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# 8.PerformSelector:afterDelay:这个方法在子线程中是否起作用？ #8

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Jerryshen170918 opened this issue Dec 20, 2019 · 0 comments

Jerryshen170918 commented Dec 20, 2019 •

edited

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[NSRunLoop.currentRunLoop run];开启runloop后可以用了

- (void)viewDidLoad {
    [super viewDidLoad];
    queue = dispatch_queue_create("asds", DISPATCH_QUEUE_CONCURRENT);
    dispatch_async(queue, ^{
        [self performSelector:@selector(testSel:) withObject:@"asdfd" afterDelay:3];
        [NSRunLoop.currentRunLoop run];
    });
}
- (void)testSel:(id)sender{
    NSLog(@"%s=%@",__FUNCTION__,sender);
}

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