Performance with a lot of graphics on smartphones

I'm looking for some advice regarding recent smartphones, Im working on android, so if anyone has specific info regarding that platform it would be appreciated.

Im about to start work on a particluar section of my app which may require a lot of images on screen, possibly 30 at once. Potentially I could put in some heavy processing and reduce this.

I've not really had a chance to work on a lot of mobiles, and I understand 开发者_如何转开发they ovbiously vary wildly, so I was hoping if anyone has had experience in testing graphics like this, what would be the best method in terms of performance.

Thanks in advance.

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Well OpenGLES will give you the best performance. However it may be complete overkill depending on how large the images are, what format and how much they move.