Google Related Exams
Associate-Android-Developer Exam
What do you want from Room when you create a DAO method and annotate it with @Update?
Example:
@Dao
interface MyDao {
@Update
fun updateUsers(vararg users: User)
}
For example, suppose that in a XML file (res/menu/menu_main.xml as an example), where menu items are described, we have such item:
...
android:id="@+id/action_settings" android:orderInCategory="100" android:title="@string/menu_action_settings" app:showAsAction="never" /> ... Attribute “app:showAsAction” shows when and how this item should appear as an action item in the app bar. What value “never” in this attribute means?
For example, our preferences.xml file was added by addPreferencesFromResource (R.xml.preferences). Our preferences.xml file contains such item:
android:title="@string/pref_sort_title" android:summary="@string/pref_sort_summary" android:dialogTitle="@string/pref_sort_dialog_title" android:entries="@array/sort_oder" android:entryValues="@array/sort_oder_value" android:defaultValue="@string/pref_default_sort_value" app:iconSpaceReserved="false" /> In our Fragment, we can dynamically get current notification preference value in this way: