HFP: Add APIs for set and get active device (1/3)
1. Call BluetoothHeadset.setActiveDevice(BluetoothDevice device) to set
a connected HFP/HSP device as active.
2. Listen for BluetoothHeadset.ACTION_ACTIVE_DEVICE_CHANGED intent
that will contain the latest active device (in EXTRA_DEVICE field).
If the active device could not be changed, the EXTRA_DEVICE
field could be null.
3. If setActiveDevice() is NOT in-progress, BluetoothA2dp.getActiveDevice()
can be used. If setActiveDevice() is in-progress, the result is undefined.
4. BluetoothHeadset.setActiveDevice() could be called by some other parts of
the system, so interested parties should always listen for
BluetoothHeadset.ACTION_ACTIVE_DEVICE_CHANGED intents and prepared
for active device updates.
Bug: 68951996
Test: manual
Change-Id: I22ca639a04fed7bf17df59c405ddeda90dafb8ff
diff --git a/framework/java/android/bluetooth/BluetoothHeadset.java b/framework/java/android/bluetooth/BluetoothHeadset.java
index 838d315..55a6b4c 100644
--- a/framework/java/android/bluetooth/BluetoothHeadset.java
+++ b/framework/java/android/bluetooth/BluetoothHeadset.java
@@ -16,6 +16,7 @@
package android.bluetooth;
+import android.annotation.Nullable;
import android.annotation.RequiresPermission;
import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
@@ -93,6 +94,23 @@
public static final String ACTION_AUDIO_STATE_CHANGED =
"android.bluetooth.headset.profile.action.AUDIO_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)
+ public static final String ACTION_ACTIVE_DEVICE_CHANGED =
+ "android.bluetooth.headset.profile.action.ACTIVE_DEVICE_CHANGED";
/**
* Intent used to broadcast that the headset has posted a
@@ -983,6 +1001,76 @@
}
/**
+ * Select a connected device as active.
+ *
+ * The active device selection is per profile. An active device's
+ * purpose is profile-specific. For example, in HFP and HSP profiles,
+ * it is the device used for phone call audio. 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 Remote Bluetooth Device, could be null if phone call audio should not be
+ * streamed to a headset
+ * @return false on immediate error, true otherwise
+ * @hide
+ */
+ @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN)
+ public boolean setActiveDevice(@Nullable BluetoothDevice device) {
+ if (DBG) {
+ Log.d(TAG, "setActiveDevice: " + device);
+ }
+ final IBluetoothHeadset service = mService;
+ if (service != null && isEnabled() && (device == null || isValidDevice(device))) {
+ try {
+ return service.setActiveDevice(device);
+ } catch (RemoteException e) {
+ Log.e(TAG, Log.getStackTraceString(new Throwable()));
+ }
+ }
+ if (service == null) {
+ Log.w(TAG, "Proxy not attached to service");
+ }
+ 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(android.Manifest.permission.BLUETOOTH)
+ public BluetoothDevice getActiveDevice() {
+ if (VDBG) {
+ Log.d(TAG, "getActiveDevice");
+ }
+ final IBluetoothHeadset service = mService;
+ if (service != null && isEnabled()) {
+ try {
+ return service.getActiveDevice();
+ } catch (RemoteException e) {
+ Log.e(TAG, Log.getStackTraceString(new Throwable()));
+ }
+ }
+ if (service == null) {
+ Log.w(TAG, "Proxy not attached to service");
+ }
+ return null;
+ }
+
+ /**
* check if in-band ringing is supported for this platform.
*
* @return true if in-band ringing is supported false if in-band ringing is not supported