I need to make sure my Android app works on all Android phones. How would I go about making sure that it works on all of them?
In my xml files I only use fill_parent and wrap_content and for layout I use LinearLayout. In my app I download some images from the web, save them to sdcard, and then display them. When an image is selected I play a video from the sdcard.
That’s my app. Will it look the same on all android phones?
If not, what should I do?
The only thing you can do to check this is test your application on as many devices/emulator-configurations as possible.
If you are concerned if you app will look good on all Smart-Phones and Tablets, you can create multiple Android-Emulators to test it.
Further information about how to optimize your app for multiple screens can be found in the docs.