check if app is executed by another

I want to know if my app was executed by another app

I tried several methods but I could not find a solution

I tried this but returns the same value please help me! Code:

public class MainActivity extends Activity {

    public static boolean isinint ;

@Override
    protected void onResume() {
        super.onResume();


        Intent intent = getIntent();
        if (intent!=null && intent.getType()!=null)  //check if any application has executed your app
        { isinint=true; 
        Toast.makeText(getApplicationContext(), "is:" +isinint, Toast.LENGTH_LONG) .show();
        }else {
            isinint=false; 
             Toast.makeText(getApplicationContext(), "is:" +isinint, Toast.LENGTH_LONG) .show();
        }
 }
 }