Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { public static Bitmap PicZoom(Bitmap bmp, int width, int height) { int bmpWidth = bmp.getWidth(); int bmpHeght = bmp.getHeight(); Matrix matrix = new Matrix(); matrix.postScale((float) width / bmpWidth, (float) height / bmpHeght); return Bitmap.createBitmap(bmp, 0, 0, bmpWidth, bmpHeght, matrix, true); } }