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BluetoothAvrcpController.javaAPI DocAndroid 5.1 API9431Thu Mar 12 22:22:10 GMT 2015android.bluetooth

BluetoothAvrcpController

public final class BluetoothAvrcpController extends Object implements BluetoothProfile
This class provides the public APIs to control the Bluetooth AVRCP Controller profile.

BluetoothAvrcpController is a proxy object for controlling the Bluetooth AVRCP Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get the BluetoothAvrcpController proxy object. {@hide}

Fields Summary
private static final String
TAG
private static final boolean
DBG
private static final boolean
VDBG
public static final String
ACTION_CONNECTION_STATE_CHANGED
Intent used to broadcast the change in connection state of the AVRCP Controller profile.

This intent will have 3 extras:

  • {@link #EXTRA_STATE} - The current state of the profile.
  • {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.
  • {@link BluetoothDevice#EXTRA_DEVICE} - The remote device.

{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}.

Requires {@link android.Manifest.permission#BLUETOOTH} permission to receive.

private android.content.Context
mContext
private ServiceListener
mServiceListener
private IBluetoothAvrcpController
mService
private BluetoothAdapter
mAdapter
private final IBluetoothStateChangeCallback
mBluetoothStateChangeCallback
private final android.content.ServiceConnection
mConnection
Constructors Summary
BluetoothAvrcpController(android.content.Context context, ServiceListener l)
Create a BluetoothAvrcpController proxy object for interacting with the local Bluetooth AVRCP service.


                      
    /*package*/     
        mContext = context;
        mServiceListener = l;
        mAdapter = BluetoothAdapter.getDefaultAdapter();
        IBluetoothManager mgr = mAdapter.getBluetoothManager();
        if (mgr != null) {
            try {
                mgr.registerStateChangeCallback(mBluetoothStateChangeCallback);
            } catch (RemoteException e) {
                Log.e(TAG,"",e);
            }
        }

        doBind();
Methods Summary
voidclose()

        mServiceListener = null;
        IBluetoothManager mgr = mAdapter.getBluetoothManager();
        if (mgr != null) {
            try {
                mgr.unregisterStateChangeCallback(mBluetoothStateChangeCallback);
            } catch (Exception e) {
                Log.e(TAG,"",e);
            }
        }

        synchronized (mConnection) {
            if (mService != null) {
                try {
                    mService = null;
                    mContext.unbindService(mConnection);
                } catch (Exception re) {
                    Log.e(TAG,"",re);
                }
            }
        }
booleandoBind()

        Intent intent = new Intent(IBluetoothAvrcpController.class.getName());
        ComponentName comp = intent.resolveSystemService(mContext.getPackageManager(), 0);
        intent.setComponent(comp);
        if (comp == null || !mContext.bindServiceAsUser(intent, mConnection, 0,
                android.os.Process.myUserHandle())) {
            Log.e(TAG, "Could not bind to Bluetooth AVRCP Controller Service with " + intent);
            return false;
        }
        return true;
public voidfinalize()

        close();
public java.util.ListgetConnectedDevices()
{@inheritDoc}

        if (VDBG) log("getConnectedDevices()");
        if (mService != null && isEnabled()) {
            try {
                return mService.getConnectedDevices();
            } catch (RemoteException e) {
                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));
                return new ArrayList<BluetoothDevice>();
            }
        }
        if (mService == null) Log.w(TAG, "Proxy not attached to service");
        return new ArrayList<BluetoothDevice>();
public intgetConnectionState(BluetoothDevice device)
{@inheritDoc}

        if (VDBG) log("getState(" + device + ")");
        if (mService != null && isEnabled()
            && isValidDevice(device)) {
            try {
                return mService.getConnectionState(device);
            } catch (RemoteException e) {
                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));
                return BluetoothProfile.STATE_DISCONNECTED;
            }
        }
        if (mService == null) Log.w(TAG, "Proxy not attached to service");
        return BluetoothProfile.STATE_DISCONNECTED;
public java.util.ListgetDevicesMatchingConnectionStates(int[] states)
{@inheritDoc}

        if (VDBG) log("getDevicesMatchingStates()");
        if (mService != null && isEnabled()) {
            try {
                return mService.getDevicesMatchingConnectionStates(states);
            } catch (RemoteException e) {
                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));
                return new ArrayList<BluetoothDevice>();
            }
        }
        if (mService == null) Log.w(TAG, "Proxy not attached to service");
        return new ArrayList<BluetoothDevice>();
private booleanisEnabled()


       
       if (mAdapter.getState() == BluetoothAdapter.STATE_ON) return true;
       return false;
private booleanisValidDevice(BluetoothDevice device)

       if (device == null) return false;

       if (BluetoothAdapter.checkBluetoothAddress(device.getAddress())) return true;
       return false;
private static voidlog(java.lang.String msg)

      Log.d(TAG, msg);
public voidsendPassThroughCmd(BluetoothDevice device, int keyCode, int keyState)

        if (DBG) Log.d(TAG, "sendPassThroughCmd");
        if (mService != null && isEnabled()) {
            try {
                mService.sendPassThroughCmd(device, keyCode, keyState);
                return;
            } catch (RemoteException e) {
                Log.e(TAG, "Error talking to BT service in sendPassThroughCmd()", e);
                return;
            }
        }
        if (mService == null) Log.w(TAG, "Proxy not attached to service");