Monitoring of signal strength is an important feature that is very common in Android phones. Today, this article will use examples to show how Android implements signal strength monitoring. Share it for your reference.
The specific implementation code is as follows:
TelephonyManager Tel;
MyPhoneStateListener MyListener;
/* Update the listener, and start it */
MyListener = new MyPhoneStateListener();
Tel = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
(MyListener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);
private class MyPhoneStateListener extends PhoneStateListener {
/* From the obtained signal strength, each tiome supplier has updates */
public void onSignalStrengthsChanged(SignalStrength signalStrength) {
(signalStrength);
(getApplicationContext(),"Go to Firstdroid!!! GSM Cinr = "+ (()),Toast.LENGTH_SHORT).show();
}
};
Interested friends can test the sample code in this article, hoping it will help you in your Android programming design.