How to get current foreground activity context in Android?

This example demonstrate about How to get current foreground activity context in Android

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to src/MyApp.java

package app.tutorialspoint.com.sample ;
import android.app.Activity ;
import android.app.Application ;
public class MyApp extends Application {
   private Activity mCurrentActivity = null;
   @Override
   public void onCreate () {
      super .onCreate() ;
   }
   public Activity getCurrentActivity () {
      return mCurrentActivity ;
   }
   public void setCurrentActivity (Activity mCurrentActivity) {
      this . mCurrentActivity = mCurrentActivity ;
   }
}

Step 3 − Add the following code to src/MyBaseActivity.java

package app.tutorialspoint.com.sample ;
import android.app.Activity ;
import android.os.Bundle ;
import android.support.v7.app.AppCompatActivity ;
public class MyBaseActivity extends AppCompatActivity {
   protected MyApp mMyApp ;
   public void onCreate (Bundle savedInstanceState) {
      super .onCreate(savedInstanceState) ;
      mMyApp = (MyApp) this .getApplicationContext() ;
   }
   protected void onResume () {
      super .onResume() ;
      mMyApp .setCurrentActivity( this ) ;
   }
   protected void onPause () {
      clearReferences() ;
      super .onPause() ;
   }
   protected void onDestroy () {
      clearReferences() ;
      super .onDestroy() ;
   }
   private void clearReferences () {
      Activity currActivity = mMyApp .getCurrentActivity() ;
      if ( this .equals(currActivity))
         mMyApp .setCurrentActivity( null ) ;
   }
}

Step 4 − Add the following code to src/MainActivity.java

package app.tutorialspoint.com.sample ;
import android.app.Activity ;
import android.support.v7.app.AppCompatActivity ;
import android.os.Bundle ;
public class MainActivity extends AppCompatActivity {
   @Override
   protected void onCreate (Bundle savedInstanceState) {
      super .onCreate(savedInstanceState) ;
      setContentView(R.layout. activity_main ) ;
      Activity currentActivity = ((MyApp)
      getApplicationContext()).getCurrentActivity() ;
   }
}

Step 5 − Add the following code to androidManifest.xml

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