Turning Off Cell Radio When No Calls Are Received

I am trying to detect if any calls are presently being attended or the cell phone is ringing.If not, the cell radio should switch off.Since I am using telephony manager for the fir

Solution 1:

The reason you won't find it in the developer docs is that it is hidden. However, you may always find hidden methods in the Android Source Code.

Code reference: public boolean setRadioPower(boolean turnOn){}

If your phone is not rooted, or if you do not have system permission android.Manifest.permission.MODIFY_PHONE_STATE, you won't be able to access this API.

However, if you do have those permissions, you can easily achieve this using the following code:

ITelephonyiTelephony= ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE));
    try {
        iTelephony.setRadioPower(true);
    } catch (RemoteException e) {
        e.printStackTrace();
    }