React Native Native模块实现邻近性

Question

我正在尝试为react创建原生模块来监听接近感应器，因为许多开源包现在都不支持。我尝试了IOS的React Native文档，但我不知道obj-c，而且我没有足够的时间来学习所有这些工作人员。谁能告诉我在下面的代码中我做错了什么，并提供一些更好的解决方案？

#import "RCTProximityModule.h"
#import <React/RCTBridge.h>
#import <React/RCTEventDispatcher.h>
#import <React/RCTLog.h>
@implementation RCTProximityModule

- (NSArray<NSString *> *)supportedEvents {
    return @[@"proximityChange"];
}
- (void) activateProximitySensor {
    UIDevice *device = [UIDevice currentDevice];
    device.proximityMonitoringEnabled = YES;
    if (device.proximityMonitoringEnabled == YES) {
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(proximityChanged:) name:@"UIDeviceProximityStateDidChangeNotification" object:device];
    }
}

- (void) proximityChanged:(NSNotification *)notification {
    UIDevice *device = [notification object];
  bool proximityState = device.proximityState;
  RCTLogInfo(@"prox state");
  RCTLogInfo(proximityState ? @"prox true" : @"prox false");
  [self sendEventWithName:@"proximityChange" body:@{@"name": proximityState}];
}

RCT_EXPORT_MODULE(ProximityModule);
@end

Answer 1

通过改用本机模块的swift语言解决了这个问题。它更清晰，更类似于现代高级语言。要配置swift模块，只需查看React原生文档或本教程：https://teabreak.e-spres-oh.com/swift-in-react-native-the-ultimate-guide-part-1-modules-9bb8d054db03#f662