app/src/main/java/me/zhanghai/android/douya/util/ViewUtils.java

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/*
 * Copyright (c) 2015 Zhang Hai <Dreaming.in.Code.ZH@Gmail.com>
 * All Rights Reserved.
 */

package me.zhanghai.android.douya.util;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.support.design.widget.TextInputLayout;
import android.support.v4.view.animation.FastOutLinearInInterpolator;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.content.res.AppCompatResources;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.EditText;
import android.widget.TextView;

import me.zhanghai.android.douya.ui.ClickableMovementMethod;

public class ViewUtils {

    public static void fadeOut(final View view, int duration, final boolean gone,
                               final Runnable nextRunnable) {
        if (view.getVisibility() != View.VISIBLE || view.getAlpha() == 0) {
            // Cancel any starting animation.
            view.animate()
                    .alpha(0)
                    .setDuration(0)
                    .start();
            view.setVisibility(gone ? View.GONE : View.INVISIBLE);
            if (nextRunnable != null) {
                nextRunnable.run();
            }
            return;
        }
        view.animate()
                .alpha(0)
                .setDuration(duration)
                .setInterpolator(new FastOutLinearInInterpolator())
                .setListener(new AnimatorListenerAdapter() {
                    private boolean mCanceled = false;
                    @Override
                    public void onAnimationCancel(Animator animator) {
                        mCanceled = true;
                    }