Flutter捕获异常并通过Bugly上报的简单实现

一、Flutter全局异常的捕获 ，代码如下：

   //上报数据的方法
Future<Null> _reportError(dynamic error, dynamic stackTrace) async    {
  VIPFlutterCrashChannel.postException(error, stackTrace);
}

void main() {
  //注册Flutter框架的异常回调
  FlutterError.onError = (FlutterErrorDetails details) async {
  //把错误异常转发到Zone的错误回调
  Zone.current.handleUncaughtError(details.exception,     details.stack);
  };

  //runZone方法把runApp的运行放在Zone中，提供统一的异常回调
  runZoned<Future<Null>>(() async {
    runApp(DDApp());
  }, onError: (error, stackTrace) async {
    await _reportError(error, stackTrace);
  });

}

二、Flutter和宿主平台的通信的封装

    class VIPFlutterCrashChannel {
  //初始化通道
  static const MethodChannel _channel =
  const MethodChannel('vip_flutter_crash_channel');

   static void setUp(appID) {
   //使用app_id进行SDK注册
    _channel.invokeMethod("setUp",{'app_id':appID});
  }
  static void postException(error, stack) {
   //将异常和堆栈上报至Bugly
    _channel.invokeMethod("postException",    {'crash_message':error.toString(),'crash_detail':stack.toString()});
  }
}

三、在iOS、安卓实现Bugly上报：

iOS上的实现：

   - (void)configChannel {
NSString *channelName = @"vip_flutter_crash_channel";
self.messageChannel = [FlutterMethodChannel methodChannelWithName:channelName binaryMessenger:[YYTextWeakProxy proxyWithTarget:self]];
//flutter监听
//    FlutterEventChannel *evenChannal = [FlutterEventChannel eventChannelWithName:channelName binaryMessenger:self];
//    [evenChannal setStreamHandler:self];
@weakify(self);
[_messageChannel setMethodCallHandler:^(FlutterMethodCall* call, FlutterResult result) {
    @strongify(self);
    if([@"setUp" isEqualToString:call.method]) {
        //Bugly SDK初始化方法
        NSString *appID = call.arguments[@"app_id"];
        [Bugly startWithAppId:appID];
    } else if ([@"postException" isEqualToString:call.method]) {
      //获取Bugly数据上报所需要的各个参数信息
      NSString *message = call.arguments[@"crash_message"];
      NSString *detail = call.arguments[@"crash_detail"];

      NSArray *stack = [detail componentsSeparatedByString:@"\n"];
      //调用Bugly数据上报接口
      [Bugly reportExceptionWithCategory:4 name:message reason:stack[0] callStack:stack extraInfo:@{} terminateApp:NO];
      result(@0);
  }
  else {
    //方法未实现
    result(FlutterMethodNotImplemented);
  }
}];
}