| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.bluetooth; |
| |
| import android.Manifest; |
| import android.annotation.Nullable; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SdkConstant; |
| import android.annotation.SdkConstant.SdkConstantType; |
| import android.annotation.UnsupportedAppUsage; |
| import android.content.Context; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.IBinder; |
| import android.os.ParcelUuid; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| |
| /** |
| * This class provides the public APIs to control the Bluetooth A2DP |
| * profile. |
| * |
| * <p>BluetoothA2dp is a proxy object for controlling the Bluetooth A2DP |
| * Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get |
| * the BluetoothA2dp proxy object. |
| * |
| * <p> Android only supports one connected Bluetooth A2dp device at a time. |
| * Each method is protected with its appropriate permission. |
| */ |
| public final class BluetoothA2dp implements BluetoothProfile { |
| private static final String TAG = "BluetoothA2dp"; |
| private static final boolean DBG = true; |
| private static final boolean VDBG = false; |
| |
| /** |
| * Intent used to broadcast the change in connection state of the A2DP |
| * profile. |
| * |
| * <p>This intent will have 3 extras: |
| * <ul> |
| * <li> {@link #EXTRA_STATE} - The current state of the profile. </li> |
| * <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.</li> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li> |
| * </ul> |
| * |
| * <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of |
| * {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, |
| * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| * receive. |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_CONNECTION_STATE_CHANGED = |
| "android.bluetooth.a2dp.profile.action.CONNECTION_STATE_CHANGED"; |
| |
| /** |
| * Intent used to broadcast the change in the Playing state of the A2DP |
| * profile. |
| * |
| * <p>This intent will have 3 extras: |
| * <ul> |
| * <li> {@link #EXTRA_STATE} - The current state of the profile. </li> |
| * <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile. </li> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li> |
| * </ul> |
| * |
| * <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of |
| * {@link #STATE_PLAYING}, {@link #STATE_NOT_PLAYING}, |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| * receive. |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_PLAYING_STATE_CHANGED = |
| "android.bluetooth.a2dp.profile.action.PLAYING_STATE_CHANGED"; |
| |
| /** @hide */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_AVRCP_CONNECTION_STATE_CHANGED = |
| "android.bluetooth.a2dp.profile.action.AVRCP_CONNECTION_STATE_CHANGED"; |
| |
| /** |
| * Intent used to broadcast the selection of a connected device as active. |
| * |
| * <p>This intent will have one extra: |
| * <ul> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. It can |
| * be null if no device is active. </li> |
| * </ul> |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| * receive. |
| * |
| * @hide |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| @UnsupportedAppUsage |
| public static final String ACTION_ACTIVE_DEVICE_CHANGED = |
| "android.bluetooth.a2dp.profile.action.ACTIVE_DEVICE_CHANGED"; |
| |
| /** |
| * Intent used to broadcast the change in the Audio Codec state of the |
| * A2DP Source profile. |
| * |
| * <p>This intent will have 2 extras: |
| * <ul> |
| * <li> {@link BluetoothCodecStatus#EXTRA_CODEC_STATUS} - The codec status. </li> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device if the device is currently |
| * connected, otherwise it is not included.</li> |
| * </ul> |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| * receive. |
| * |
| * @hide |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| @UnsupportedAppUsage |
| public static final String ACTION_CODEC_CONFIG_CHANGED = |
| "android.bluetooth.a2dp.profile.action.CODEC_CONFIG_CHANGED"; |
| |
| /** |
| * A2DP sink device is streaming music. This state can be one of |
| * {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of |
| * {@link #ACTION_PLAYING_STATE_CHANGED} intent. |
| */ |
| public static final int STATE_PLAYING = 10; |
| |
| /** |
| * A2DP sink device is NOT streaming music. This state can be one of |
| * {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of |
| * {@link #ACTION_PLAYING_STATE_CHANGED} intent. |
| */ |
| public static final int STATE_NOT_PLAYING = 11; |
| |
| /** |
| * We don't have a stored preference for whether or not the given A2DP sink device supports |
| * optional codecs. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public static final int OPTIONAL_CODECS_SUPPORT_UNKNOWN = -1; |
| |
| /** |
| * The given A2DP sink device does not support optional codecs. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public static final int OPTIONAL_CODECS_NOT_SUPPORTED = 0; |
| |
| /** |
| * The given A2DP sink device does support optional codecs. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public static final int OPTIONAL_CODECS_SUPPORTED = 1; |
| |
| /** |
| * We don't have a stored preference for whether optional codecs should be enabled or disabled |
| * for the given A2DP device. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public static final int OPTIONAL_CODECS_PREF_UNKNOWN = -1; |
