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What is the significance of WaitUntilDOne in performSelectorOnMainThread?

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攒了一身酷
攒了一身酷 2021-02-15 16:34

What is the significance of WaitUntilDOne in performSelectorOnMainThread?

IN what way the YES or NO set to Wait

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  • 北荒
    北荒 (楼主)
    2021-02-15 17:23

    YES means the current thread blocks / waits until the selector is performed, NO to have performSelectorOnMainThread:withObject:waitUntilDone: returns immediately

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