Associate-Android-Developer 試験問題を無料オンラインアクセス

For example, our preferences.xml file was added by addPreferencesFromResource (R.xml.preferences). Our preferences.xml file contains such item:
<SwitchPreference android:id="@+id/notification" android:key="@string/pref_notification_key" android:title="@string/pref_notification_title" android:summary="@string/pref_notification_summary" android:defaultValue="@bool/pref_notification_default_value" app:iconSpaceReserved="false"/> In our Fragment, we can dynamically get current notification preference value in this way:

• A.val isNotificationOn = PreferenceManager.getSharedPreferences (context).getBoolean( context!!.getString(R.string.pref_notification_default_value), context!!.getString(R.string.pref_notification_key), )
• B.val isNotificationOn = PreferenceManager.getDefaultSharedPreferences (context).getBoolean( context!!.getString(R.string.pref_notification_key), context!!.resources.getBoolean(R.bool.pref_notification_default_value) )
• C.val isNotificationOn = PreferenceManager.getSharedPreferences (context).getBoolean( context!!.resources.getBoolean(R.bool.pref_notification_default_value), context!!.getString(R.string.pref_notification_key) )

Android Tests. You can use the childSelector() method to nest multiple UiSelector instances. For example, the following code example shows how your test might specify a search to find the first ListView in the currently displayed UI, then search within that ListView to find a UI element with the text property Apps.
What is the correct sample?

• A.UiObject appItem = device.findObject(new UiSelector()
  .className("android.widget.ListView")
  .instance(0)
  .childSelector(new UiSelector()
  .text("Apps")));
• B.UiObject appItem = device.findObject(new UiSelector()
  .className(ListView.class)
  .instance(1)
  .childSelector(new UiSelector()
  .text("Apps")));
• C.UiObject appItem = device.findObject(new UiSelector()
  .className("android.widget.ListView")
  .instance(new UiSelector()
  .text("Apps")));

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)?

• A.onCreateLayoutManager
• B.onCreateView
• C.onCreatePreferences
• D.onCreateRecyclerView

For example, our preferences.xml file was added by addPreferencesFromResource (R.xml.preferences). Our preferences.xml file contains such item:
<ListPreference android:id="@+id/order_by" android:key="@string/pref_sort_key" 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:

• A.String sortBy = PreferenceManager.getDefaultSharedPreferences(getContext ()).getString( getContext().getString(R.string.pref_sort_key), getContext().getResources().getBoolean(R.bool.pref_default_sort_value) );
• B.boolean sortBy = PreferenceManager.getSharedPreferences(getContext()).getBoolean ( getContext().getResources().getBoolean(R.bool.pref_default_sort_value), getContext().getString(R.string.pref_sort_key) );
• C.String sortBy = PreferenceManager.getSharedPreferences(getContext()).getString( getContext().getString(R.string.pref_default_sort_value), getContext().getString(R.string.pref_sort_key) );
• D.String sortBy = PreferenceManager.getDefaultSharedPreferences(getContext ()).getString( getContext().getString(R.string.pref_sort_key), getContext().getString(R.string.pref_default_sort_value) ) Section: JAVA only Explanation

In a class extended PreferenceFragmentCompat. What method is used to inflate the given XML resource and add the preference hierarchy to the current preference hierarchy?

• A.getPreferenceManager
• B.setPreferenceScreen
• C.addPreferencesFromResource
• D.findPreference