QUESTION: 49 Topic: KOTLIN only

In a class PreferenceFragmentCompat. What method is called during onCreate(Bundle) to supply the preferences for this fragment. And where subclasses are expected to call setPreferenceScreen (PreferenceScreen) either directly or via helper methods such as addPreferencesFromResource (int)?

onCreateLayoutManager
onCreatePreferences
onCreateRecyclerView
onCreateView

Answer(s): B

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QUESTION: 50 Topic: KOTLIN only

In a class PreferenceFragmentCompat. As a convenience, this fragment implements a click listener for any preference in the current hierarchy. So, in what overridden method we can handle that a preference in the tree rooted at this PreferenceScreen has been clicked?

onCreateLayoutManager
onCreatePreferences
onCreateRecyclerView
onPreferenceTreeClick

Answer(s): D

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QUESTION: 51 Topic: KOTLIN only

SharedPreferences.Editor is an interface used for modifying values in a SharedPreferences object. All changes you make in an editor are batched, and not copied back to the original SharedPreferences until you call:

commit()
apply()
commit() or apply()

Answer(s): C

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QUESTION: 52 Topic: KOTLIN only

SharedPreferences.Editor is an interface used for modifying values in a SharedPreferences object. To mark in the editor that a preference value should be removed, which will be done in the actual preferences once commit() or apply() is called, what method in SharedPreferences.Editor should we use?

delete(String key)
clear()
remove(String key)
removeAll()

Answer(s): B

Explanation:

clear() method marks in the editor to remove ALL values from the preferences. Once commit is called, the only remaining preferences will be any that you have defined in this editor.
And no delete and removeAll method exists in SharedPreferences.Editor

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Free Associate Android Developer Exam Braindumps (page: 14)

QUESTION: 49 Topic: KOTLIN only

QUESTION: 50 Topic: KOTLIN only

QUESTION: 51 Topic: KOTLIN only

QUESTION: 52 Topic: KOTLIN only

Explanation:

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