Flutter：在 iOS 中更改状态栏颜色

Question

我想用package:flutter/services.dart包更改状态栏颜色，但它不起作用。我正在使用 Mac 和 iOS 模拟器：

• 莫哈韦沙漠 10.14.6
• iOS 12.2 模拟器/Xr
• Flutter 1.9.1+hotfix.2
• 工具 • Dart 2.5.0

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {

    SystemChrome.setSystemUIOverlayStyle(
      SystemUiOverlayStyle(
        statusBarColor: Colors.red // <-- doesn't work
      )
    );

    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}
... // other stuff

即使我把它放在main函数中：

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  SystemChrome.setSystemUIOverlayStyle(
    SystemUiOverlayStyle(
      statusBarColor: Colors.red,
    )
  );
  SystemChrome.setPreferredOrientations(
      [DeviceOrientation.portraitUp, DeviceOrientation.portraitDown])
    .then((_) => runApp(MyApp()));
}
... // the rest code here

因此，如果我想将appBar背景颜色更改为白色，我就会得到这个。

还没有在安卓上测试过。这个问题只与iOS模拟器有关吗？如何解决？

UPD

这个问题开始让我发疯。

Answer 1

编辑：

appBar: AppBar(
  elevation: 0,
  brightness: Brightness.light, // this makes status bar text color black
  backgroundColor: Colors.white,
)

输出：

statusBarColor只能在 Android 中更改，而不能在 iOS 中更改，如果您尝试通过某些解决方法尝试这样做，Apple 可能会拒绝您的应用程序，因为他们不希望您拥有不同的AppBar状态栏颜色。

AppBar(backgroundColor: Colors.red) // this changes both AppBar and status bar color in iOS

苹果希望你坚持他们的设计，这就是为什么改变statusBarColor对 iOS 没有影响的原因。