Is it possible to reverse engineer an android application using the apk file alone without external app resources?

In order to get paired Bluetooth device list you need to :

What should you extend in case you need to apply a portion of code to your entire application?

if you want to access list of paired Bluetooth devices on Android, what should you do ?

Which is NOT a subclass of TextView?

How to enable overlay mode On API level 11 or higher, to create a custom theme for your activity.

Correct syntax of zipalign command for confirming the alignment of existing.apk?

Correct syntax of monkeyrunnner command used in Android Studio?

Which is the general syntax of the 'am instrument' command used in Android Studio?

Which Android classes provides JUnit framework, Android-specif‌ic setup, teardown, and helper methods?

Which command is passed to the dumpsys tool so that it provides an output in logcat with performance information that is related to the frames of animation, which occur during the recording phase?