LiveData.postValue() and LiveData.setValue() methods have some differences. So if you have a following code executed in the main thread: liveData.postValue("a"); liveData.setValue("b"); What will be the correct statement?A . The value "b" would be set...
When using an EditTexts or editable TextViews, or other editable View. What attribute to use to provide a content label for that View?A . android:contentDescriptionB . android:hintC . android:labelForView AnswerAnswer: B Explanation: Reference: https://support.google.com/accessibility/android/answer/7158690?hl=en
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...
Select a correct statement about PagedList.A . PagedList is content-mutable. This means that new content can be loaded into an instance of PagedList and the loaded items themselves can change once loaded.B . PagedList...
If constant LENGTH_INDEFINITE is used as a parameter for the setDuration method in Snackbar, what will happen?A . The Snackbar will be displayed for a short period of time.B . The Snackbar will be...
The following code snippet shows an example of an Espresso test:A . @Rule public void greeterSaysHello() { onView(withId(B . id.name_field)).do(typeText("Steve")); onView(withId(C . id.greet_button)).do(click()); onView(withText("Hello Steve!")).check(matches(isDisplayed())); }D . @Test public void greeterSaysHello() { onView(withId(E ....
What is the incorrect statement about Data Access Object (androidx.room.Dao)?A . Data Access Objects are the main classes where you define your database interactions. They can include a variety of query methods.B . The...
The Testing Pyramid, shown in the Figure, illustrates how your app should include the three categories of tests: small, medium, and large. Small tests are unit tests that: A . validate your app's behavior...
In our TeaViewModel class, that extends ViewModel, we have such method: public LiveData<Tea> getTea() { return mTea; } An observer in our Activity (type of mViewModel variable in example is TeaViewModel) is set in...
About running a debuggable build variant. Usually, you can just select the default "debug" variant that's included in every Android Studio project (even though it's not visible in the build.gradle file). But if you...
