Broadcast-receiver-for-internet-connection-android

Check the internet connection with Broadcast receiver in Android

step1:

go to the AndroidManifest.xml and add this permissen.

  <uses-permission android:name="android.permission.INTERNET" />
  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

setep2:

in the MainActivity.java or your Activity file and define a boolean value,for example :

boolean bb = true;

step3:

create a privet class in MainActivity.java or your Activity file and class extend from BroadcastReceiver,after creating the class,press the Alt and Enter keys to Override the class methods.

step4:

add these codes to the class

    private class ConnectivityListener extends BroadcastReceiver{
     boolean isconnected;

     @Override
     public void onReceive(Context context, Intent intent) {
         ConnectivityManager connectivityManager =(ConnectivityManager)context.getSystemService(CONNECTIVITY_SERVICE);
         NetworkInfo networkInfo= connectivityManager.getActiveNetworkInfo();
         isconnected = networkInfo!=null && networkInfo.isConnectedOrConnecting();
         if (isconnected){
             bb=true;
         }else {
             bb=false;
         }

     }
 }

step5:

create a variable of the class ConnectivityListener,like this

public class MainActivity extends AppCompatActivity 
    boolean bb = true;

    private ConnectivityListener connectivityListener;

step6:

in the MainActivity.java or your Activity file add onstart and onstop methods,like this

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }

    @Override
    protected void onStart() {
        super.onStart();
    }

    @Override
    protected void onStop() {
        super.onStop();
    }
}

step7:

add these codes to the onstart and onstop methods:

    @Override
    protected void onStart() {
        super.onStart();
        connectivityListener = new ConnectivityListener();
        registerReceiver(connectivityListener,new IntentFilter("android.net.conn.CONNECTIVITY_CHANGE"));
    }

    @Override
    protected void onStop() {
        unregisterReceiver(connectivityListener);
        super.onStop();
    }

Extra tip

me for cheack internet connection create a Button and add set onclicklistener for Button.its codes are as follows

        imageView4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (bb){
                    startActivity(new Intent(MainActivity.this,MediaActivity.class));
                }else {
                    Toast.makeText(MainActivity.this, "please cheack your connection Internet", Toast.LENGTH_SHORT).show();
                }

            }
        });