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Practical 21 MAD

The document contains an XML layout for an Android application with a TextView displaying 'Broadcast Receiver'. It also includes two Java classes: MainActivity, which registers and unregisters a BroadcastReceiver for airplane mode changes, and AirplaneModeChangeReceiver, which shows a Toast message indicating whether airplane mode is on or off. The application responds to changes in airplane mode by displaying appropriate messages to the user.

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Deep Patel
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40 views2 pages

Practical 21 MAD

The document contains an XML layout for an Android application with a TextView displaying 'Broadcast Receiver'. It also includes two Java classes: MainActivity, which registers and unregisters a BroadcastReceiver for airplane mode changes, and AirplaneModeChangeReceiver, which shows a Toast message indicating whether airplane mode is on or off. The application responds to changes in airplane mode by displaying appropriate messages to the user.

Uploaded by

Deep Patel
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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XML :-

<?xml version="1.0" encoding="utf-8"?>


<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main"
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:text="Broadcast Receiver"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

1 Java Class code :-


package com.example.broadcastreceivrinandriod;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
AirplaneModeChangeReceiver airplaneModeChangeReceiver = new AirplaneModeChangeReceiver();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
protected void onStart() {
super.onStart();
IntentFilter filter = new IntentFilter(Intent.ACTION_AIRPLANE_MODE_CHANGED);
registerReceiver(airplaneModeChangeReceiver, filter);
}
@Override
protected void onStop() {
super.onStop();
unregisterReceiver(airplaneModeChangeReceiver);
}
}2 Java Class code :-
package com.example.broadcastreceivrinandriod;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.provider.Settings;
import android.widget.Toast;

public class AirplaneModeChangeReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

if (isAirplaneModeOn(context.getApplicationContext())) {
Toast.makeText(context, "AirPlane mode is on", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(context, "AirPlane mode is off", Toast.LENGTH_LONG).show();
}
}

private static boolean isAirplaneModeOn(Context context) {


return Settings.System.getInt(context.getContentResolver(),
Settings.Global.AIRPLANE_MODE_ON, 0) != 0;
}
}
Output :-

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