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public abstract class BaseMainFragment extends Fragment {

    @Override
    public Animation onCreateAnimation(int transit, final boolean enter, int nextAnim) {
        if (nextAnim == R.animator.next_fragment_anim) {
            Animation nextAnimation = AnimationUtils.loadAnimation(getContext(), nextAnim);
            nextAnimation.setAnimationListener(new Animation.AnimationListener() {
                private float startZ = 0f;

                @Override

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import java.util.Timer;
import java.util.TimerTask;

public class TimerUtils {
    private TimerTask timerTask;
    private Timer timer;
    private Action action;

    public void start(Action action, int delay) {
        this.action = action;

zerobranch

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Checkable;
import android.widget.LinearLayout;

import java.util.HashSet;
import java.util.Set;

public class CheckableLinearLayout extends LinearLayout implements Checkable {

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2018 Arman Sargsyan
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is