MainActivity.java 文件源码

private void initListener() {
        mDragLayout.setDragStatusListener(new OnDragStatusChangeListener() {

            @Override
            public void onOpen() {
                Utils.showToast(MainActivity.this, "onOpen");
                // 左面板ListView随机设置一个条目
                Random random = new Random();
                Log.i(TAG, "onOpen:=" +mDragLayout.getRange());
                int nextInt = random.nextInt(50);
                mLeftList.smoothScrollToPosition(nextInt);

            }

            @Override
            public void onDraging(float percent) {
                Log.d(TAG, "onDraging: " + percent);// 0 -> 1
                // 更新图标的透明度
                // 1.0 -> 0.0
                ViewHelper.setAlpha(mHeaderImage, 1 - percent);
            }

            @Override
            public void onClose() {
                Utils.showToast(MainActivity.this, "onClose");
                // 让图标晃动
//              mHeaderImage.setTranslationX(translationX)
                ObjectAnimator mAnim = ObjectAnimator.ofFloat(mHeaderImage, "translationX", 15.0f);
                mAnim.setInterpolator(new CycleInterpolator(4));
                mAnim.setDuration(500);
                mAnim.start();
            }
        });
    }