Question

How to add the Floating snow effect in an activity which has done?

I use Canvas and 2D to make the Floating snow effect. But I use main.xml in my home page. I use

http://ask.csdn.net/questions/1246

But I check online the code is

PetalView pv = new PetalView(this);
setContentView(pv);

How to mix the two views together?

How to make the effect on the top and do not affect the operation of this activity page?

Answer 1

Start with a FrameLayout (it allows you to stack views):

    FrameLayout fl = new FrameLayout(this);        
    FrameLayout.LayoutParams params = new 
        FrameLayout.LayoutParams(FrameLayout.LayoutParams.FILL_PARENT, 
        FrameLayout.LayoutParams.FILL_PARENT);

Add your xml:

    LayoutInflater inflater = LayoutInflater.from(this);
    View mainView = inflater.inflate(R.layout.main, null);
    fl.addView(mainView);

Add your dynamic view with a transparent background:

    PetalView pv = new PetalView(this);
    pv.setBackgroundColor(0x00000000);
    fl.addView(pv);

    setContentView(fl);