Route管理

dependencies:
  get:

GetMaterialApp( // 変更前: MaterialApp(
  home: MyHome(),
)

Get.to(NextScreen());

Get.back();

Get.off(NextScreen());

Get.offAll(NextScreen());

var data = await Get.to(Payment());

Get.back(result: 'success');

if(data == 'success') madeAnything();

// 通常のFlutterによるNavigator
Navigator.of(context).push(
  context,
  MaterialPageRoute(
    builder: (BuildContext context) {
      return HomePage();
    },
  ),
);

// GetではFlutterのシンタックスをcontextなしで使えます
navigator.push(
  MaterialPageRoute(
    builder: (_) {
      return HomePage();
    },
  ),
);

// Getのシンタックス（上記よりかなり短いですね）
Get.to(HomePage());

Get.toNamed("/NextScreen");

Get.offNamed("/NextScreen");

Get.offAllNamed("/NextScreen");

void main() {
  runApp(
    GetMaterialApp(
      initialRoute: '/',
      getPages: [
        GetPage(name: '/', page: () => MyHomePage()),
        GetPage(name: '/second', page: () => Second()),
        GetPage(
          name: '/third',
          page: () => Third(),
          transition: Transition.zoom
        ),
      ],
    )
  );
}

void main() {
  runApp(
    GetMaterialApp(
      unknownRoute: GetPage(name: '/notfound', page: () => UnknownRoutePage()),
      initialRoute: '/',
      getPages: [
        GetPage(name: '/', page: () => MyHomePage()),
        GetPage(name: '/second', page: () => Second()),
      ],
    )
  );
}

Get.toNamed("/NextScreen", arguments: 'Get is the best');

print(Get.arguments);
// Get is the best が表示される

Get.offAllNamed("/NextScreen?device=phone&id=354&name=Enzo");

print(Get.parameters['id']);
// 出力: 354
print(Get.parameters['name']);
// 出力: Enzo

void main() {
  runApp(
    GetMaterialApp(
      initialRoute: '/',
      getPages: [
      GetPage(
        name: '/',
        page: () => MyHomePage(),
      ),
      GetPage(
        name: '/profile/',
        page: () => MyProfile(),
      ),
       // 引数userを使う場合と使わない場合で別ページを定義することが可能です。
       // ただ、そのためにはスラッシュ '/' をベースのRoute名の後に入れる必要があります。
       GetPage(
        name: '/profile/:user',
        page: () => UserProfile(),
      ),
      GetPage(
        name: '/third',
        page: () => Third(),
        transition: Transition.cupertino
      ),
     ],
    )
  );
}

Get.toNamed("/profile/34954");

print(Get.parameters['user']);
// out: 34954

Get.toNamed("/profile/34954?flag=true&country=italy");

var parameters = <String, String>{"flag": "true","country": "italy",};
Get.toNamed("/profile/34954", parameters: parameters);

print(Get.parameters['user']);
print(Get.parameters['flag']);
print(Get.parameters['country']);
// 出力: 34954 true italy

GetMaterialApp(
  routingCallback: (routing) {
    if(routing.current == '/second'){
      openAds();
    }
  }
)

void main() {
  runApp(
    MaterialApp(
      onGenerateRoute: Router.generateRoute,
      initialRoute: "/",
      navigatorKey: Get.key,
      navigatorObservers: [
        GetObserver(MiddleWare.observer), // ここ
      ],
    ),
  );
}

class MiddleWare {
  static observer(Routing routing) {
    /// Routeの他に SnackBar / Dialog / BottomSheet のイベントも監視することができます。
    /// また、ここで直接この3つのいずれかを表示したい場合は、
    /// イベント自身が「それではない」ことを事前にチェックする必要があります。
    if (routing.current == '/second' && !routing.isSnackbar) {
      Get.snackbar("Hi", "You are on second route");
    } else if (routing.current =='/third'){
      print('last route called');
    }
  }
}

class First extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        leading: IconButton(
          icon: Icon(Icons.add),
          onPressed: () {
            Get.snackbar("hi", "i am a modern snackbar");
          },
        ),
        title: Text('First Route'),
      ),
      body: Center(
        child: ElevatedButton(
          child: Text('Open route'),
          onPressed: () {
            Get.toNamed("/second");
          },
        ),
      ),
    );
  }
}

