Photo shows the problem on imageView

I now need a imageView now two pictures, which two overlapping displayed in android, I do to, imageView1.setImage = "1.png";
imageView1.setBackground = "2.png"
Since 1 and 2 two pictures are the background transparent, overlapping effect is visible.

But how to achieve the iphone, is no way, I set imageView background after the time set setImage settings will overwrite the background picture, how do I achieve this two pictures overlapping effect? ?
Reply:
Try switching button
Reply:

The reply was deleted at 2011-11-01 09:36:40 moderator

Reply:

cited a floor darkdong reply:

switch button to try

This issue is resolved, the two original iphone imageview can overlap, so you can display two overlapping figure, but still want to thank you
Reply:

The reply was deleted at the moderator 2011-12-15 09:37:50