Android Fragment Life Cycle Questions.txt

gistfile1.txt

1. Which lifecycle method should we use if we want to do some work in our Fragment immediately after the Activity has been all setup.
Answer: onActivityCreated

2. Which lifecycle method is called when a Fragment is disassociated from its Activity.
Answer: onDetach

3. Fragments have all the same lifecycle methods as an Activity as well as five lifecycle methods of their own.
Answer: True

4. Which is the very first Fragment lifecycle method to be called when adding a Fragment for the first time?
Answer: onAttach

5. The Fragment back stack is just a list of FragmentTransactions.
Answer: True

6. What method do we use to add a FragmentTransaction to the back stack?
Answer: addToBackStack

7. Which method can we use to go back to a previous named back stack entry?
Answer: popBackStack(String name)

8. If your Activity is extending AppCompatActivity, which FragmentManager would be the best choice?
Answer: SupportFragmentManager

9. addToBackStack(String name) can be called with a null name.
Answer: True

10. When dealing with Fragments within Fragments which fragment manager should we use?
Answer: ChildFragmentManager

11. ViewPagers have tabs at the top by default.
Answer: False

12. How can data be passed from an Activity to a Fragment?
Answer: There are two ways: 1. Using the Bundle Object 2. Using the Fragment Object