Android修炼之道—动效 Property Animation
先写一下AnimatorSet的动画类型：
- translationX,translationY:转换坐标（control where the View is located as a delta from its left and top coordinates which are set by its layout container.）
- rotation,rotationX,rotationY:旋转，rotation用于2D旋转角度，3D中用到后两个
- scaleX,scaleY:缩放
- x,y:View的最终坐标（utility properties to describe the final location of the View in its container, as a sum of the left and top values and translationX and translationY values.）
- alpha:透明度
可以xml定义
AnimatorSet set = (AnimatorSet) AnimatorInflater.loadAnimator(myContext, R.anim.property_animator);set.setTarget(myObject);set.start();
1）AccelerateDecelerateInterpolator：先加速再减速。
2）AccelerateInterpolator：一直加速。
3）AnticipateInterpolator：先往后一下，再嗖的一声一往无前。
4）AnticipateOvershootInterpolator：先往后一下，再一直往前超过终点，再往回收一下。
5）BounceInterpolator：最后像个小球弹几下。
6）CycleInterpolator：重复几次，感觉就是环形进度条那种，具体我还没试过。
7）DecelerateInterpolator：一直减速。
8）LinearInterpolator：线性，这个就是我们上面讲到的很均匀的了。
9）OvershootInterpolator：到了终点之后，超过一点，再往回走。有个参数可以定义，超过的力度。
ObjectAnimator fadeOut = ObjectAnimator.ofFloat(v1, "alpha", 0f);
ObjectAnimator mover = ObjectAnimator.ofFloat(v2, "translationX", -500f, 0f);
ObjectAnimator fadeIn = ObjectAnimator.ofFloat(v2, "alpha", 0f, 1f);
AnimatorSet animSet = new AnimatorSet().play(mover).with(fadeIn).after(fadeOut);;
animSet.start();
animationSet = new AnimatorSet();
animationSet.playTogether(
ObjectAnimator.ofFloat(layout_bottom, "alpha", 1,0,1),
ObjectAnimator.ofFloat(layout_bottom, "translationX", 0f,400f,0f),
ObjectAnimator.ofFloat(layout_bottom, "rotation", 0,180,360)
);
animationSet.setDuration(1000);
animationSet.setTarget(layout_bottom);
animationSet.addListener(new AnimatorListener() {
@Override
public void onAnimationStart(Animator arg0) {
Log.e(TAG,"onAnimationStart");
}
@Override
public void onAnimationRepeat(Animator arg0) {
Log.e(TAG,"onAnimationRepeat");
}
@Override
public void onAnimationEnd(Animator arg0) {
Log.e(TAG,"onAnimationEnd");
}
@Override
public void onAnimationCancel(Animator arg0) {
Log.e(TAG,"onAnimationCancel");
}
});
animationSet.start();
当然，我会记录一些其他部分：
改变RelativeLayout的高度
举个例子
RelativeLayout layout_relative_header = (RelativeLayout)this.findViewById(R.id.layout_relative_header);
private void changeHeaderLayout(){
int width= layout_relative_header.getLayoutParams().width;
int height = layout_relative_header.getLayoutParams().height;
height = ScreenUtils.getIntPixels(this, 56); //small
// height = ScreenUtils.getIntPixels(this, 220); //big
RelativeLayout.LayoutParams param = new RelativeLayout.LayoutParams(width,height);
param.addRule(RelativeLayout.CENTER_VERTICAL, 1);
layout_relative_header.setLayoutParams(param);
}
// 下面是我的ScreenUtils方法：
public static int getIntPixels(final Context context, final int dp) {
return getIntPixels(context.getResources(), dp);
}
public static int getIntPixels(final Resources resources, final int dp) {
float pixels = TypedValue.applyDimension(COMPLEX_UNIT_DIP, dp,
resources.getDisplayMetrics());
return (int) Math.floor(pixels + 0.5F);
}
animatorSet = new AnimatorSet();
animatorSet.playTogether(ObjectAnimator.ofFloat(
layout_bottom, "alpha", 1, 0), ObjectAnimator
.ofFloat(layout_bottom, "translationY", 0f, 800f));
animatorSet.setDuration(600);
animatorSet.setInterpolator(new AnticipateInterpolator());
objectAnimator = ObjectAnimator.ofFloat(iv_controller,
"rotation", 90f, 0f);
objectAnimator.setDuration(600);
objectAnimator
.setInterpolator(new AnticipateInterpolator());
animatorSet.start();
objectAnimator.start();
layout_bottom.postDelayed(new Runnable() {
@Override
public void run() {
layout_bottom.setVisibility(View.VISIBLE);
}
}, 100);
//AnimatorSet类与AnimationSet别搞混，而且必须在3.0以上版本中才有哦...
//此类可以根据一个特殊的顺序来播放Animator对象中的动画，而Animator则是一个
//可以支持set结点设置动画的详细信息，如：开始、结束等...，set相信大家不是很陌生了吧
//以下形式即：set结点动画
/**<setandroid:ordering=["together" ¦ "sequentially"]>
<objectAnimator
android:propertyName="string"
android:duration="int"
android:valueFrom="float ¦ int ¦ color"
android:valueTo="float ¦ int ¦ color"
android:startOffset="int"
android:repeatCount="int"
android:repeatMode=["repeat" ¦ "reverse"]
android:valueType=["intType" ¦ "floatType"]/>
<animator
android:duration="int"
android:valueFrom="float ¦ int ¦ color"
android:valueTo="float ¦ int ¦ color"
android:startOffset="int"
android:repeatCount="int"
android:repeatMode=["repeat" ¦ "reverse"]
android:valueType=["intType" ¦ "floatType"]/>
<set>
...
</set>
</set>*/
http://blog.csdn.net/ritterliu/article/details/7513822
http://tech.ddvip.com/2013-03/1362574852191505.html