How to show splash screen when app is in background on Android?

I have a Splash screen (couldn't avoid it, as well as for branding purposes) for my app.

I want to mask the UI and show the splash screen when it is in the background (like banking apps).

Should I override onPause () and onResume () for the view in MainActivity?

manifest:

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".SplashActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".MainActivity"
        android:label="@string/title_activity_main"
        android:theme="@style/AppTheme.NoActionBar"></activity>
</application>

      

        
        
        
      

    

Burst Activity: OnCreate ()

setContentView(R.layout.splash_layout);
new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            /* Create an Intent that will start the Main-Activity. */

            Intent intent = new Intent(this, MainActivity.class);
            startActivity(intent);
            finish();
        }
    }, SPLASH_DISPLAY_LENGTH);
}

      

        
        
        
      

    

MainActivity (): Just show layout with text and buttons

OnCreate ():

setContentView(R.layout.example_view);

      

        
        
        
      

    

Now that my application is in the background and when I click the Menu button to see the list of applications in my stack, I should see a splashview (xml file), not the deafult behavior and layout of the MainActivity.

One of the things I've tried is adding

getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,
                WindowManager.LayoutParams.FLAG_SECURE); 

      

        
        
        
      

    

which masks the app when it's in the background with a white screen, but I'm trying to show a popup view when the app is in the background.

I know all iOS Banking apps have this feature.

Edited :

If you see the Twitter app (Example) in the background, I want to mask the app view with a splash screen. Right now, using FLAG_SECURE helps me to mask the white screen, but I want to show the splash layout, not the white screen.

• If you see the image below from an iOS device - the DISCOVER app (example) masks the splash screen app, can this be done on Android ?