1.初始化并设置NSPort的代理 dispatch_async(dispatch_get_global_queue(0, 0), ^{
@interface** ViewController ()<NSPortDelegate>
@property (nonatomic, copy) NSArray *arr;
@property (nonatomic, strong) NSPort *notificationPort;
@property (nonatomic, strong) NSThread *thread;
@end
@implementation** ViewController
- (void*)viewDidLoad {
[super viewDidLoad];
self.notificationPort = [[NSMachPort alloc] init];
[self.notificationPort setDelegate:self];
__weak typeof(self) ws = self;
//如果需要回调的线程在主线程, 则需要将notificationPort 添加到主线程的runloop里面
dispatch_async(dispatch_get_global_queue(0, 0), ^{
NSLog(@"设置代理:%@", [NSThread currentThread]);
[[NSRunLoop currentRunLoop] addPort:ws.notificationPort forMode:NSRunLoopCommonModes];
[[NSRunLoop currentRunLoop] run];
});
}
//代理方法
- (void)handlePortMessage:(NSPortMessage *)message {
NSLog(@"接收:%@", [NSThread currentThread]);
}
//开启子线程, 发送port数据
-(void)btnClick {
dispatch_async(dispatch_get_global_queue(0, 0), ^{
NSLog(@"发送:%@", [NSThread currentThread]);
[self.notificationPort sendBeforeDate:[NSDate date] components:nil from:nil reserved:0];
});
__weak typeof(self) ws = self;
self.thread = [[NSThread alloc] initWithBlock:^{
NSLog(@"发送:%@", [NSThread currentThread]);
[ws.notificationPort sendBeforeDate:[NSDate date] components:nil from:nil reserved:0];
}];
[self.thread start];
}
执行了btnClick方法后,具体的打印信息如下: 可以传递数据, 通过message获取, 可以自行尝试 2021-08-26 20:08:25.819417+0800 11111111111[31057:1025281] 设置代理:<NSThread: 0x7f9553a78fa0>{number = 5, name = (null)}
2021-08-26 20:08:28.025739+0800 11111111111[31057:1025278] 发送:<NSThread: 0x7f9553874c50>{number = 6, name = (null)}
2021-08-26 20:08:28.026308+0800 11111111111[31057:1025281] 接收:<NSThread: 0x7f9553a78fa0>{number = 5, name = (null)}
2021-08-26 20:08:28.025958+0800 11111111111[31057:1025308] 发送:<NSThread: 0x7f9556113970>{number = 8, name = (null)}
2021-08-26 20:08:28.026854+0800 11111111111[31057:1025281] 接收:<NSThread: 0x7f9553a78fa0>{number = 5, name = (null)}
