Android动画使用记录

一、常用动画类

暂分为两类：

1、Animation

TranslateAnimation 位移动画 //fromXDelta，fromYDelta起始坐标 //toXDelta，toYDelta 移动坐标 TranslateAnimation(float fromXDelta, float toXDelta, float fromYDelta, float toYDelta); AlphaAnimation 透明动画 //fromAlpha 起始透明度，toAlpha 最终透明度 AlphaAnimation(float fromAlpha, float toAlpha) ScaleAnimation 缩放动画 ScaleAnimation(float fromX, float toX, float fromY, float toY) AnimationSet

2、Animator

ViewAnimator ofInt(Object target, String propertyName, int... values) ofFloat(Object target, String propertyName, float... values) ofObject(Object target, String propertyName, TypeEvaluator evaluator, Object... values) ofPropertyValuesHolder(Object target, PropertyValuesHolder... values)

ObjectAnimator

AnimatorSet

二、 Animator使用注意

一个ObjectAnimator多个动画复合 通过PropertyValuesHolder构建ObjectAnimator，如： float tranX = getResources().getDimension(R.dimen._20dp); float tranY = getResources().getDimension(R.dimen._10dp); PropertyValuesHolder valuesHolderX = PropertyValuesHolder.ofFloat("translationX", 0.0f, -tranX); PropertyValuesHolder valuesHolderY = PropertyValuesHolder.ofFloat("translationY", 0.0f, -tranY); final ObjectAnimator objectAnimator = ObjectAnimator.ofPropertyValuesHolder(mTarget, valuesHolderX, valuesHolderY); Animator如何恢复默认值 通过Traget的setXXX方法设置相关默认值，如： mTarget.setAlpha(1.0f); mTarget.setTranslationX(0); mTarget.setTranslationY(0); Animator监听器 Animator的监听器常用的有2种： 1、Animator.AnimatorListener 动画关键性的动作回调 2、AnimatorUpdateListener 动画更新的回调 public void addUpdateListener(AnimatorUpdateListener listener){} public static interface AnimatorUpdateListener { /** * <p>Notifies the occurrence of another frame of the animation.</p> * * @param animation The animation which was repeated. */ void onAnimationUpdate(ValueAnimator animation); } public void addListener(AnimatorListener listener) {} public static interface AnimatorListener { /** * <p>Notifies the start of the animation.</p> * * @param animation The started animation. */ void onAnimationStart(Animator animation); /** * `注意`如果动画有设置Repeat，则Repeat结束后最后才回调onAnimationEnd * <p>Notifies the end of the animation. This callback is not invoked * for animations with repeat count set to INFINITE.</p> * * * @param animation The animation which reached its end. */ void onAnimationEnd(Animator animation); /** * <p>Notifies the cancellation of the animation. This callback is not invoked * for animations with repeat count set to INFINITE.</p> * * @param animation The animation which was canceled. */ void onAnimationCancel(Animator animation); /** * * <p>Notifies the repetition of the animation.</p> * * @param animation The animation which was repeated. */ void onAnimationRepeat(Animator animation); }

三、其他

AnimationSet和AnimatorSet的区别: AnimationSet 多个Animation动画同时进行，动画播放顺序不可控制。 AnimatorSet 多个Animator动画可以选择顺序也可同时进行，播放顺序不可控制。