hello i want to make an app that will bell when the charging status is above 90 percent , using BroadCastReciever . i decided to first make an app that will play ring when the Intent.ACTION_CHARGER_CONNECTED and Intent.ACTION_DISCONNECTED . app will make start ring and after chargeer disconnected it will stop ring
i have tried to stop it using stop() method i have also tried something similiar like this
mp.reset();
mp.prepare();
mp.stop();
mp.release();
mp = null;
of course in try catch block .
here i have code where you can understand what i am doing
MainActivity.java
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends AppCompatActivity {
private CustomReciever mReciever = new CustomReciever();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// intent filetr provide action that a app can get or want to get or listening for broadcast .
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_POWER_CONNECTED);
filter.addAction(Intent.ACTION_POWER_DISCONNECTED);
// here we are registering our receiver
this.registerReceiver(mReciever, filter);
}
@Override
protected void onDestroy() {
// here we are unregistering our receiver
unregisterReceiver(mReciever);
super.onDestroy();
}
}
CustomReciever
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.widget.Toast;
public class CustomReciever extends BroadcastReceiver {
MediaPlayer mp;
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action != null) {
String toast = "action is unknown";
// initializing media player
mp = MediaPlayer.create(context, R.raw.full_charge);
switch (action) {
case Intent.ACTION_POWER_CONNECTED: {
toast = "power is connected";
startMP(context);
}
break;
case Intent.ACTION_POWER_DISCONNECTED: {
toast = "power is disconnected";
stopMP(context);
}
break;
}
Toast.makeText(context, toast, Toast.LENGTH_SHORT).show();
}
}
private void startMP(final Context context){
if(mp == null){
mp = MediaPlayer.create( context, R.raw.full_charge);
mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mediaPlayer) {
stopMP(context);
}
});
}
mp.start();
mp.setLooping(true);
}
private void stopMP(Context context) {
if(mp != null) {
mp.release();
mp = null;
Toast.makeText(context , "song is stopped " , Toast.LENGTH_SHORT).show();
}
}
}
In your CustomReceiver Code ,create object ofmediaplayer in first case
case Intent.ACTION_POWER_CONNECTED:
` @Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action != null) {
String toast = "action is unknown";
switch (action) {
case Intent.ACTION_POWER_CONNECTED: {
// initializing media player
mp = MediaPlayer.create(context, R.raw.full_charge);
toast = "power is connected";
startMP(context);
}
break;
case Intent.ACTION_POWER_DISCONNECTED: {
toast = "power is disconnected";
stopMP(context);
}
break;
}
Toast.makeText(context, toast, Toast.LENGTH_SHORT).show();
}
}`
Others code remain same as previous.Perfectly give the output.When disconnected power,music automatically gone off.