为什么 CFRunLoopRun 不起作用？

发布于 2024-12-26 03:43:36 字数 325 浏览 0 评论 0原文

[self request]; //main thread

- (void)request {
    [self performSelectorInBackground:@selector(regFun) withObject:nil];
}

- (void)regFun {
    CFRunLoopRun();
    CCLOG(@"CFRunLoopRun not work");
}

鉴于前面的代码，您知道为什么 CFRunLoopRun() 不起作用吗？我需要在后台调用 regFun 。

还有其他方法可以停止后台线程吗？

原文

[self request]; //main thread

- (void)request {
    [self performSelectorInBackground:@selector(regFun) withObject:nil];
}

- (void)regFun {
    CFRunLoopRun();
    CCLOG(@"CFRunLoopRun not work");
}

Given the previous code, do you know why CFRunLoopRun() is not working?. I need to call regFun in background.

Are there any other ways to stop background thread?

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九局 2025-01-02 03:43:36

它可以工作。

[self request]; //main thread

- (void)request {
    //[self performSelectorInBackground:@selector(regFun) withObject:nil];
    [NSTimer scheduledTimerWithTimeInterval:0 target:self selector:@selector(regFun) userInfo:nil repeats:NO];
}

- (void)regFun {
    CFRunLoopRun();
    CCLOG(@"CFRunLoopRun not work");
}

但我不确定这是否是正确的方法，我也不知道发生了什么。 :(

It can work.

[self request]; //main thread

- (void)request {
    //[self performSelectorInBackground:@selector(regFun) withObject:nil];
    [NSTimer scheduledTimerWithTimeInterval:0 target:self selector:@selector(regFun) userInfo:nil repeats:NO];
}

- (void)regFun {
    CFRunLoopRun();
    CCLOG(@"CFRunLoopRun not work");
}

But I'm not sure this is the right approach, and I don't know what happened. :(

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几味少女 2025-01-02 03:43:36

好吧，既然你没有告诉我们你真正需要做什么，让我们猜猜。如果您只想在后台运行选择器，请尝试 Grand Central Dispatch：

- (void) request {
    dispatch_async(dispatch_get_global_queue(0, 0), ^{
        [self regFun];
    });
}

- (void) regFun {
    // Running in background, with a run loop available
    // and an autorelease pool, too. After the code finishes:
    dispatch_async(dispatch_get_main_queue(), ^{
        // Will be called on the main thread.
        [self reportBackgroundTaskFinished];
    });
}

OK, since you are not telling us what you really need to do, let’s guess. If you just want to run a selector in the background, try Grand Central Dispatch:

- (void) request {
    dispatch_async(dispatch_get_global_queue(0, 0), ^{
        [self regFun];
    });
}

- (void) regFun {
    // Running in background, with a run loop available
    // and an autorelease pool, too. After the code finishes:
    dispatch_async(dispatch_get_main_queue(), ^{
        // Will be called on the main thread.
        [self reportBackgroundTaskFinished];
    });
}

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