Query query = usersRef.where('age', isGreaterThanOrEqualTo: 18); 然后,你可以使用snapshots方法来监听查询结果的变化,并在StreamBuilder中使用它。snapshots方法返回一个Stream<QuerySnapshot>,你可以通过监听这个流来获取查询结果的更新。例如...
web, and desktop from a single codebase. Using the Dart programming language, Flutter provides a rich set of pre-designed widgets and tools, enabling the creation of visually attractive and highly efficient user interfaces. Its ability to compile...
想多造一些测试数据，表中字段又多一个个敲很麻烦，导出表中部分字段数据又不想导出ID字段（因为ID字段...
Use string builder instead of string Autoboxing Let’s take a closer look at how to Check and Improve android app performance 1. Reduce Application Size One of the easiest way to improve yourandroid app performanceis by reducing the size of your application. Users in emerging markets, whether ...
Use Stream & StreamBuilder To Output Changes In RealTime We can simply use the streams for this. So, we'll connect with Firesotre with streams and update the screen with StreamBuilder. So, where exactly are we using this StreamBuilder? Good question, you see getting real-time updates, mea...
voidmain()async{// Normal initializationWidgetsFlutterBinding.ensureInitialized();awaitFirebase.initializeApp(options:DefaultFirebaseOptions.currentPlatform,);// 1. Create a ProviderContainerfinalcontainer=ProviderContainer();// 2. Use it to read the providercontainer.read(dynamicLinksServiceProvider);// 3...
Flutter Docs - Simple app state management Stream Builder in Flutter Making sense of all those Flutter Providers Flutter Provider - Advanced Firebase Data ManagementIf this feels a little bit overwhelming, don't feel discouraged. Many times I was stuck, but once I understood a new concept I ...
These stats show that the use of a smartphone is extremely high at the moment. Hence, it is the ideal time to build a live streaming app. The application will keep the users away from sitting in front of their TV and still let them watch their favorite show. ...
Version 1.2.0 Environment that reproduces the issue android and ios Use case description If you have time to add the beauty function? Proposed solution 1 Alternative solutions 1
We will now go ahead to create a simple Flutter app. In which we will implement the CRUD APIs. At the end of this tutorial, we should be able to: GET - Get all Users POST - Create New User PUT - Update User data DELETE - Delete User data We will use: the REQ | RES API...