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Google Associate Android Developer Practice Test - Questions Answers, Page 13

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Question 121

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We have a custom view that extends android.widget.ProgressBar. Our progress bar is not touchable, focusable, etc.: it just shows progress. Style for our custom progress bar extends "Widget.AppCompat.ProgressBar.Horizontal". An item, named "progressDrawable", in our style, is a xml file . What we usually can see as a main single element in this xml file:

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Question 122

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RecyclerView is a subclass of ViewGroup and is a more resource-efficient way to display scrollable lists. Instead of creating a View for each item that may or may not be visible on the screen, RecyclerView:

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Question 123

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Android uses adapters (from the Adapter class) to connect data with View items in a list. There are many different kinds of adapters available, and you can also write custom adapters. To connect data with View items, the adapter needs to know about the View items. From what is extended the entity that is usually used in an adapter and describes a View item and its position within the RecyclerView?

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Question 124

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DRAG DROP

With recommended app architecture. Fill the following diagram, which shows how all the modules usually should interact with one another after designing the app (drag modules to correct places).


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Question 125

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DRAG DROP

The diagram below shows a basic form of the recommended architecture for apps that use Architecture Components. The architecture consists of a UI controller, a ViewModel that serves LiveData, a Repository, and a Room database. Drag modules to correct places.


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Question 126

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DRAG DROP

Under the hood WorkManager uses an underlying job dispatching service based on the following criteria. You need to move services to the correct places.


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Question 127

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DRAG DROP

Move the major components of the Android platform to correct places in diagram.


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Question 128

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DRAG DROP

In a common Paging Library architecture scheme, move instances to the correct positions.


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Total 128 questions
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Related questions

Select four different types of app components. (Choose four.)
What statements about InputStreamReader (java.io.InputStreamReader) are correct? (Choose two.)
When your code execution reaches the breakpoint, Android Studio pauses execution of your app. You can then use the tools in the Debugger tab to identify the state of the app. With Step Out you can
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?
As an example. Our MutableLiveData<Long> object, named mLapseTime, is not connected to a Room database, etc. How can we change the value in mLapseTime?
The Log class allows you to create log messages that appear in logcat. Generally, you could use the following log methods: (Choose five.)
DRAG DROP In a common Paging Library architecture scheme, move instances to the correct positions.
DRAG DROP With recommended app architecture. Fill the following diagram, which shows how all the modules usually should interact with one another after designing the app (drag modules to correct places).
An example. In our ViewModelFactory (that implements ViewModelProvider.Factory) we have an instance of our Repository, named mRepository. Our ViewModel has such constructor: public MyViewModel(MyRepository myRepository)... Next, in our ViewModelFactory create ViewModel method (overriden) looks like this: @NonNull @Override public <T extends ViewModel> T create(@NonNull Class<T> modelClass) { try { //MISSED RETURN VALUE HERE } catch (InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) { throw new RuntimeException("Cannot create an instance of " + modelClass, e); }} What should we write instead of "//MISSED RETURN VALUE HERE"?
If you added to your build.gradle file a room.schemaLocation: android { defaultConfig { javaCompileOptions { annotationProcessorOptions { arguments = ["room.schemaLocation": "$projectDir/schemas".toString()] } } }} Then, you build your app or module. As a result you got a json file, with such path to it: app/schemas/your_app_package/db_package/DbClass/DB_VERSION.json What are the correct statements about this file? (Choose all that apply.)