WindowManager上添加的动画视图

Question

我有一个视图(customView)添加到WindowManager.

WindowManager mWm = (WindowManager)activity.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
WindowManager.LayoutParams(WindowManager.LayoutParams.FILL_PARENT, 0, PixelFormat.TRANSPARENT);
mWl.dimAmount = 0.0f;
mWm.addView(customView, mWl);

在自定义视图中,我会在按下关闭按钮时调用翻译动画.

////这是动画的处理程序////

final Handler translateHandler = new Handler();

final Runnable mtranslateUp = new Runnable() {
    public void run() {
        Log.v("TEST","mtranslateUp Runnable");
        startAnimation(translateUp);
    }
};

////这是关闭按钮的监听器////

View.OnClickListener closeButtonListener = new View.OnClickListener() {         

    public void onClick(View v) {
        translateHandler.post(mtranslateUp);
    }
};

////这是翻译动画////

translateUp = new TranslateAnimation(0,0,0,-200);
translateUp.setFillAfter(true);
translateUp.setDuration(1000);
translateUp.setAnimationListener(new AnimationListener(){
        @Override
        public void onAnimationEnd(Animation animation) {
            Log.v("TEST","translateUp onAnimationEnd");
        }

        @Override
        public void onAnimationRepeat(Animation animation) {
        }

        @Override
        public void onAnimationStart(Animation animation) {
            Log.v("TEST","translateUp onAnimationStart");
        }}
    );

如果将customView添加到活动中,这些代码可以正常工作!

将customView添加到WindowManager时,onAnimationStart中的Log未显示,但可以显示Runnable中的Log.

任何人都可以告诉如何在添加到WindowManager的视图上做动画吗？

Answer 1

您应该为视图LayoutParameters设置动画.例如,我使用一种方法来更新视图布局:

    public void updateViewLayout(View view, Integer x, Integer y, Integer w, Integer h){
    if (view!=null) {
        WindowManager.LayoutParams lp = (WindowManager.LayoutParams) view.getLayoutParams();

        if(x != null)lp.x=x;
        if(y != null)lp.y=y;
        if(w != null && w>0)lp.width=w;
        if(h != null && h>0)lp.height=h;

        mWindowService.updateViewLayout(view, lp);
    }
}

显然mWindowService是context.getSystemService(Context.WINDOW_SERVICE).我在动画中触发此方法:

    public static void overlayAnimation(final View view2animate, int viewX, int endX) {
    ValueAnimator translateLeft = ValueAnimator.ofInt(viewX, endX);
    translateLeft.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator valueAnimator) {
            int val = (Integer) valueAnimator.getAnimatedValue();
            updateViewLayout(view2animate, val, null, null, null);

        }
    });
    translateLeft.setDuration(ANIMATION_DURATION);
    translateLeft.start();
}

Answer 2

我在WindowManager附带的View中遇到了类似的问题.尝试将ViewGroup直接添加到WindoManager而不是View.它应该工作.