What allows you to properly restore a user's state when an activity is restarted?

Given the definition below. how would you get access a TextView with an ID of text_home contained in thr layout file of a Fragment class?

IF the main thread is blocked for too long, the system displays the _ dialog?

How would you retrieve the value of a user's email from SharedPreferences while ensuring that the returned value is not null?

Why is it problematic to define sizes using pixels on Android?

You need to get a list of devices that are attached to your computer with USB debugging enable. Which command would execute using the Android Debug Bridge?

When attempting to build your project, what might the following error indicate? Conversion to Dalvik format filed: Unable to execute dex: method ID not in [0, 0xffff]: 65536

Given an APK named app-internal-debug.apk produced from the build process, which statement is likely to be true?

When should you use the androidTest directory to store your test classes?

What folder should you use for your app's launcher icons?

Why do developers often put app initialization code in the Application class?