Java tutorial
//package com.java2s; /* * Copyright (c) 2016 Nick Guo * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.graphics.Bitmap; import android.graphics.Matrix; import android.support.annotation.NonNull; public class Main { public static Bitmap scale(@NonNull Bitmap in, float wRadius, float yRadius) { Matrix matrix = new Matrix(); matrix.postScale(wRadius, yRadius); return Bitmap.createBitmap(in, 0, 0, in.getWidth(), in.getHeight(), matrix, true); } }