Question

在通话过程中最小化Skype应用后，Skype如何管理主屏幕上显示的视频通话拖动功能。您可以从主屏幕选择并启动其他应用程序，Skype弹出窗口仍然在屏幕上，甚至与其他应用程序并行。如果是App小部件，那么如何在主屏幕上和其他应用程序UI中添加或删除。

Answer 1

使用WindowManager添加Float视图：

private void createFloatView()
{
    Button btn_floatView = new Button();
    btn_floatView = new Button(getApplicationContext());
    btn_floatView.setText("FloatView");

    wm = (WindowManager) getApplicationContext().getSystemService(
            Context.WINDOW_SERVICE);
    params = new WindowManager.LayoutParams();
    params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
    params.format = PixelFormat.RGBA_8888;

    params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
            | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;

    params.width = 100;
    params.height = 100;

    btn_floatView.setOnTouchListener(new OnTouchListener()
    {
        int lastX, lastY;
        int paramX, paramY;

        public boolean onTouch(View v, MotionEvent event)
        {
            switch (event.getAction())
            {
            case MotionEvent.ACTION_DOWN:
                lastX = (int) event.getRawX();
                lastY = (int) event.getRawY();
                paramX = params.x;
                paramY = params.y;
                break;
            case MotionEvent.ACTION_MOVE:
                int dx = (int) event.getRawX() - lastX;
                int dy = (int) event.getRawY() - lastY;
                params.x = paramX + dx;
                params.y = paramY + dy;
                wm.updateViewLayout(btn_floatView, params);
                break;
            }
            return true;
        }
    });

    wm.addView(btn_floatView, params);
    isAdded = true;
}

最小化应用后，Android在主屏幕上显示视频，如Skype

1 个答案: