Java tutorial
//package com.java2s; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.InputStream; import android.graphics.Bitmap; public class Main { /** * convert Bitmap to InputStream */ public static InputStream bitmapToStream(Bitmap bitmap, Bitmap.CompressFormat compressFormat) { ByteArrayOutputStream bos = new ByteArrayOutputStream(); bitmap.compress(compressFormat, 100, bos); return new ByteArrayInputStream(bos.toByteArray()); } }