abdalin

import androidx.lifecycle.LiveData
import androidx.lifecycle.MediatorLiveData

class BiSourceMergerLiveData<T, U, R>(
    source1: LiveData<T>,
    source2: LiveData<U>,
    block: (T?, U?) -> R?

) : MediatorLiveData<R>() {

abdalin

open class Event<out T>(private val data: T) {

    /**
     * Collection of distinct scopes this [Event] has been consumed with
     */
    private val consumedScopes by lazy { hashSetOf<String>() }

    /**
     * Checks if this [Event] is consumed for the given scope
     */

abdalin

class MultiComparator<T> implements Comparator<T> {

    private final List<Comparator<T>> comparators;

    public MultiComparator(List<Comparator<T>> comparators) {
        this.comparators = comparators;
    }

    public MultiComparator(Comparator<T>... comparators) {
        this(Arrays.asList(comparators));

abdalin

public class DividerItemDecorator extends ItemDecoration {

    public static final int HORIZONTAL = LinearLayout.HORIZONTAL;
    public static final int VERTICAL = LinearLayout.VERTICAL;

    private Drawable mDivider;
    private int mOrientation;
    private final Rect mBounds = new Rect();

    public DividerItemDecorator(Drawable divider, int orientation) {

abdalin

private void attachSnapHelper(RecyclerView recyclerView, final RecyclerView.LayoutManager layoutManager) {
    final SnapHelper snapHelper = new LinearSnapHelper();

    recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
        boolean mScrolled = false;
        int snapPosition;

        @Override
        public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
            super.onScrollStateChanged(recyclerView, newState);