Java tutorial
//package com.java2s; /* * Copyright (C) 2016 Jorge Ruesga * * 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.BitmapFactory; import android.graphics.BitmapFactory.Options; import java.io.File; public class Main { public static int[] decodeBitmapSize(File file) { // First decode with inJustDecodeBounds=true to check dimensions final Options options = new Options(); options.inScaled = false; options.inPreferredConfig = Bitmap.Config.ARGB_8888; options.inJustDecodeBounds = true; BitmapFactory.decodeFile(file.getAbsolutePath(), options); return new int[] { options.outWidth, options.outHeight }; } }