Flutter Http 请求未在 iOS 上执行

Question

这是我的应用程序为了登录用户而执行的第一个请求。在 android 上，每个请求都可以正常工作，但由于某种原因，在 iOS 上它们似乎没有被执行。我已经在模拟器上设置了开发人员选项以允许 HTTP 服务。我还在物理 iPad 上测试了代码，它不会执行请求。

在测试期间，我没有为此使用任何超时，如果我在触发请求后让代码运行一段时间，我会收到此日志（它可能与此无关，但因为我不知道它是什么，我也会附上）：

[C1.1 958047F2-81ED-4A34-AEDE-A23D2CD6B49F 172.20.129.134:51780<->216.58.211.42:443]
Connected Path: satisfied (Path is satisfied), interface: en0
Duration: 240.322s, DNS @0.002s took 0.008s, TCP @0.017s took 0.014s, TLS took 0.287s
bytes in/out: 4769/1077, packets in/out: 9/10, rtt: 0.016s, retransmitted packets: 1, out-of-order packets: 0

这是代码：

Future<LoginResponse> login(String login, String password, AppLocalizations locale) async {

    final response = await http.post(_url, body: {
      "module": _moduleLogin,
      "user": login,
      "pass": password,
      "lang": locale.localeName
    });

    try{
      EventManager manager = EventManager.getInstance();
      manager.clearAllEvents();
    }catch(e){
      print(e);
    }

    if (response.statusCode == 200) {
      return LoginResponse.fromJson(jsonDecode(response.body));
    } else {
      throw Exception('Failed to connect to webservice');
    }}

在这一点上，我不知道是什么导致了这个问题。我正在使用最新版本的http软件包。

这是我的颤振医生输出：

[?] Flutter (Channel beta, v0.9.4, on Mac OS X 10.14 18A391, locale es-ES)
    • Flutter version 0.9.4 at /Users/alex/Documents/Development/flutter
    • Framework revision f37c235c32 (4 months ago), 2018-09-25 17:45:40 -0400
    • Engine revision 74625aed32
    • Dart version 2.1.0-dev.5.0.flutter-a2eb050044

[?] Android toolchain - develop for Android devices (Android SDK 27.0.3)
    • Android SDK at /Users/alex/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 27.0.3
    • ANDROID_HOME = /Users/alex/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
    • All Android licenses accepted.

[?] iOS toolchain - develop for iOS devices (Xcode 10.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 10.1, Build version 10B61
    • ios-deploy 1.9.2
    • CocoaPods version 1.5.3

[?] Android Studio (version 3.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 26.0.1
    • Dart plugin version 173.4700
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[?] IntelliJ IDEA Ultimate Edition (version 2018.1.1)
    • IntelliJ at /Applications/IntelliJ IDEA.app
    • Flutter plugin version 26.0.2
    • Dart plugin version 181.4445.29

[?] VS Code (version 1.30.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 2.21.1

[?] Connected devices (1 available)
    • iPhone XS • 5FB9A137-7AB3-46B5-94BC-9562B0E5E752 • ios • iOS 12.1 (simulator)

• No issues found!

Answer 1

找到了一个解决方案，尽管我不知道它为什么有效。

我http用包替换了包dio，它在两个平台上都运行良好。