Bluetooth discovery without prompt in Android

Question

I am able to turn on/off Bluetooth without any prompt using the following code. It requires BLUETOOTH and BLUETOOTH_ADMIN permissions.

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Answer 1

Finally I have found a way to do this using reflection.

Method method;
try {
    method = bluetoothAdapter.getClass().getMethod("setScanMode", int.class, int.class);
    method.invoke(bluetoothAdapter,BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE,120);
    Log.e("invoke","method invoke successfully");
}
catch (Exception e){
    e.printStackTrace();
}

Warning: Above method is trying to invoke hidden method. So in future maybe it will not work.