android - Scaling and overlapping ImageViews -


i bit of android noob, , have been struggling problem far long.

what i'm aiming for: 2 imageviews. first width of screen, , drawn match proportions of src image (so far easy). second imageview needs scaled, width fixed multiple (between 0 , 1) of first image. need able touch-drag second smaller image around on top of first, fixed image, although part not point of question.

this done programmatically, src images , scale multiple not known until runtime.

what i've tried: can overlay 2 imageviews in relativelayout, using alignparenttop , on. works fine, can't see how scale images in case.

i can alternatively scale 2 imageviews using linearlayout, setting layout_weights 1 , scale multiple respectively. in case can't images overlapping (not strictly true - have managed negative margins, hacky solution , make impossible implement movement of top image later).

so question is: there way fix either of 2 solutions have tried implement? or there perhaps better way approach problem? (i'm not looking answer in code, approach should take)


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