// Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. part of flutter_sprites; class ImageMap { ImageMap(AssetBundle bundle) : _bundle = bundle; final AssetBundle _bundle; final Map<String, ui.Image> _images = new Map<String, ui.Image>(); Future<List<ui.Image>> load(List<String> urls) { return Future.wait(urls.map(_loadImage)); } Future<ui.Image> _loadImage(String url) async { ui.Image image = (await _bundle.loadImage(url).first).image; _images[url] = image; return image; } ui.Image getImage(String url) => _images[url]; ui.Image operator [](String url) => _images[url]; }