Associate Android Developer exam

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 at first and later the main thread would override it with the value "a".B . The...

Select correct demonstration of WorkRequest cancellation.A . workManager.enqueue(OneTimeWorkRequest.Builder(FooWorker::class.java).build())B . val request: WorkRequest = OneTimeWorkRequest.Builder (FooWorker::class.java).build() workManager.enqueue(request) val status = workManager.getWorkInfoByIdLiveData(request.id) status.observe(...)C . val request: WorkRequest = OneTimeWorkRequest.Builder (FooWorker::class.java).build() workManager.enqueue(request) workManager.cancelWorkById(request.id)D . val request1: WorkRequest = OneTimeWorkRequest.Builder (FooWorker::class.java).build() val request2: WorkRequest = OneTimeWorkRequest.Builder (BarWorker::class.java).build() val request3: WorkRequest = OneTimeWorkRequest.Builder (BazWorker::class.java).build() workManager.beginWith(request1,...

For example, we have a file in our raw folder app/src/main/res/raw/sample_teas.json. To get an InputStream for reading it, from out Context context, we can do this:A . val input = context!!.openRawResource(R.raw.sample_teas)B . val input = context!!.getRawResource(R.raw.sample_teas)C . val input = context!!.resources.openRawResource(R.raw.sample_teas)View AnswerAnswer: C

Each time your test invokes onView(), Espresso waits to perform the corresponding UI action or assertion until the following synchronization conditions are met: (Choose three.)A . The message queue is empty.B . The message queue is not empty.C . There are some instances of AsyncTask currently executing a task.D ....

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 one class at a time.B . validate either interactions between levels of the stack within a...

For example, we have a file in our assets folder app/src/main/assets/sample_teas.json. To get an InputStream for reading it, from out Context context, we can try do this:A . val input = context!!.resources.openRawResource(R.raw.sample_teas)B . val input = context!!.assets.open("sample_teas.json")C . val input = context!!.resources.assets.open("sample_teas.json")View AnswerAnswer: B

The Log class allows you to create log messages that appear in logcat. Generally, you could use the following log methods: (Choose five.)A . Log.e(String, String) (error)B . Log.a(String, String) (all outputs)C . Log.w(String, String) (warning)D . Log.i(String, String) (information)E . Log.q(String, String) (Question:s)F . Log.d(String, String) (debug)G . Log.v(String,...