How to check the type of a view widget?

How to get that working:

 if(findViewById(ResIdWithUnkownType) instanceof Bitmap)
 {
       Bitmap bitmap = (Bitmap) fi开发者_运维知识库ndViewById(ResIdWithUnkownType);
 } else if(findViewById(ResIdWithUnkownType) instanceof ImageView)
 {
       ImageView = (ImageView) findViewById(ResIdWithUnkownType);
 }

The second block would work just fine. The problem is the first one: findViewById returns a View object always, and Bitmap is not a View, so the first if statement will never be executed.

This is not the answer but For Others who check this Question,in some cases instanceof does not work(I do not know why!),for example if your want to check if view type is ImageView or ImageButton(i tested this situation) , it get them the same, so you scan use this way :

//v is your View
    if (v.getClass().getName().equalsIgnoreCase("android.widget.ImageView")) {
        Log.e("imgview", v.toString());
        imgview = (ImageView) v;
    } else if (v.getClass().getName().equalsIgnoreCase("android.widget.ImageButton")) {
        Log.e("imgbtn", v.toString());
        imgbtn = (ImageButton) v; 
    }