新手求解,想实现组件在所有程序中一直置顶,可是却监听上加动画,却没有任何效果
android中程序开启时想实现组件所有程序中一直置顶,于是从网上找到了一个方法,可是却往上监听加动画,没有任何效果,但是remove(view)、ontouchListener()拖动却可以实现,如何才能实现动画呢?求解!这是onCreate里代码
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mWM =(WindowManager)getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
iv = new ImageView(this);
Bitmap bmp=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
iv.setImageBitmap(bmp);
iv.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
AnimationSet animationSet=new AnimationSet(true);
AlphaAnimation alphaAnimation=new AlphaAnimation(1,0);
alphaAnimation.setDuration(1000);
animationSet.addAnimation(alphaAnimation);
iv.startAnimation(animationSet);
}
});
wm = mWM;
wmParams = new WindowManager.LayoutParams();
mWMParams = wmParams;
wmParams.type = 2002; //type是关键,这里的2002表示系统级窗口,你也可以试试2003。
wmParams.format=1;
wmParams.flags= 40;
wmParams.width = 36;
wmParams.height =36;
wm.addView(iv, wmParams);
}
补充:移动开发 , Android