尝试使用cached_network_image包。不要使用Image.network()，而是使用CachedNetworkImageProvider()。
preload(BuildContext context) {varconfiguration =createLocalImageConfiguration(context);for(varsrcin['图片地址','图片地址2','图片地址13']) {NetworkImage(src).resolve(configuration); } } 图片什么时候加载完成不用管。Flutter 会用 NetWorkImage 做 key,缓存图片,下次用 NetworkImage 加载同样的图片,无论...
不要使用Image.network()，而是使用CachedNetworkImageProvider()。
flutter pub add cached_network_image 1. 必须的参数只有一个 imageUrl。 MaterialApp( home: Scaffold( body: Center(child: CachedNetworkImage( imageUrl: imageSrc, )), )); 1. 2. 3. 4. 5. 6. cached_network_image 自带 fadeIn 的效果,在图片加载过程中显示 placeholder,出现错误,显示 errorWidget。
我正在flutter中开发一个应用程序,我正在使用一个预加载的页面视图和缓存的视频播放器插件来播放我的数据库中的urls视频,在播放了15到20个视频后,我的应用程序关闭了,logcat提示错误如下。我正在初始化initstate中的视频,并处理视频小部件。 视频小部件代码: @overr
To preload images: Step 1:Create a class calledAppImages. class AppImages { static const String imagesPath = “assets/images/”; static const String lion = imagesPath + “lion.png”; } Step 2:Get the Image reference. Image myImage; ...
But sometimes we want to preload assets to make them display faster. The PhotoCachingManager uses the PHCachingImageManager on iOS, and Glide's file cache on Android. Delete entities This method will delete the asset completely from your device. Use it with extra cautious. // Deleted IDs ...
I could try to preload the image but I did not find a way to preload the image before having a builder context. Steps to Reproduce Create new project, change launch image and launchscreen.storyboard in Xcode to show a background image. run the code: void main() { runApp(MyApp()); ...
通过Network 工具分析: 首屏页面总共发起 21 个 request,传输 7.3MB 数据,耗时 8.31s; 根据请求资源大小排序,main.dart.js传输 5.6M 资源耗时 5.22s,MaterialIcons-Regular.otf传输 1.6M 资源耗时 1.58s, 其它资源传输数据小耗时短。 由分析得出结论,在首屏渲染过程当中,因为等待资源文件加载、DOM 树构建、JS ...
dependencies:get:^3.26.0path_provider:^2.0.1color_thief_flutter:^1.0.2cached_network_image:^2.5.1flutter_placeholder_textlines:^1.0.4starry:path:starryshared_preferences:^2.0.4cookie_jar:^2.0.0encrypt:^3.0.0we_slide:^2.1.0pull_to_refresh:^1.6.5sleek_circular_slider:^2.0.0dots_indicator:^...