React Native Module中的EADemo永远不会收到委托方法handleEvent NSStreamEventOpenCompleted？
我希望我有一个反应本机桥模块 ，线程，委托或生命周期问题，我不明白这是阻止接收委托方法调用。
我是否需要更改NSStream scheduleInRunLoop方法？
我正在尝试实现一个react本机iOS桥接模块，以基于Apple的EADemo示例连接蓝牙“经典”（非BLE） 外部附件 。 EADemo工作得很好。
当我从react native bridge方法调用EADSessionController openSession时 ，从不调用handleEvent方法？
我希望handleEvent接收inputStream和outputStream的NSStreamEventOpenCompleted事件。 但是接收零事件。
文件：index.js
'use strict'; var RNBluetooth = require('react-native').NativeModules.RNBluetooth; var Bluetooth = { connectTo(accessory, result) { RNBluetooth.connectTo(accessory, result); }, }; module.exports = Bluetooth; 文件：RNBluetooth.m
// open the external accesssory session from javascript RCT_EXPORT_METHOD(connectTo:(NSDictionary *)accessoryProperties callback:(RCTResponseSenderBlock)callback) { // findAccessory returns the EAAccessory matching the accessoryProperties EAAccessory * accessory = [self findAccessory:accessoryProperties]; if(nil != accessory) { NSLog(@"Connect to: {%@}", accessoryProperties[@"name"]); NSLog(@"name: {%@}", accessory.name); NSLog(@"serialNumber: {%@}", accessory.serialNumber); NSLog(@"connectionID: {%d}", (int)accessory.connectionID); } // Singleton EADSessionController * eaSessionController = [EADSessionController sharedController]; [eaSessionController setupControllerForAccessory:accessory withProtocolString:accessoryProperties[@"protocolStrings"]]; [eaSessionController openSession]; NSString *dummyResponseString = @"openSession"; callback(@[dummyResponseString]); }
文件： EADSessionController.m
#import "EADSessionController.h" NSString *EADSessionDataReceivedNotification = @"EADSessionDataReceivedNotification"; @implementation EADSessionController @synthesize accessory = _accessory; @synthesize protocolString = _protocolString; #pragma mark Internal #pragma mark Public Methods + (EADSessionController *)sharedController { static EADSessionController *sessionController = nil; if (sessionController == nil) { sessionController = [[EADSessionController alloc] init]; } return sessionController; } - (void)dealloc { [self closeSession]; [self setupControllerForAccessory:nil withProtocolString:nil]; [super dealloc]; } // initialize the accessory with the protocolString - (void)setupControllerForAccessory:(EAAccessory *)accessory withProtocolString:(NSString *)protocolString { [_accessory release]; _accessory = [accessory retain]; [_protocolString release]; _protocolString = [protocolString copy]; } // open a session with the accessory and set up the input and output stream on the default run loop - (BOOL)openSession { [_accessory setDelegate:self]; _session = [[EASession alloc] initWithAccessory:_accessory forProtocol:_protocolString]; if (_session) { [[_session inputStream] setDelegate:self]; [[_session inputStream] scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [[_session inputStream] open]; [[_session outputStream] setDelegate:self]; [[_session outputStream] scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [[_session outputStream] open]; } else { NSLog(@"creating session failed"); } return (_session != nil); } // close the session with the accessory. - (void)closeSession { [[_session inputStream] close]; [[_session inputStream] removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [[_session inputStream] setDelegate:nil]; [[_session outputStream] close]; [[_session outputStream] removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [[_session outputStream] setDelegate:nil]; [_session release]; _session = nil; [_writeData release]; _writeData = nil; [_readData release]; _readData = nil; } #pragma mark EAAccessoryDelegate - (void)accessoryDidDisconnect:(EAAccessory *)accessory { // do something ... } #pragma mark NSStreamDelegateEventExtensions // handleEvent never gets called when session opened from react native bridge? // // asynchronous NSStream handleEvent method - (void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode { switch (eventCode) { case NSStreamEventNone: break; case NSStreamEventOpenCompleted: break; case NSStreamEventHasBytesAvailable: [self _readData]; break; case NSStreamEventHasSpaceAvailable: [self _writeData]; break; case NSStreamEventErrorOccurred: break; case NSStreamEventEndEncountered: break; default: break; } } @end
任何提示或建议都非常感谢。
解决了。
将其添加到RNBluetooth.m
// This seems to get NSStream handleEvents and the write command // running on the same thread with no contention problems // writing to and reading from the write buffer - (dispatch_queue_t)methodQueue { return dispatch_get_main_queue(); }
请参阅本机模块下的线程部分
现在可以从react本机桥接模块调用EADemo示例中的EADSessionController.m ，没有任何问题。