| /* |
| * 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.NonNull; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SdkConstant; |
| import android.annotation.SuppressLint; |
| import android.annotation.SystemApi; |
| import android.bluetooth.annotations.RequiresBluetoothConnectPermission; |
| import android.compat.annotation.UnsupportedAppUsage; |
| import android.content.AttributionSource; |
| import android.content.Context; |
| import android.os.Build; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Public API for controlling the Bluetooth Pbap Service. This includes Bluetooth Phone book Access |
| * profile. BluetoothPbap is a proxy object for controlling the Bluetooth Pbap Service via IPC. |
| * |
| * <p>Creating a BluetoothPbap object will create a binding with the BluetoothPbap service. Users of |
| * this object should call close() when they are finished with the BluetoothPbap, so that this proxy |
| * object can unbind from the service. |
| * |
| * <p>This BluetoothPbap object is not immediately bound to the BluetoothPbap service. Use the |
| * ServiceListener interface to obtain a notification when it is bound, this is especially important |
| * if you wish to immediately call methods on BluetoothPbap after construction. |
| * |
| * <p>To get an instance of the BluetoothPbap class, you can call {@link |
| * BluetoothAdapter#getProfileProxy(Context, ServiceListener, int)} with the final param being |
| * {@link BluetoothProfile#PBAP}. The ServiceListener should be able to get the instance of |
| * BluetoothPbap in {@link android.bluetooth.BluetoothProfile.ServiceListener#onServiceConnected}. |
| * |
| * <p>Android only supports one connected Bluetooth Pce at a time. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public class BluetoothPbap implements BluetoothProfile { |
| |
| private static final String TAG = "BluetoothPbap"; |
| private static final boolean DBG = false; |
| |
| /** |
| * Intent used to broadcast the change in connection state of the PBAP profile. |
| * |
| * <p>This intent will have 3 extras: |
| * |
| * <ul> |
| * <li>{@link BluetoothProfile#EXTRA_STATE} - The current state of the profile. |
| * <li>{@link BluetoothProfile#EXTRA_PREVIOUS_STATE}- The previous state of the profile. |
| * <li>{@link BluetoothDevice#EXTRA_DEVICE} - The remote device. |
| * </ul> |
| * |
| * <p>{@link BluetoothProfile#EXTRA_STATE} or {@link BluetoothProfile#EXTRA_PREVIOUS_STATE} can |
| * be any of {@link BluetoothProfile#STATE_DISCONNECTED}, {@link |
| * BluetoothProfile#STATE_CONNECTING}, {@link BluetoothProfile#STATE_CONNECTED}, {@link |
| * BluetoothProfile#STATE_DISCONNECTING}. |
| * |
| * @hide |
| */ |
| @SuppressLint("ActionValue") |
| @SystemApi |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| @SdkConstant(SdkConstant.SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_CONNECTION_STATE_CHANGED = |
| "android.bluetooth.pbap.profile.action.CONNECTION_STATE_CHANGED"; |
| |
| private final AttributionSource mAttributionSource; |
| |
| /** @hide */ |
| public static final int RESULT_FAILURE = 0; |
| |
| /** @hide */ |
| public static final int RESULT_SUCCESS = 1; |
| |
| /** |
| * Connection canceled before completion. |
| * |
| * @hide |
| */ |
| public static final int RESULT_CANCELED = 2; |
| |
| private BluetoothAdapter mAdapter; |
| |
| private IBluetoothPbap mService; |
| |
| /** |
| * Create a BluetoothPbap proxy object. |
| * |
| * @hide |
| */ |
| public BluetoothPbap(Context context, BluetoothAdapter adapter) { |
| mAdapter = adapter; |
| mAttributionSource = adapter.getAttributionSource(); |
| mService = null; |
| } |
| |
| /** @hide */ |
| @Override |
| public void onServiceConnected(IBinder service) { |
| mService = IBluetoothPbap.Stub.asInterface(service); |
| } |
| |
| /** @hide */ |
| @Override |
| public void onServiceDisconnected() { |
| mService = null; |
| } |
| |
| private IBluetoothPbap getService() { |
| return mService; |
| } |
| |
| /** @hide */ |
| @Override |
| public BluetoothAdapter getAdapter() { |
| return mAdapter; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @hide |
| */ |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT) |
| public List<BluetoothDevice> getConnectedDevices() { |
| log("getConnectedDevices()"); |
| final IBluetoothPbap service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| return Collections.emptyList(); |
| } |
| try { |
| return Attributable.setAttributionSource( |
| service.getConnectedDevices(mAttributionSource), mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| return Collections.emptyList(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @hide |
| */ |
| @SystemApi |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public @BtProfileState int getConnectionState(@NonNull BluetoothDevice device) { |
| log("getConnectionState: device=" + device); |
| try { |
| final IBluetoothPbap service = getService(); |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| return service.getConnectionState(device, mAttributionSource); |
| } |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| } |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @hide |
| */ |
| @Override |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT) |
| public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) { |
| log("getDevicesMatchingConnectionStates: states=" + Arrays.toString(states)); |
| final IBluetoothPbap service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| return Collections.emptyList(); |
| } |
| try { |
| return Attributable.setAttributionSource( |
| service.getDevicesMatchingConnectionStates(states, mAttributionSource), |
| mAttributionSource); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| return Collections.emptyList(); |
| } |
| |
| /** |
| * Set connection policy of the profile and tries to disconnect it if connectionPolicy is {@link |
| * BluetoothProfile#CONNECTION_POLICY_FORBIDDEN} |
| * |
| * <p>The device should already be paired. Connection policy can be one of: {@link |
| * BluetoothProfile#CONNECTION_POLICY_ALLOWED}, {@link |
| * BluetoothProfile#CONNECTION_POLICY_FORBIDDEN}, {@link |
| * BluetoothProfile#CONNECTION_POLICY_UNKNOWN} |
| * |
| * @param device Paired bluetooth device |
| * @param connectionPolicy is the connection policy to set to for this profile |
| * @return true if connectionPolicy is set, false on error |
| * @hide |
| */ |
| @SystemApi |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission( |
| allOf = { |
| android.Manifest.permission.BLUETOOTH_CONNECT, |
| android.Manifest.permission.BLUETOOTH_PRIVILEGED, |
| }) |
| public boolean setConnectionPolicy( |
| @NonNull BluetoothDevice device, @ConnectionPolicy int connectionPolicy) { |
| if (DBG) log("setConnectionPolicy(" + device + ", " + connectionPolicy + ")"); |
| try { |
| final IBluetoothPbap service = getService(); |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| if (connectionPolicy != BluetoothProfile.CONNECTION_POLICY_FORBIDDEN |
| && connectionPolicy != BluetoothProfile.CONNECTION_POLICY_ALLOWED) { |
| return false; |
| } |
| return service.setConnectionPolicy(device, connectionPolicy, mAttributionSource); |
| } |
| 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; |
| } |
| } |
| |
| /** |
| * Disconnects the current Pbap client (PCE). Currently this call blocks, it may soon be made |
| * asynchronous. Returns false if this proxy object is not currently connected to the Pbap |
| * service. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) |
| @RequiresBluetoothConnectPermission |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) |
| public boolean disconnect(BluetoothDevice device) { |
| log("disconnect()"); |
| final IBluetoothPbap service = getService(); |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| try { |
| service.disconnect(device, mAttributionSource); |
| return true; |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| return false; |
| } |
| |
| 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) { |
| if (DBG) { |
| Log.d(TAG, msg); |
| } |
| } |
| } |