| |
| /** |
| * Optional codecs should be disabled for the given A2DP device. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public static final int OPTIONAL_CODECS_PREF_DISABLED = 0; |
| |
| /** |
| * Optional codecs should be enabled for the given A2DP device. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public static final int OPTIONAL_CODECS_PREF_ENABLED = 1; |
| |
| private BluetoothAdapter mAdapter; |
| private final BluetoothProfileConnector<IBluetoothA2dp> mProfileConnector = |
| new BluetoothProfileConnector(this, BluetoothProfile.A2DP, "BluetoothA2dp", |
| IBluetoothA2dp.class.getName()) { |
| @Override |
| public IBluetoothA2dp getServiceInterface(IBinder service) { |
| return IBluetoothA2dp.Stub.asInterface(Binder.allowBlocking(service)); |
| } |
| }; |
| |
| /** |
| * Create a BluetoothA2dp proxy object for interacting with the local |
| * Bluetooth A2DP service. |
| */ |
| /*package*/ BluetoothA2dp(Context context, ServiceListener listener) { |
| mAdapter = BluetoothAdapter.getDefaultAdapter(); |
| mProfileConnector.connect(context, listener); |
| } |
| |
| @UnsupportedAppUsage |
| /*package*/ void close() { |
| mProfileConnector.disconnect(); |
| } |
| |
| private IBluetoothA2dp getService() { |
| return mProfileConnector.getService(); |
| } |
| |
| @Override |
| public void finalize() { |
| // The empty finalize needs to be kept or the |
| // cts signature tests would fail. |
| } |
| |
| /** |
| * Initiate connection to a profile of the remote Bluetooth device. |
| * |
| * <p> This API returns false in scenarios like the profile on the |
| * device is already connected or Bluetooth is not turned on. |
| * When this API returns true, it is guaranteed that |
| * connection state intent for the profile will be broadcasted with |
| * the state. Users can get the connection state of the profile |
| * from this intent. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device Remote Bluetooth Device |
| * @return false on immediate error, true otherwise |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public boolean connect(BluetoothDevice device) { |
| if (DBG) log("connect(" + device + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| return service.connect(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| |
| /** |
| * Initiate disconnection from a profile |
| * |
| * <p> This API will return false in scenarios like the profile on the |
| * Bluetooth device is not in connected state etc. When this API returns, |
| * true, it is guaranteed that the connection state change |
| * intent will be broadcasted with the state. Users can get the |
| * disconnection state of the profile from this intent. |
| * |
| * <p> If the disconnection is initiated by a remote device, the state |
| * will transition from {@link #STATE_CONNECTED} to |
| * {@link #STATE_DISCONNECTED}. If the disconnect is initiated by the |
| * host (local) device the state will transition from |
| * {@link #STATE_CONNECTED} to state {@link #STATE_DISCONNECTING} to |
| * state {@link #STATE_DISCONNECTED}. The transition to |
| * {@link #STATE_DISCONNECTING} can be used to distinguish between the |
| * two scenarios. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device Remote Bluetooth Device |
| * @return false on immediate error, true otherwise |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public boolean disconnect(BluetoothDevice device) { |
| if (DBG) log("disconnect(" + device + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| return service.disconnect(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public List<BluetoothDevice> getConnectedDevices() { |
| if (VDBG) log("getConnectedDevices()"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| return service.getConnectedDevices(); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return new ArrayList<BluetoothDevice>(); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) { |
| if (VDBG) log("getDevicesMatchingStates()"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| return service.getDevicesMatchingConnectionStates(states); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return new ArrayList<BluetoothDevice>(); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public @BtProfileState int getConnectionState(BluetoothDevice device) { |
| if (VDBG) log("getState(" + device + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() |
| && isValidDevice(device)) { |
| return service.getConnectionState(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| } |
| |
| /** |
| * Select a connected device as active. |
| * |
| * The active device selection is per profile. An active device's |
| * purpose is profile-specific. For example, A2DP audio streaming |
| * is to the active A2DP Sink device. If a remote device is not |
| * connected, it cannot be selected as active. |
| * |
| * <p> This API returns false in scenarios like the profile on the |
| * device is not connected or Bluetooth is not turned on. |
| * When this API returns true, it is guaranteed that the |
| * {@link #ACTION_ACTIVE_DEVICE_CHANGED} intent will be broadcasted |
| * with the active device. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device the remote Bluetooth device. Could be null to clear |
