumeSupported()", e);
		return false;
		}
		}
		if (mService == null) Log.w(TAG, "Proxy not attached to service");
		return false;
		}

		/**
		* Tells remote device to adjust volume. Only if absolute volume is supported.
		*
		* @param direction 1 to increase volume, or -1 to decrease volume
		* @hide
		*/
		public void adjustAvrcpAbsoluteVolume(int direction) {
		if (DBG) Log.d(TAG, "adjustAvrcpAbsoluteVolume");
		if (mService != null && isEnabled()) {
		try {
		mService.adjustAvrcpAbsoluteVolume(direction);
		return;
		} catch (RemoteException e) {
		Log.e(TAG, "Error talking to BT service in adjustAvrcpAbsoluteVolume()", e);
		return;
		}
		}
		if (mService == null) Log.w(TAG, "Proxy not attached to service");
		}

		/**
		* Tells remote device to set an absolute volume. Only if absolute volume is supported
		*
		* @param volume Absolute volume to be set on AVRCP side
		* @hide
		*/
		public void setAvrcpAbsoluteVolume(int volume) {
		if (DBG) Log.d(TAG, "setAvrcpAbsoluteVolume");
		if (mService != null && isEnabled()) {
		try {
		mService.setAvrcpAbsoluteVolume(volume);
		return;
		} catch (RemoteException e) {
		Log.e(TAG, "Error talking to BT service in setAvrcpAbsoluteVolume()", e);
		return;
		}
		}
		if (mService == null) Log.w(TAG, "Proxy not attached to service");
		}

		/**
		* Check if A2DP profile is streaming music.
		*

framework/java/android/bluetooth/IBluetoothA2dp.aidl

+3 −0

Original line number	Diff line number	Diff line
		@@ -32,5 +32,8 @@ interface IBluetoothA2dp {
		int getConnectionState(in BluetoothDevice device);
		boolean setPriority(in BluetoothDevice device, int priority);
		int getPriority(in BluetoothDevice device);
		boolean isAvrcpAbsoluteVolumeSupported();
		oneway void adjustAvrcpAbsoluteVolume(int direction);
		oneway void setAvrcpAbsoluteVolume(int volume);
		boolean isA2dpPlaying(in BluetoothDevice device);
		}