Flutter基础widgets教程-MaterialApp篇

1 MaterialApp

MaterialApp 是我们app开发中常用的符合MaterialApp Design设计理念的入口Widget。 

2 构造函数

       MaterialApp({
         Key key,
        this.title = '',
        this.home,
        this.color,
        this.theme,
        this.routes = const <String, WidgetBuilder>{},
        this.navigatorKey,
        this.initialRoute,
        this.onGenerateRoute,
        this.onUnknownRoute,
        this.navigatorObservers = const <NavigatorObserver>[],
        this.builder,
        this.onGenerateTitle,
        this.locale,
        this.localizationsDelegates,
        this.localeListResolutionCallback,
        this.localeResolutionCallback,
        this.supportedLocales = const <Locale>[Locale('en', 'US')],
        this.debugShowMaterialGrid = false,
        this.showPerformanceOverlay = false,
        this.checkerboardRasterCacheImages = false,
        this.checkerboardOffscreenLayers = false,
        this.showSemanticsDebugger = false,
        this.debugShowCheckedModeBanner = true,
       })
   
  

   
  
  

3 常用属性

3.1 title：安卓手机任务管理页面所看到应用的名字

title:Text("Flutter Demo"),
  

3.2 home：app运行时打开的首页面

home: MyApp(),
  

3.3 routes：定义路由

内容为map健值对；key为路由名称，value为路由对应的页面。页面需要跳转时，可以通过Navigator.pushNamed(context, 'rooteName');来跳转,

3.4 theme：定义主题**

       theme: ThemeData(
           primaryColor: Colors.red,
       ),