i need android java developer for done a littel task.

i am stuck on one issue i want to get image from url convert it to bitmap and then match this pixel to other picture every thing done me get image url using api pixel match code also done just issue when get url image it take a littel time so that way app crash. me try to use thread but it not worked. if you able to done this then do it for me its only 30 minutes work for any expert.