I have a background that I need fit in all screen sizes. I have three folders, hdpi, ldpi and mdpi for drawables, but in the emulator there isn’t any referense to what resolution hdpi is and what mdpi and ldpi are.
I have a background that I need fit in all screen sizes. I have
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You should read Supporting multiple screens. You must define dpi on your emulator. 240 is hdpi, 160 is mdpi and below that are usually ldpi.
Extract from Android Developer Guide link above: