ExpandButtonLayout.java 文件源码

public void open() {

        AnimationSet animationSet = new AnimationSet(true);
        animationSet.setDuration(duration);
        animationSet.setAnimationListener(this);
        animationSet.setFillAfter(true);

        RotateAnimation rotateAnimation = new RotateAnimation(270, 360,
                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
        animationSet.addAnimation(rotateAnimation);
        Animation scaleAnimation = new ScaleAnimation(1.25f, 1f, 1.25f, 1f,
                ScaleAnimation.RELATIVE_TO_SELF, 0.5f, ScaleAnimation.RELATIVE_TO_SELF, 0.5f);
        animationSet.addAnimation(scaleAnimation);
        imageView.startAnimation(animationSet);


        AnimatorSet animatorSet = new AnimatorSet();
        ObjectAnimator animator1 = ObjectAnimator.ofInt(mLinearLayout, "width", 0, mLinearLayoutWidth);
        ObjectAnimator animator2 = ObjectAnimator.ofInt(mLinearLayout, "paddingLeft", 0, savePaddingLeft);
        ObjectAnimator animator3 = ObjectAnimator.ofInt(mLinearLayout, "paddingRight", 0, savePaddingRight);
        ObjectAnimator animator4 = ObjectAnimator.ofInt(mLinearLayout, "marginLeft", 0, saveMarginLeft);
        ObjectAnimator animator5 = ObjectAnimator.ofInt(mLinearLayout, "marginRight", 0, saveMarginRight);
        animatorSet.playTogether(animator1, animator2, animator3, animator4, animator5);
        animatorSet.setDuration(duration).start();

    }