参考
1.APP
private BluetoothAvrcpController mAvrcpController; List<BluetoothDevice> devices = mAvrcpController.getConnectedDevices(); for(BluetoothDevice device : devices) { mAvrcpController.sendPassThroughCmd(device, 68, BluetoothAvrcp.PASSTHROUGH_STATE_PRESS); mAvrcpController.sendPassThroughCmd(device, 68, BluetoothAvrcp.PASSTHROUGH_STATE_RELEASE); } 2.frameworks/base/core/java/android/bluetooth/BluetoothAvrcpController.java public void sendPassThroughCmd(BluetoothDevice device, int keyCode, int keyState) { mService.sendPassThroughCmd(device, keyCode, keyState); } 3.packages/apps/Bluetooth/src/com/android/bluetooth/avrcp/AvrcpControllerService.java private native boolean sendPassThroughCommandNative(byte[] address, int keyCode, int keyState); (1)public void sendPassThroughCmd(BluetoothDevice device, int keyCode, int keyState) { Message msg = mHandler.obtainMessage(MESSAGE_SEND_PASS_THROUGH_CMD, keyCode, keyState, device); mHandler.sendMessage(msg); } (2)private final class AvrcpMessageHandler extends Handler { public void handleMessage(Message msg) { switch (msg.what) { case MESSAGE_SEND_PASS_THROUGH_CMD: if (DBG) Log.v(TAG, "MESSAGE_SEND_PASS_THROUGH_CMD"); BluetoothDevice device = (BluetoothDevice)msg.obj; sendPassThroughCommandNative(getByteAddress(device), msg.arg1, msg.arg2); break; } } 4.packages/apps/Bluetooth/jni/com_android_bluetooth_avrcp_controller.cpp static jboolean sendPassThroughCommandNative(JNIEnv *env, jobject object, jbyteArray address, jint key_code, jint key_state) { sBluetoothAvrcpInterface->send_pass_through_cmd((bt_bdaddr_t *)addr,uint8_t)key_code, (uint8_t)key_state))!= BT_STATUS_SUCCESS); } 5.external/bluetooth/bluedroid/btif/src/btif_rc.c static bt_status_t send_passthrough_cmd(bt_bdaddr_t *bd_addr, uint8_t key_code, uint8_t key_state) { bt_status_t tran_status = get_transaction(&p_transaction); BTA_AvRemoteCmd(); }
