I am trying to design one Abstract class and method in Android and call those methods by extending the class from my parent Activity class but I don't how to call my abstract method.
MyCode :
MainActivity.java
public class MainActivity extends MyActivity {
@Override
public void onTest() {
Log.d("MyLog", "onTest");
} }
MyActivity.java
public abstract class MyActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public abstract void onTest(); }
So this is the above code snippet , please let me know , how to use Abstract in Android because i have never done this before.
Here is an example which you can use to register and un-register ANY BroadcastReceiver
using an Abstract class:
BaseClass:
public abstract class BaseReceiverActivity extends AppCompatActivity{
private BroadCastReceiver receiver;
private IntentFilter filter;
public abstract BroadCastReceiver getReceiver();
public abstract IntentFilter getFilter();
@Override
public void onStart(){
super.onStart();
configureReceiver()
registerReceiver(receiver, filter);
}
@Override
public void onStop(){
super.onPause();
unregisterReceiver(receiver);
}
private void registerMyReceiver(){
registerReceiver(receiver, filter);
}
private void configureReceiver(){
receiver = getReceiver();
filter = getFilter();
}
}
Child class:
public class WifiScanner extends BaseReceiverActivity{
@Override
public void onCreate(Bundle sis){
super.onCreate(sis);
setContentView(R.layout.yourLayout);
}
@Override
public BroadCastReceiver getReceiver(){
return new YourReceiver();
}
@Override
public IntentFilter getFilter(){
return IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
}
}