class Second extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        leading: IconButton(
          icon: Icon(Icons.add),
          onPressed: () {
            Get.snackbar("hi", "i am a modern snackbar");
          },
        ),
        title: Text('second Route'),
      ),
      body: Center(
        child: ElevatedButton(
          child: Text('Open route'),
          onPressed: () {
            Get.toNamed("/third");
          },
        ),
      ),
    );
  }
}

class Third extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Third Route"),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: () {
            Get.back();
          },
          child: Text('Go back!'),
        ),
      ),
    );
  }
}

final snackBar = SnackBar(
  content: Text('Hi!'),
  action: SnackBarAction(
    label: 'I am a old and ugly snackbar :(',
    onPressed: (){}
  ),
);
// WidgetツリーでScaffoldを探し、それをSnackBar表示に使用します。
Scaffold.of(context).showSnackBar(snackBar);

Get.snackbar('Hi', 'i am a modern snackbar');

Get.snackbar(
  "Hey i'm a Get SnackBar!", // タイトル
  "It's unbelievable! I'm using SnackBar without context, without boilerplate, without Scaffold, it is something truly amazing!", // 本文
  icon: Icon(Icons.alarm),
  shouldIconPulse: true,
  onTap:(){},
  barBlur: 20,
  isDismissible: true,
  duration: Duration(seconds: 3),
);


  ////////// すべてのプロパティ //////////
  //     Color colorText,
  //     Duration duration,
  //     SnackPosition snackPosition,
  //     Widget titleText,
  //     Widget messageText,
  //     bool instantInit,
  //     Widget icon,
  //     bool shouldIconPulse,
  //     double maxWidth,
  //     EdgeInsets margin,
  //     EdgeInsets padding,
  //     double borderRadius,
  //     Color borderColor,
  //     double borderWidth,
  //     Color backgroundColor,
  //     Color leftBarIndicatorColor,
  //     List<BoxShadow> boxShadows,
  //     Gradient backgroundGradient,
  //     TextButton mainButton,
  //     OnTap onTap,
  //     bool isDismissible,
  //     bool showProgressIndicator,
  //     AnimationController progressIndicatorController,
  //     Color progressIndicatorBackgroundColor,
  //     Animation<Color> progressIndicatorValueColor,
  //     SnackStyle snackStyle,
  //     Curve forwardAnimationCurve,
  //     Curve reverseAnimationCurve,
  //     Duration animationDuration,
  //     double barBlur,
  //     double overlayBlur,
  //     Color overlayColor,
  //     Form userInputForm
  ///////////////////////////////////

Get.dialog(YourDialogWidget());

Get.defaultDialog(
  onConfirm: () => print("Ok"),
  middleText: "Dialog made in 3 lines of code"
);

Get.bottomSheet(
  Container(
    child: Wrap(
      children: <Widget>[
        ListTile(
          leading: Icon(Icons.music_note),
          title: Text('Music'),
          onTap: () {}
        ),
        ListTile(
          leading: Icon(Icons.videocam),
          title: Text('Video'),
          onTap: () {},
        ),
      ],
    ),
  )
);

Navigator(
  key: Get.nestedKey(1), // インデックス指定でkey作成
  initialRoute: '/',
  onGenerateRoute: (settings) {
    if (settings.name == '/') {
      return GetPageRoute(
        page: () => Scaffold(
          appBar: AppBar(
            title: Text("Main"),
          ),
          body: Center(
            child: TextButton(
              color: Colors.blue,
              onPressed: () {
                Get.toNamed('/second', id:1); // インデックス指定でネスト型Routeに遷移
              },
              child: Text("Go to second"),
            ),
          ),
        ),
      );
    } else if (settings.name == '/second') {
      return GetPageRoute(
        page: () => Center(
          child: Scaffold(
            appBar: AppBar(
              title: Text("Main"),
            ),
            body: Center(
              child:  Text("second")
            ),
          ),
        ),
      );
    }
  }
),