Demo:
1) MainActivity.java:
package
com.venky.broadcastreceiverdemo2;
import
android.app.Activity;
import
android.content.BroadcastReceiver;
import
android.content.Intent;
import
android.content.IntentFilter;
import
android.os.Bundle;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle
savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BroadcastReceiver bc = new
MyBroadCastReceiver();
registerReceiver(bc, new
IntentFilter(Intent.ACTION_BATTERY_CHANGED));
}
}
2) MyBroadCastReceiver.java:
package
com.venky.broadcastreceiverdemo2;
import
android.content.BroadcastReceiver;
import
android.content.Context;
import
android.content.Intent;
import
android.widget.Toast;
public class
MyBroadCastReceiver extends BroadcastReceiver {
@Override
public void
onReceive(Context context, Intent intent) {
// TODO
Auto-generated method stub
int batteryStatus =
intent.getIntExtra("level", 0);
Toast.makeText(context, "Battery
Status => " + batteryStatus+" %", 3000)
.show();
}
}
3) main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world"
/>
</RelativeLayout>
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