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Google Associate Android Developer
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Question: 98 Section 1
If content in a PagedList updates, the PagedListAdapter object receives:
only one item from PagedList that contains the updated information.
one or more items from PagedList that contains the updated information.
a completely new PagedList that contains the updated information.
Answer: C Reference:
https://developer.android.com/topic/libraries/architecture/paging/ui Question: 99 Section 1
Relative positioning is one of the basic building blocks of creating layouts in ConstraintLayout. Constraints allow you to position a given widget relative to another one. What constraints do not exist?
layout_constraintBottom_toBottomOf
layout_constraintBaseline_toBaselineOf
layout_constraintBaseline_toStartOf
layout_constraintStart_toEndOf
Answer: C Reference:
https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintLayout Question: 100 Section 1
Which statement is most true about layout_constraintLeft_toRightOf and layout_constraintStart_toEndOf constraints ?
layout_constraintLeft_toRightOf is equal to layout_constraintStart_toEndOf in any case
layout_constraintLeft_toRightOf is equal to layout_constraintStart_toEndOf in case if user choose a language that uses right-to-left (RTL) scripts, such as Arabic or Hebrew, for their UI locale
layout_constraintLeft_toRightOf is equal to layout_constraintStart_toEndOf in case if user choose a language that uses left-to-right (LTR) scripts, such as English or French, for their UI locale
layout_constraintLeft_toRightOf works with horizontal axes and layout_constraintStart_toEndOf works with vertical axes
Answer: C Reference:
https://developer.android.com/training/basics/supporting-devices/languages Question: 101 Section 1
In application theme style, flag windowNoTitle (<item name="windowNoTitle">) indicates:
whether this window should have an Action Bar in place of the usual title bar.
whether there should be no title on this window.
that this window should not be displayed at all.
whether this is a floating window.
whether this Window is responsible for drawing the background for the system bars.
Answer: B Reference:
https://developer.android.com/guide/topics/ui/look-and-feel/themes https://developer.android.com/reference/android/R.styleable.html Question: 102 Section 1
"Set the activity content to an explicit view. This view is placed directly into the activity's view hierarchy. It can itself be a complex view hierarchy." This can be done by calling method:
findViewById
setContentView
setActionBar
setContentTransitionManager
setTheme
Answer: B Reference:
https://developer.android.com/training/basics/firstapp/building-ui https://developer.android.com/reference/android/app/Activity Question: 103 Section 1
A content label sometimes depends on information only available at runtime, or the meaning of a View might change over time. For example, a Play button might change to a Pause button during music playback. In these cases, to update the content label at the appropriate time, we can use:
View#setContentDescription(int contentDescriptionResId)
View#setContentLabel(int contentDescriptionResId)
View#setContentDescription(CharSequence contentDescription)
View#setContentLabel(CharSequence contentDescription)
Answer: C Reference:
https://support.google.com/accessibility/android/answer/7158690?hl=en Question: 104 Section 1
When using an ImageView, ImageButton, CheckBox, or other View that conveys information graphically. What attribute to use to provide a content label for that View?
android:contentDescription
android:hint
android:labelFor
Answer: A Reference:
https://support.google.com/accessibility/android/answer/7158690?hl=en Question: 105 Section 1
When using an EditTexts or editable TextViews, or other editable View. What attribute to use to provide a content label for that View?
android:contentDescription
android:hint
android:labelFor
Answer: B Reference:
https://support.google.com/accessibility/android/answer/7158690?hl=en Question: 106 Section 1
Content labels. What attribute to use to indicate that a View should act as a content label for another View?
android:contentDescription
android:hint
android:labelFor
Answer: C Reference:
https://support.google.com/accessibility/android/answer/7158690?hl=en Question: 107 Section 1
In application theme style, flag windowActionBar (<item name="windowActionBar">) indicates:
whether the given application component is available to other applications.
whether action modes should overlay window content when there is not reserved space for their UI (such as an Action Bar).
whether this window's Action Bar should overlay application content.
whether this window should have an Action Bar in place of the usual title bar.
Answer: D Reference:
https://developer.android.com/guide/topics/ui/look-and-feel/themes https://developer.android.com/reference/android/R.styleable.html
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