Flutter基础widgets教程-MaterialApp篇

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, 
})

title:Text("Flutter Demo"),

home: MyApp(),

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