我正在尝试在 iOS 中使用 flutter 和 flutter_blue。
我收到每个 channel 的故障转储。我是新手,所以也许这是一个简单的问题。我知道人们使用这个库,所以它必须在我的使用中。奇怪的是,尽管选择了 channel ,但每次都会产生相同的故障转储。
重现步骤
OSX: Version 0.15.5 (19F101)
Xcode : Version 11.5 (11E608c)
使用主页上的示例和实际的 GitHub src 作为指南。这些网址:我已经尝试了每个 flutter channel 。每个 channel 产生相同的故障转储。
$ flutter channel stable
$ flutter upgrade
Flutter 1.17.4 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 1ad9baa8b9 (9 days ago) • 2020-06-17 14:41:16 -0700
Engine • revision ee76268252
Tools • Dart 2.8.4
$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.17.4, on Mac OS X 10.15.5 19F101, locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.5)
[✓] Android Studio (version 4.0)
[!] VS Code (version 1.24.1)
✗ Flutter extension not installed; install from
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (1 available)
! Doctor found issues in 1 category.
为简单起见,模仿这个例子。
$ flutter create flutter_blue_example
$ cd flutter_blue_example
$ open ios/Runner.xcworkspace/
选择 TARGETS: Runner 然后选择 General 选项卡以修改运行时 APIGeneral->Deployment Info->Target == iOS 13.5
选择 TARGETS: Runner,然后选择 Signing & Capabilities 选项卡以修改签名包标识符和团队名称。我注意到一些错误消息与 iOS 8.0 与 iOS 10.0 API 功能有关。因此,我选择了最新的 API iOS 13。
$ flutter run
dependencies:
flutter_blue: ^0.7.2
flutter:
sdk: flutter
$ cd lib
$ rm main.dart
$ curl https://raw.githubusercontent.com/pauldemarco/flutter_blue/master/example/lib/main.dart --output main.dart
$ curl https://raw.githubusercontent.com/pauldemarco/flutter_blue/master/example/lib/widgets.dart --output widgets.dart
每次我更改 channel 时,我都会执行相同的过程。
$ cd ..
# The rm iOS/Podfile command is only needed when
# switching to channel dev
# rm iOS/Podfile
$ flutter pub get
$ flutter clean
$ flutter run
Launching lib/main.dart on JFD_X in debug mode...
Automatically signing iOS for device deployment using specified development team in Xcode
project: Z84M4MZYKF
Running pod install... 1.6s
Running Xcode build...
└─Compiling, linking and signing... 14.3s
Xcode build done. 29.7s
Installing and launching... ⣻
在 iPhone 上,它会闪烁显示应用程序启动的屏幕,但很快就会返回主屏幕。提示永远不会返回,必须使用 ctrl-c
退出命令因为q
不响应。使用详细选项运行可提供此信息。
<stuff snipped>
[ +155 ms] success
[ ] (lldb) safequit
[ +109 ms] Process 20400 detached
[ +30 ms] Application launched on the device. Waiting for observatory port.
[ +9 ms] Attempting to forward device port 49232 to host port 1024
[ ] executing: /Users/davis/progs/flutter/flutter/bin/cache/artifacts/usbmuxd/iproxy 1024 49232
850f92882e33715d639b466a0ba9a01aeb601823
[+1011 ms] Forwarded port ForwardedPort HOST:1024 to DEVICE:49232
[ +17 ms] HttpException: Connection closed before full header was received, uri = http://localhost:1024/ws
[+2008 ms] HttpException: , uri = http://localhost:1024/ws
[+2007 ms] HttpException: , uri = http://localhost:1024/ws
[+2008 ms] HttpException: , uri = http://localhost:1024/ws
[+2011 ms] HttpException: , uri = http://localhost:1024/ws
[+2006 ms] Failed to connect directly, falling back to mDNS
[ +5 ms] Checking for advertised Dart observatories...
[+5020 ms] No pointer records found.
[ +2 ms] mDNS query failed. Checking for an interface with a ipv4 link local address.
[ +2 ms] Found interface "en0":
[ ] Bound address: "192.168.86.53"
[ ] Found interface "en5":
[ ] Bound address: "169.254.128.136" link local
[ ] An interface with an ipv4 link local address was found.
[ ] Failed to connect with mDNS, falling back to log scanning
再次打开 xcode 并尝试从 Xcode 运行。$ open ios/Runner.xcworkspace/
运行应用程序,它会提供以下故障转储channel 稳定
libsystem_kernel.dylib`__abort_with_payload:
0x1b44c97ec <+0>: mov x16, #0x209
0x1b44c97f0 <+4>: svc #0x80
-> 0x1b44c97f4 <+8>: b.lo 0x1b44c9810 ; <+36> Thread 3: signal SIGABRT
0x1b44c97f8 <+12>: stp x29, x30, [sp, #-0x10]!
0x1b44c97fc <+16>: mov x29, sp
0x1b44c9800 <+20>: bl 0x1b44a9ad0 ; cerror_nocancel
0x1b44c9804 <+24>: mov sp, x29
0x1b44c9808 <+28>: ldp x29, x30, [sp], #0x10
0x1b44c980c <+32>: ret
0x1b44c9810 <+36>: ret
版本检查huo-yang~/progs/flutter/flutter-testy/flutter_blue_example$ flutter --version
Flutter 1.17.4 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 1ad9baa8b9 (12 days ago) • 2020-06-17 14:41:16 -0700
Engine • revision ee76268252
Tools • Dart 2.8.4
channel 测试版给出与上面相同的堆栈跟踪。
版本检查
huo-yang~/progs/flutter/flutter-testy/flutter_blue_example$ flutter --version
Flutter 1.19.0-4.2.pre • channel beta • https://github.com/flutter/flutter.git
Framework • revision 9b9b543d92 (7 days ago) • 2020-06-22 12:19:28 -0700
Engine • revision 9a28c3bcf4
Tools • Dart 2.9.0 (build 2.9.0-14.1.beta)
channel 开发给出与上面相同的堆栈跟踪。
版本检查
$ flutter run --version
Flutter 1.20.0-2.0.pre • channel dev • https://github.com/flutter/flutter.git
Framework • revision 15a28159bc (6 days ago) • 2020-06-23 04:52:58 -0700
Engine • revision 91a63d6a44
Tools • Dart 2.9.0 (build 2.9.0-19.0.dev 7e72c9ae7e)
最佳答案
我尝试了 flutter_blue 至少两个月,但我无法以任何可靠的方式开始工作。我不想详细介绍,但是您可以在 flutter_blue github 存储库中搜索我的 ID 并获得一张不错的图片。
我终于切换到flutter_ble_lib https://pub.dev/packages/flutter_ble_lib
并让我所有的东西都在几天内工作。
我的代码非常抽象,切换库也没问题。一切都在 Android 和 IOS 上运行。试试看。
关于ios - 如何在 iOS 中使用 flutter_blue?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62638588/