drawers

<Button
  android:text="Register"
  android:onClick="@{v->interactor.onRegisterButtonClick(model.username, model.password)}"/>

drawers

public class RegistrationTest {

	//mocks
	@Mock Storage mockStorage;
	@Mock RegistrationService mockRegistrationService;
	@Mock RegistrationContract.View mockView;

	//system under test
	RegistrationContract.Interactor interactor;
	RegistrationContract.Presenter presenter;

drawers

@Test
public void testShowAlertDialog() throws Exception {
    	//act
	registrationActivity.showAlertDialog("No internet available.")
	ScreenShotter.takeScreenshot("details", activity);

    	//assert
	onView(withId(R.id.custom_alert_dialog_picture)).check(matches(isCompletelyDisplayed()));
	onView(withId(R.id.custom_alert_dialog_button)).check(matches(withText("Shucks")));
	onView(withId(R.id.custom_alert_dialog_button)).check(matches("No internet available."));

drawers

Material text sizes XML for Android

Simple helper file for standard text sizes in material design. The sizes are provided by the material design documentation https://www.google.com/design/spec/style/typography.html#typography-roboto

Standard Styles

Too many type sizes and styles at once can wreck any layout. A typographic scale is a limited set of type sizes that work well together, along with the layout grid. The basic set of styles are based on a typographic scale of 12, 14, 16, 20, and 34.

drawers

class PickupFragment : Fragment() {

    private val disposables = CompositeDisposable()

    private lateinit var adapter: RecylerView.Adapter<PickupVH>

    override fun onStart() {
        super.onStart()
        source().viewStates()
            .observeOn(AndroidSchedulers.mainThread())

drawers

override fun onStart() {
    super.onStart()
    source().viewStates()
        .debounce {
            when {
                it.isLoading() -> Observable.timer(250, TimeUnit.MILLISECONDS)
                else -> Observable.empty()
            }
        }
        .observeOn(AndroidSchedulers.mainThread())

drawers

private typealias PageDebounceSelector = (data: PickupData) -> ObservableSource<Long>

class PickupFragment {

    override fun onStart() {
        super.onStart()
        source().viewStates()
            .debounce(loadingOnly)
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe { data: PickupData ->

drawers

fun <T> Observable<T>.debounceIf(predicate: (T) -> Boolean, delay: Long, unit: TimeUnit): Observable<T> {
    return this.debounce {
        when {
            predicate(it) -> Observable.timer(delay, unit)
            else -> Observable.empty()
        }
    }
}

drawers

class PickupFragment : Fragment() {

    override fun onStart() {
        super.onStart()
        source().viewStates()
            .debounceIf({ it.isLoading() }, 250, TimeUnit.MILLISECONDS)
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe { data: PickupData ->
                adapter.setData(data)
            }

drawers

    val testScheduler = TestScheduler()

    val states = listOf(Loading, Loaded, ClickX, ClickY)

    @Test
    fun `loading followed 500ms later by loaded is emitted`() {
        val observable = Observable.fromIterable(listOf(0, 500, 1000, 2000))
            .zipWith(states) { index, state -> Pair(index, state) }
            .delay {
                Observable.timer(it.first.toLong(), TimeUnit.MILLISECONDS, testScheduler)