SimpleAnimUtil.java

package razerdp.util;

import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;

/**
 * Created by 大灯泡 on 2017/1/13.
 */

public class SimpleAnimUtil {


    /**
     * 生成TranslateAnimation
     *
     * @param durationMillis 动画显示时间
     * @param start          初始位置
     */
    public static Animation getTranslateAnimation(int start, int end, int durationMillis) {
        Animation translateAnimation = new TranslateAnimation(0, 0, start, end);
        translateAnimation.setDuration(durationMillis);
        translateAnimation.setFillEnabled(true);
        translateAnimation.setFillAfter(true);
        return translateAnimation;
    }


    /**
     * 生成ScaleAnimation
     *
     * time=300
     */
    public static Animation getScaleAnimation(float fromX,
                                          float toX,
                                          float fromY,
                                          float toY,
                                          int pivotXType,
                                          float pivotXValue,
                                          int pivotYType,
                                          float pivotYValue) {
        Animation scaleAnimation = new ScaleAnimation(fromX, toX, fromY, toY, pivotXType, pivotXValue, pivotYType,
                                                      pivotYValue
        );
        scaleAnimation.setDuration(300);
        scaleAnimation.setFillEnabled(true);
        scaleAnimation.setFillAfter(true);
        return scaleAnimation;
    }


    /**
     * 生成自定义ScaleAnimation
     */
    public static Animation getDefaultScaleAnimation() {
        Animation scaleAnimation = new ScaleAnimation(0f, 1f, 0f, 1f, Animation.RELATIVE_TO_SELF, 0.5f,
                                                      Animation.RELATIVE_TO_SELF, 0.5f
        );
        scaleAnimation.setDuration(300);
        scaleAnimation.setInterpolator(new AccelerateInterpolator());
        scaleAnimation.setFillEnabled(true);
        scaleAnimation.setFillAfter(true);
        return scaleAnimation;
    }


    /**
     * 生成默认的AlphaAnimation
     */
    public static Animation getDefaultAlphaAnimation() {
        Animation alphaAnimation = new AlphaAnimation(0.0f, 1.0f);
        alphaAnimation.setDuration(300);
        alphaAnimation.setInterpolator(new AccelerateInterpolator());
        alphaAnimation.setFillEnabled(true);
        alphaAnimation.setFillAfter(true);
        return alphaAnimation;
    }



    /**
     * 从下方滑动上来
     */
    public static AnimatorSet getDefaultSlideFromBottomAnimationSet(View mAnimaView) {
        AnimatorSet set = null;
        set = new AnimatorSet();
        if (mAnimaView != null) {
            set.playTogether(
                    ObjectAnimator.ofFloat(mAnimaView, "translationY", 250, 0).setDuration(400),
                    ObjectAnimator.ofFloat(mAnimaView, "alpha", 0.4f, 1).setDuration(250 * 3 / 2)
                            );
        }
        return set;
    }
}