| * the active device and stop streaming audio to a Bluetooth device. |
| * @return false on immediate error, true otherwise |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public boolean setActiveDevice(@Nullable BluetoothDevice device) { |
| if (DBG) log("setActiveDevice(" + device + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() |
| && ((device == null) || isValidDevice(device))) { |
| return service.setActiveDevice(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| |
| /** |
| * Get the connected device that is active. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} |
| * permission. |
| * |
| * @return the connected device that is active or null if no device |
| * is active |
| * @hide |
| */ |
| @RequiresPermission(Manifest.permission.BLUETOOTH) |
| @Nullable |
| @UnsupportedAppUsage |
| public BluetoothDevice getActiveDevice() { |
| if (VDBG) log("getActiveDevice()"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| return service.getActiveDevice(); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return null; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return null; |
| } |
| } |
| |
| /** |
| * Set priority of the profile |
| * |
| * <p> The device should already be paired. |
| * Priority can be one of {@link #PRIORITY_ON} orgetBluetoothManager |
| * {@link #PRIORITY_OFF}, |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device Paired bluetooth device |
| * @param priority |
| * @return true if priority is set, false on error |
| * @hide |
| */ |
| public boolean setPriority(BluetoothDevice device, int priority) { |
| if (DBG) log("setPriority(" + device + ", " + priority + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() |
| && isValidDevice(device)) { |
| if (priority != BluetoothProfile.PRIORITY_OFF |
| && priority != BluetoothProfile.PRIORITY_ON) { |
| return false; |
| } |
| return service.setPriority(device, priority); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| |
| /** |
| * Get the priority of the profile. |
| * |
| * <p> The priority can be any of: |
| * {@link #PRIORITY_AUTO_CONNECT}, {@link #PRIORITY_OFF}, |
| * {@link #PRIORITY_ON}, {@link #PRIORITY_UNDEFINED} |
| * |
| * @param device Bluetooth device |
| * @return priority of the device |
| * @hide |
| */ |
| @RequiresPermission(Manifest.permission.BLUETOOTH) |
| @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023) |
| public int getPriority(BluetoothDevice device) { |
| if (VDBG) log("getPriority(" + device + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() |
| && isValidDevice(device)) { |
| return service.getPriority(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return BluetoothProfile.PRIORITY_OFF; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| 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"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| return service.isAvrcpAbsoluteVolumeSupported(); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error talking to BT service in isAvrcpAbsoluteVolumeSupported()", e); |
| return false; |
| } |
| } |
| |
| /** |
| * 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"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| service.setAvrcpAbsoluteVolume(volume); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error talking to BT service in setAvrcpAbsoluteVolume()", e); |
| } |
| } |
| |
| /** |
| * Check if A2DP profile is streaming music. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. |
| * |
| * @param device BluetoothDevice device |
| */ |
| public boolean isA2dpPlaying(BluetoothDevice device) { |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() |
| && isValidDevice(device)) { |
| return service.isA2dpPlaying(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| |
| /** |
| * This function checks if the remote device is an AVCRP |
| * target and thus whether we should send volume keys |
| * changes or not. |
| * |
| * @hide |
| */ |
| public boolean shouldSendVolumeKeys(BluetoothDevice device) { |
| if (isEnabled() && isValidDevice(device)) { |
| ParcelUuid[] uuids = device.getUuids(); |
| if (uuids == null) return false; |
| |
| for (ParcelUuid uuid : uuids) { |
| if (BluetoothUuid.isAvrcpTarget(uuid)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Gets the current codec status (configuration and capability). |
| * |
| * @param device the remote Bluetooth device. If null, use the current |
| * active A2DP Bluetooth device. |
| * @return the current codec status |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public @Nullable BluetoothCodecStatus getCodecStatus(BluetoothDevice device) { |
| if (DBG) Log.d(TAG, "getCodecStatus(" + device + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| return service.getCodecStatus(device); |
| } |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| } |
| return null; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error talking to BT service in getCodecStatus()", e); |
| return null; |
| } |
| } |
| |
| /** |
| * Sets the codec configuration preference. |
| * |
| * @param device the remote Bluetooth device. If null, use the current |
| * active A2DP Bluetooth device. |
| * @param codecConfig the codec configuration preference |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public void setCodecConfigPreference(BluetoothDevice device, |
| BluetoothCodecConfig codecConfig) { |
