Why Can not see the preview of this image in android studio?

Question

I dont know why I can not use this image.

The image is a 200x200px .png file

This is how looks in android studio,

Answer 1

So I can see that you want to store a bunch of that image in an array called data . I think the image you want to use is called ll.png . But you used

R.drawable.ic_launcher

to refer to it. I don't know who would ever use "ic_launcher" to mean "ll". You should refer to that ll.png like this:

R.drawable.ll

I mean that is the most logical thing to do, right?

Answer 2

当图像太大（kb大小）时，看不到ic_launcher之类的预览，但仍能正常工作。