Google Associate-Android-Developer Quiz 1 Topic 1 Questions 1-5

Question: 1

Filter logcat messages. If in the filter menu, a filter option ''Edit Filter Configuration''? means:

ADisplay the messages produced by the app code only (the default). Logcat filters the log messages using the PID of the active app.

BApply no filters. Logcat displays all log messages from the device, regardless of which process you selected.

CCreate or modify a custom filter. For example, you could create a filter to view log messages from two apps at the same time.

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Question: 2

With our Context we can get SharedPreferences with a method, named: getSharedPreferences (String name, int mode). What value can we transfer in a ''mode''parameter?

AMODE_PRIVATE or MODE_PUBLIC

Bcombination of MODE_WORLD_READABLE and MODE_WORLD_WRITEABLE

CValue is either 0 or a combination of MODE_PRIVATE, MODE_WORLD_READABLE, D.
MODE_WORLD_WRITEABLE, and MODE_MULTI_PROCESS

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Question: 3

''workManager'' is an instance of WorkManager. Select correct demonstration of WorkRequest cancellation:

AworkManager.enqueue(new OneTimeWorkRequest.Builder(FooWorker.class).build());

BWorkRequest request = new OneTimeWorkRequest.Builder(FooWorker.class).build(); workManager.enqueue(request);
LiveData<WorkInfo> status = workManager.getWorkInfoByIdLiveData(request.getId ());
status.observe(...);

CWorkRequest request = new OneTimeWorkRequest.Builder(FooWorker.class).build(); workManager.enqueue(request);
workManager.cancelWorkById(request.getId());

DWorkRequest request1 = new OneTimeWorkRequest.Builder(FooWorker.class).build();
WorkRequest request2 = new OneTimeWorkRequest.Builder(BarWorker.class).build
();
WorkRequest request3 = new OneTimeWorkRequest.Builder(BazWorker.class).build
();
workManager.beginWith(request1, request2).then(request3).enqueue();

EWorkRequest request = new OneTimeWorkRequest.Builder(FooWorker.class).build(); workManager.enqueue(request);
workManager.cancelWork(request);

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Question: 4

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 create(@NonNull Class 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''?

Areturn modelClass.getConstructor()
.newInstance(mRepository);

Breturn modelClass.getConstructor(MyRepository.class)
.newInstance();

Creturn modelClass.getConstructor(MyRepository.class)
.newInstance(mRepository);

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Question: 5

''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:

AfindViewById

BsetContentView

CsetActionBar

DsetContentTransitionManager

EsetTheme

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Google Associate-Android-Developer Quiz:1 Topic:1 Questions:1-5