eyeahs

fun String.encodeBase64ToString(): String = String(this.toByteArray().encodeBase64())
fun String.encodeBase64ToByteArray(): ByteArray = this.toByteArray().encodeBase64()
fun ByteArray.encodeBase64ToString(): String = String(this.encodeBase64())

fun String.decodeBase64(): String = String(this.toByteArray().decodeBase64())
fun String.decodeBase64ToByteArray(): ByteArray = this.toByteArray().decodeBase64()
fun ByteArray.decodeBase64ToString(): String = String(this.decodeBase64())

fun ByteArray.encodeBase64(): ByteArray {
  val table = (CharRange('A', 'Z') + CharRange('a', 'z') + CharRange('0', '9') + '+' + '/').toCharArray()

eyeahs

/**
 * An [Observer] for [Event]s, simplifying the pattern of checking if the [Event]'s content has
 * already been handled.
 *
 * [onEventUnhandledContent] is *only* called if the [Event]'s contents has not been handled.
 */
class EventObserver<T>(private val onEventUnhandledContent: (T) -> Unit) : Observer<Event<T>> {
    override fun onChanged(event: Event<T>?) {
        event?.getContentIfNotHandled()?.let { value ->
            onEventUnhandledContent(value)

eyeahs

        <android.support.v7.widget.RecyclerView
            android:id="@+id/results_list"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@+id/toolbar_wrapper"
            android:scrollbars="vertical"
            app:itemView="@{listViewModel.itemView}"
            app:items="@{listViewModel.films}"
            app:layoutManager="@{LayoutManagers.linear()}"
            app:onItemSelected="@{listViewModel.onItemSelected}"

eyeahs

Ref : https://stackoverflow.com/questions/3546745/multiple-wildcards-on-a-generic-methods-makes-java-compiler-and-me-very-confu

As Appendix B indicates, this has nothing to do with multiple wildcards, but rather, misunderstanding what List<List<?>> really means.

Let's first remind ourselves what it means that Java generics is invariant:

An Integer is a Number A List is NOT a List A List IS a List<? extends Number> We now simply apply the same argument to our nested list situation (see appendix for more details):

eyeahs

public class DefaultInjectingHelper {
    
    public static void main(String[] args) {
        final Component component = new ComponentMockImpl();
        final BaseDependecy a = new A();
        injectWithReflection(component, a);
    }
    
    public void injectWithReflection(Component component, Object target) throws InterruptedException {

eyeahs

RecyclerViewInteraction.<Item>onRecyclerView(withId(R.id.recyclerview))
    .withItems(items)
    .check(new ItemViewAssertion<Item>() {
        @Override
        public void check(Item item, View view, NoMatchingViewException e) {
            matches(hasDescendant(withText(item.getDisplayName())))
                .check(view, e);
        }
    });

eyeahs

public enum EnumCode {
    ABC(R.string.abc),
    DEF(R.string.def),
    GHI(R.string.ghi);

    private final int stringResourceId;

    public static EnumCode fromString(String name) {
        for (EnumCode code : EnumCode.values()) {
            if (code.name().equalsIgnoreCase(name)) {

eyeahs

// Delete items while iterate
Iterator<Long> iterator = anyArrayList.iterator();
while (iterator.hasNext()) {
	long value = iterator.next();
	if (/** condition **/) {
		iterator.remove();
	}
}

// Find duplicates

eyeahs

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- disabled -->
    <item android:color="#ff000000" android:state_enabled="false" />

    <!-- pressed -->
    <item android:color="#ff000000" android:state_enabled="true" android:state_pressed="true" />

    <!-- focused -->
    <item android:color="#ff000000" android:state_enabled="true" android:state_focused="true" />

eyeahs

##Getting results from DialogFragments to another Fragment.

When setting up the DialogFragment make a call to Fragment.setTargetFragment()
Then from DialogFragment you can access the main fragment with Fragment.getTargetFragment()
Use interfaces to provide the required actions to the calling Fragment.

##Example code.

###AddFriendDialogFragment - Calls back to calling fragment.