android - "return of graph.facebook api image as byte[]" VS "Bitmap compressed as byte[]" -

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when image graph.facebook api, can easyly converted bitmap structure:

bitmap bitmap = bitmapfactory.decodebytearray(src , 0, src .length);

but after picture gallery , compress send server db byte[], there problem while decoding same function.

bitmap bitmap = getimagefromgallery(); bytebuffer buffer = bytebuffer.allocate(bitmap.getbytecount()); bitmap.copypixelstobuffer(buffer); byte[] result = buffer.array();

and facebook's image sizes more smaller mines, though dimensions same.

why happening? how can compress images bitmap byte[] facebook's format?


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