Android 动画

    private void iniAnimation(){
        // 透明度动画
        ObjectAnimator.ofFloat(mAlphaImage, "alpha", 1, 0, 1)
                .setDuration(4000)
                .start();
        
        // 缩放
        final AnimatorSet animatorSet = new AnimatorSet();
        mScaleImage.setPivotX(mScaleImage.getWidth()+250);
        mScaleImage.setPivotY(mScaleImage.getHeight()+250);
        animatorSet.playTogether(
                ObjectAnimator.ofFloat(mScaleImage, "scaleX", 1, 0)
                        .setDuration(2000),
                ObjectAnimator.ofFloat(mScaleImage, "scaleY", 1, 0)
                        .setDuration(2000)
        );
        animatorSet.start();
        
        // 平移 translation
        final AnimatorSet translationAnimatorSet = new AnimatorSet();
        translationAnimatorSet.playTogether(
                ObjectAnimator.ofFloat(mTranslationImage, "translationX", 20, 100)
                        .setDuration(2000),
                ObjectAnimator.ofFloat(mTranslationImage, "translationY", 20,100)
                        .setDuration(2000)
        );
        translationAnimatorSet.start();
        
        // 利用 ObjectAnimator 实现旋转动画
        final AnimatorSet rotateAnimationSet = new AnimatorSet();
        rotateAnimationSet.playTogether(
                ObjectAnimator.ofFloat(mRotationImage, "rotation",0, 360)
                        .setDuration(2000)
        );
        rotateAnimationSet.start();
    }

 

 

例子：

 

   private void showLessImage() {
        // 缩放
        final AnimatorSet animatorSet = new AnimatorSet();
        animatorSet.playTogether(
                ObjectAnimator.ofFloat(layout_clear, "scaleX", 1, 0)
                        .setDuration(1000),
                ObjectAnimator.ofFloat(layout_clear, "scaleY", 1, 0)
                        .setDuration(1000)
        );
        animatorSet.start();
    }

    private void showClearImage(ImageView image) {
        image.setVisibility(View.VISIBLE);
        // 透明度动画
        ObjectAnimator.ofFloat(image, "alpha", 0, 0, 1)
                .setDuration(1000)
                .start();
    }

    private void showGoneImage(View view) {
        view.setVisibility(View.VISIBLE);
        // 透明度动画
        ObjectAnimator.ofFloat(view, "alpha", 1, 0, 0)
                .setDuration(1000)
                .start();
    }

    private void showViewToCenter(View view) {
        // 平移 translation
        final AnimatorSet translationAnimatorSet = new AnimatorSet();
        translationAnimatorSet.playTogether(
//                ObjectAnimator.ofFloat(view, "translationX", view.getX(), new WindowManagerUtils().getScreenHigh(this,"x")/2)
//                        .setDuration(1000),

//                ObjectAnimator.ofFloat(view, "translationY", 100,  new WindowManagerUtils().getScreenHigh(this,"y")/2)
                ObjectAnimator.ofFloat(view, "translationY", 0, -new WindowManagerUtils().getScreenHigh(this, "y") / 2 + 100)
                        .setDuration(1000)
        );
        translationAnimatorSet.start();
    }