Android Apps Test Case Scenarios :

1. Go to settings, scroll down, tap on developer options, select dont keep activities. Then check the app. The data should come properly.

2. Change the orientation of the phone. Check the app. The data should come properly.

3. Switch off the internet connection. Check whether internet connection error is handled properly.

4. If the app uses device location, switch off the location settings and check whether it is properly handled in the app.

5. In the developer settings, switch on the gpu rendering screen. And then check the app. There should not be many layers of layouts in the app.

6. Check the app is installing properly or not.

7. Check the ANR error. It should not come anytime. Its the worst experience for the user.

8. The app should not force close.

9. All the ui components (Buttons, Sliders, Checkboxes etc ) should respond properly.

10. If you are on a certain screen, press home button, open the app again. It should land back to the same screen.

11. Functionality should work properly(business logic).