2.解析uri,从namespaceMap中根据module获取最终AbstractBridgeModule的实现类
3.通过方法注解
https://blog.csdn.net/carson_ho/article/details/64904691
shouldOverrideUrlLoading调用时机：二级链接
ReactEventEmit.h
#import <React/RCTEventEmitter.h>
#import <React/RCTBridgeModule.h>
@interface ReactEventEmit : RCTEventEmitter<RCTBridgeModule>
-(void)goToCashier:(NSString*) result
@end
ReactEventEmit.m
#import "ReactEventEmit.h"
@implementation ReactEventEmit
@synthesize bridge = _bridge
RCT_EXPORT_MODULE(ReactEventEmit)
+ (id)allocWithZone:(NSZone*)zone {
staticReactEventEmit*sharedInstance =nil
staticdispatch_once_tonceToken
dispatch_once(&onceToken, ^{
sharedInstance = [superallocWithZone:zone]
})
returnsharedInstance
}
-(NSArray *)supportedEvents{
return @[@"goToCashier"]
}
-(void)goToCashier:(NSString*) result
{
NSLog(@"======== cashierSuccess ========== %@",result)
[self sendEventWithName:@"goToCashier" body:@{@"result": result}]
}
@end
RN的module初始化是由RN内部实现的，所以我们调用这个实例的时候，必须是这样子：
ReactEventEmit *emit = [ReactEventEmit allocWithZone:nil]
[emit goToCashier:@"fail"]
JS端调用：
const ReactEventEmit = NativeModules.ReactEventEmit
const myReactEventEmit = new NativeEventEmitter(ReactEventEmit)
this.listener = myReactEventEmit.addListener('goToCashier', (data: { result: string }) =>{
console.warn('====== cashierSuccess ======= ' + JSON.stringify(data))
this.process(data.result)
})
