Java tutorial
//package com.java2s; /* * Copyright (c) 2017 by Tran Le Duy * * 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.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.net.Uri; import java.io.FileNotFoundException; public class Main { /** * Returns a BitmapFactory.Options object containing the size of the image at the given URI, * without actually loading the image. */ public static BitmapFactory.Options computeBitmapSizeFromURI(Context context, Uri imageURI) throws FileNotFoundException { BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; Bitmap bitmap = BitmapFactory.decodeStream(context.getContentResolver().openInputStream(imageURI), null, options); if (bitmap != null) { bitmap.recycle(); } return options; } }