com.xujun.contralayout.utils.AnimatorUtil.java Source code

Introduction

Here is the source code for com.xujun.contralayout.utils.AnimatorUtil.java

Source

/*
 * Copyright 2016 Yan Zhenjie
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.xujun.contralayout.utils;

import android.animation.ValueAnimator;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.ViewPropertyAnimatorListener;
import android.support.v4.view.animation.LinearOutSlowInInterpolator;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AccelerateInterpolator;

/**
 * Created on 2016/7/14.
 *
 * @author Yan Zhenjie.
 */
public class AnimatorUtil {

    public static final String TAG = "xujun";

    public static final LinearOutSlowInInterpolator FAST_OUT_SLOW_IN_INTERPOLATOR = new LinearOutSlowInInterpolator();

    // view
    public static void scaleShow(View view, ViewPropertyAnimatorListener viewPropertyAnimatorListener) {
        view.setVisibility(View.VISIBLE);
        ViewCompat.animate(view).scaleX(1.0f).scaleY(1.0f).alpha(1.0f).setDuration(800)
                .setListener(viewPropertyAnimatorListener).setInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR).start();
    }

    // ??view
    public static void scaleHide(View view, ViewPropertyAnimatorListener viewPropertyAnimatorListener) {
        ViewCompat.animate(view).scaleX(0.0f).scaleY(0.0f).alpha(0.0f).setDuration(800)
                .setInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR).setListener(viewPropertyAnimatorListener).start();
    }

    public static void tanslation(final View view, float start, float end) {
        final ValueAnimator animator = ValueAnimator.ofFloat(start, end);
        view.setVisibility(View.VISIBLE);
        animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator valueAnimator) {
                Float value = (Float) animator.getAnimatedValue();
                Log.i(TAG, "tanslation: value=" + value);
                view.setTranslationY(value);
            }
        });
        animator.setDuration(200);
        animator.setInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR);
        animator.start();
    }

    public static void showHeight(final View view, float start, float end) {
        final ValueAnimator animator = ValueAnimator.ofFloat(start, end);
        final ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
        animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator valueAnimator) {
                float value = (Float) animator.getAnimatedValue();
                layoutParams.height = (int) value;
                view.setLayoutParams(layoutParams);
                Log.i(TAG, "onAnimationUpdate: value=" + value);

            }
        });
        animator.setDuration(500);
        animator.setInterpolator(new AccelerateInterpolator());
        animator.start();
    }

    public static void show(final View view, int start, int end) {
        final int height = view.getHeight();
        final ValueAnimator animator = ValueAnimator.ofInt(start, end);
        animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator valueAnimator) {
                int value = (Integer) animator.getAnimatedValue();
                Log.i(TAG, "onAnimationUpdate: value=" + value);
                view.setTop(value);
                view.setBottom(value + height);
            }
        });
        view.setVisibility(View.VISIBLE);
        animator.setDuration(200);
        animator.setInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR);
        animator.start();
    }

}