android - How to use less drawable resources as possible? -

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i'm trying make kind of quiz-app relative music field keep on showing random images , user takes answers. each answer check in database whether right or not. can see examples of mean here , here. problem should put in android project great number of images, suppose not good. i'm wondering if there way doing that, maybe using sample-images each element (a single note, single sharp, treble clef etc.) , fixing them toghether in way in order "build" final image.. don't know. , also, there way verify answers without internet connection? in advance.

you can make customview or views http://developer.android.com/training/custom-views/index.html , have draw differently, depending on you're trying convey. use background images, , draw lines. adding custom view , imageview single layout explains how include images in customview .


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