| if (DBG) Log.d(TAG, "setCodecConfigPreference(" + device + ")"); |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| service.setCodecConfigPreference(device, codecConfig); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error talking to BT service in setCodecConfigPreference()", e); |
| return; |
| } |
| } |
| |
| /** |
| * Enables the optional codecs. |
| * |
| * @param device the remote Bluetooth device. If null, use the currect |
| * active A2DP Bluetooth device. |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public void enableOptionalCodecs(BluetoothDevice device) { |
| if (DBG) Log.d(TAG, "enableOptionalCodecs(" + device + ")"); |
| enableDisableOptionalCodecs(device, true); |
| } |
| |
| /** |
| * Disables the optional codecs. |
| * |
| * @param device the remote Bluetooth device. If null, use the currect |
| * active A2DP Bluetooth device. |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public void disableOptionalCodecs(BluetoothDevice device) { |
| if (DBG) Log.d(TAG, "disableOptionalCodecs(" + device + ")"); |
| enableDisableOptionalCodecs(device, false); |
| } |
| |
| /** |
| * Enables or disables the optional codecs. |
| * |
| * @param device the remote Bluetooth device. If null, use the currect |
| * active A2DP Bluetooth device. |
| * @param enable if true, enable the optional codecs, other disable them |
| */ |
| private void enableDisableOptionalCodecs(BluetoothDevice device, boolean enable) { |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled()) { |
| if (enable) { |
| service.enableOptionalCodecs(device); |
| } else { |
| service.disableOptionalCodecs(device); |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error talking to BT service in enableDisableOptionalCodecs()", e); |
| return; |
| } |
| } |
| |
| /** |
| * Returns whether this device supports optional codecs. |
| * |
| * @param device The device to check |
| * @return one of OPTIONAL_CODECS_SUPPORT_UNKNOWN, OPTIONAL_CODECS_NOT_SUPPORTED, or |
| * OPTIONAL_CODECS_SUPPORTED. |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public int supportsOptionalCodecs(BluetoothDevice device) { |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| return service.supportsOptionalCodecs(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return OPTIONAL_CODECS_SUPPORT_UNKNOWN; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error talking to BT service in getSupportsOptionalCodecs()", e); |
| return OPTIONAL_CODECS_SUPPORT_UNKNOWN; |
| } |
| } |
| |
| /** |
| * Returns whether this device should have optional codecs enabled. |
| * |
| * @param device The device in question. |
| * @return one of OPTIONAL_CODECS_PREF_UNKNOWN, OPTIONAL_CODECS_PREF_ENABLED, or |
| * OPTIONAL_CODECS_PREF_DISABLED. |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public int getOptionalCodecsEnabled(BluetoothDevice device) { |
| try { |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| return service.getOptionalCodecsEnabled(device); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return OPTIONAL_CODECS_PREF_UNKNOWN; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error talking to BT service in getSupportsOptionalCodecs()", e); |
| return OPTIONAL_CODECS_PREF_UNKNOWN; |
| } |
| } |
| |
| /** |
| * Sets a persistent preference for whether a given device should have optional codecs enabled. |
| * |
| * @param device The device to set this preference for. |
| * @param value Whether the optional codecs should be enabled for this device. This should be |
| * one of OPTIONAL_CODECS_PREF_UNKNOWN, OPTIONAL_CODECS_PREF_ENABLED, or |
| * OPTIONAL_CODECS_PREF_DISABLED. |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public void setOptionalCodecsEnabled(BluetoothDevice device, int value) { |
| try { |
| if (value != BluetoothA2dp.OPTIONAL_CODECS_PREF_UNKNOWN |
| && value != BluetoothA2dp.OPTIONAL_CODECS_PREF_DISABLED |
| && value != BluetoothA2dp.OPTIONAL_CODECS_PREF_ENABLED) { |
| Log.e(TAG, "Invalid value passed to setOptionalCodecsEnabled: " + value); |
| return; |
| } |
| final IBluetoothA2dp service = getService(); |
| if (service != null && isEnabled() |
| && isValidDevice(device)) { |
| service.setOptionalCodecsEnabled(device, value); |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| return; |
| } |
| } |
| |
| /** |
| * Helper for converting a state to a string. |
| * |
| * For debug use only - strings are not internationalized. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023) |
| public static String stateToString(int state) { |
| switch (state) { |
| case STATE_DISCONNECTED: |
| return "disconnected"; |
| case STATE_CONNECTING: |
| return "connecting"; |
| case STATE_CONNECTED: |
| return "connected"; |
| case STATE_DISCONNECTING: |
| return "disconnecting"; |
| case STATE_PLAYING: |
| return "playing"; |
| case STATE_NOT_PLAYING: |
| return "not playing"; |
| default: |
| return "<unknown state " + state + ">"; |
| } |
| } |
| |
| private boolean isEnabled() { |
| if (mAdapter.getState() == BluetoothAdapter.STATE_ON) return true; |
| return false; |
| } |
| |
| private boolean isValidDevice(BluetoothDevice device) { |
| if (device == null) return false; |
| |
| if (BluetoothAdapter.checkBluetoothAddress(device.getAddress())) return true; |
| return false; |
| } |
| |
| private static void log(String msg) { |
| Log.d(TAG, msg); |
| } |
| } |
