NSTimer无效后，后台线程NSRunloop运行不会退出！为什么？
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我正在创建一个NSTimer并将其添加到后台线程的运行循环中。
我的代码类似于此答案的后台线程示例：iPhone-SDK：在后台调用函数？
创建计时器并将其从gdb附加到runloop后，我I0ѭ并输出以下内容：
<CFRunLoop 0x695b090 [0x16a62c0]>{wakeup port = 0x6907, stopped = false,
current mode = kCFRunLoopDefaultMode,
common modes = <CFBasicHash 0x6936e60 [0x16a62c0]>{type = mutable set, count = 1,
entries =>
1 : <CFString 0x16abba8 [0x16a62c0]>{contents = \"kCFRunLoopDefaultMode\"}
}
,
common mode items = <CFBasicHash 0x695e160 [0x16a62c0]>{type = mutable set, count = 1,
entries =>
0 : <CFRunLoopTimer 0x69398a0 [0x16a62c0]>{valid = Yes, interval = 6, next fire date = 329774303, callout = __NSFireTimer (0x212399), context = <CFRunLoopTimer context 0x6903a10>}
}
,
modes = <CFBasicHash 0x6904120 [0x16a62c0]>{type = mutable set, count = 1,
entries =>
1 : <CFRunLoopMode 0x6946180 [0x16a62c0]>{name = kCFRunLoopDefaultMode, port set = 0x6807, timer port = 0x6b03,
sources0 = (null),
sources1 = (null),
observers = (null),
timers = <CFArray 0x695e180 [0x16a62c0]>{type = mutable-small, count = 1, values = (
0 : <CFRunLoopTimer 0x69398a0 [0x16a62c0]>{valid = Yes, interval = 6, next fire date = 329774303, callout = __NSFireTimer (0x212399), context = <CFRunLoopTimer context 0x6903a10>}
)}
},
}
}
<CFRunLoop 0x695b090 [0x16a62c0]>{wakeup port = 0x6907, stopped = false,
current mode = kCFRunLoopDefaultMode,
common modes = <CFBasicHash 0x6936e60 [0x16a62c0]>{type = mutable set, count = 1,
entries =>
1 : <CFString 0x16abba8 [0x16a62c0]>{contents = \"kCFRunLoopDefaultMode\"}
}
,
common mode items = <CFBasicHash 0x695e160 [0x16a62c0]>{type = mutable set, count = 0,
entries =>
}
,
modes = <CFBasicHash 0x6904120 [0x16a62c0]>{type = mutable set, count = 1,
entries =>
1 : <CFRunLoopMode 0x6946180 [0x16a62c0]>{name = kCFRunLoopDefaultMode, port set = 0x6807, timer port = 0x6b03,
sources0 = (null),
sources1 = (null),
observers = (null),
timers = <CFArray 0x695e180 [0x16a62c0]>{type = mutable-small, count = 0, values = ()}
},
}
}
没有找到相关结果
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3 个回复
寿柬窟年
文档： 从运行循环中手动删除所有已知的输入源和计时器并不能保证运行循环将退出。 您应该使用另一种方法，可能在循环中使用“ 5”，同时使计时器无效，并设置一个标志，指示运行循环应结束。埃庐
如果您正在编写可能在主线程上运行（并因此使用主运行循环）的代码，则应在执行此操作之前检查看看当前运行循环是否是主运行循环-否则，您将轰炸您的应用程序。// Kill the runloop now. NSRunLoop* rl = [NSRunLoop currentRunLoop]; // Get the runloop if (rl != [NSRunLoop mainRunLoop]) { // Set it running again, but only until now. // In other words, STOP!!! [rl runUntilDate: [NSDate date]]; }磨标烫徽啪