Bluetooth intent permission denied

Question

I am trying to pass the intent mentioned below but i am getting the following exception below . Anyone have any idea about this????

Intent intent = new Intent(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
intent.putExtra(BluetoothProfile.EXTRA_PREVIOUS_STATE, prevState);
intent.putExtra(BluetoothProfile.EXTRA_STATE,BluetoothAdapter.STATE_CONNECTED);
intent.putExtra(BluetoothDevice.EXTRA_DEVICE, mdevice);
sendBroadcast(intent);

java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.bluetooth.headset.profile.action.CONNECTION_STATE_CHANGED from pid=10459, uid=10126

Answer 1

您是否在清单中添加了权限？

<uses-permission android:name="android.permission.BLUETOOTH" />

Answer 2

ACTION_CONNECTION_STATE_CHANGED is a protected intent which can and should only be broadcast by Android. You cannot broadcast protected intents.

This is mainly to protect recievers of this intent from recieving spurious intents from apps that cannot change the state of Bluetooth headset.

Why do you want to send this intent when you have not changed the state?

Answer 3

Did you add

<uses-permission android:name="android.permission.BLUETOOTH" />

in your manifest ?