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Google Associate Android Developer Exam Practice Questions (P. 1)

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Question #1
What is a correct part of an Implicit Intent for sharing data implementation?
  1. A
    val sendIntent = Intent(this, UploadService::class.java).apply { putExtra(Intent.EXTRA_TEXT, textMessage) ...
  2. B
    val sendIntent = Intent().apply { type = Intent.ACTION_SEND; ...
  3. C
    val sendIntent = Intent(this, UploadService::class.java).apply { data = Uri.parse(fileUrl) ...
  4. D
    val sendIntent = Intent().apply { action = Intent.ACTION_SEND ...

Correct Answer:
D
Create the text message with a string
val sendIntent = Intent().apply {
action = Intent.ACTION_SEND
putExtra(Intent.EXTRA_TEXT, textMessage)
type = "text/plain"
}
Reference:
https://developer.android.com/guide/components/fundamentals

Question #2
By default, the notification's text content is truncated to fit one line. If you want your notification to be longer, for example, to create a larger text area, you can do it in this way:
  1. A
    var builder = NotificationCompat.Builder(this, CHANNEL_ID) .setContentText("Much longer text that cannot fit one line...") .setStyle(NotificationCompat.BigTextStyle() .bigText("Much longer text that cannot fit one line...")) ...
  2. B
    var builder = NotificationCompat.Builder(this, CHANNEL_ID) .setContentText("Much longer text that cannot fit one line...") .setLongText("Much longer text that cannot fit one line...")) ...
  3. C
    var builder = NotificationCompat.Builder(this, CHANNEL_ID) .setContentText("Much longer text that cannot fit one line...") .setTheme(android.R.style.Theme_LongText); ...

Correct Answer:
A
Reference:
https://developer.android.com/training/notify-user/build-notification

Question #3
Select correct demonstration of WorkRequest cancellation.
  1. A
    workManager.enqueue(OneTimeWorkRequest.Builder(FooWorker::class.java).build())
  2. B
    val request: WorkRequest = OneTimeWorkRequest.Builder(FooWorker::class.java).build() workManager.enqueue(request) val status = workManager.getWorkInfoByIdLiveData(request.id) status.observe(...)
  3. C
    val request: WorkRequest = OneTimeWorkRequest.Builder(FooWorker::class.java).build() workManager.enqueue(request) workManager.cancelWorkById(request.id)
  4. 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, request2).then(request3).enqueue()
  5. E
    val request: WorkRequest = OneTimeWorkRequest.Builder(FooWorker::class.java).build() workManager.enqueue(request) workManager.cancelWork(request)

Correct Answer:
C
Videos:
✑ Working with WorkManager, from the 2018 Android Dev Summit
✑ WorkManager: Beyond the basics, from the 2019 Android Dev Summit
Reference:
https://developer.android.com/reference/androidx/work/WorkManager?hl=en

Question #4
In general, you should send an AccessibilityEvent whenever the content of your custom view changes. For example, if you are implementing a custom slider bar that allows a user to select a numeric value by pressing the left or right arrows, your custom view should emit an event of type TYPE_VIEW_TEXT_CHANGED whenever the slider value changes. Which one of the following sample codes demonstrates the use of the sendAccessibilityEvent() method to report this event.
  1. A
    override fun dispatchPopulateAccessibilityEvent(event: AccessibilityEvent): Boolean { return super.dispatchPopulateAccessibilityEvent(event).let { completed -> if (text?.isNotEmpty() == true) { event.text.add(text) true } else { completed } } }
  2. B
    override fun onKeyUp(keyCode: Int, event: KeyEvent): Boolean { return when(keyCode) { KeyEvent.KEYCODE_DPAD_LEFT -> { currentValue-- sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED) true } ... } }
  3. C
    override fun onKeyUp(keyCode: Int, event: KeyEvent): Boolean { return when(keyCode) { KeyEvent.KEYCODE_ENTER -> { currentValue-- sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CONTEXT_CLICKED) true } ... } }

Correct Answer:
B
Reference:
https://developer.android.com/guide/topics/ui/accessibility/custom-views

Question #5
The easiest way of adding menu items (to specify the options menu for an activity) is inflating an XML file into the Menu via MenuInflater. With menu_main.xml we can do it in this way:
  1. A
    override fun onCreateOptionsMenu(menu: Menu): Boolean { menuInflater.inflate(R.menu.menu_main, menu) return true }
  2. B
    override fun onOptionsItemSelected(item: MenuItem): Boolean { menuInflater.inflate(R.menu.menu_main, menu) return super.onOptionsItemSelected(item) }
  3. C
    override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.menu.menu_main) }

Correct Answer:
A
Reference:
https://developer.android.com/guide/topics/ui/accessibility/custom-views

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