有没有一种简单的方法来更新进度条代码运行[重复]-Isthereaneasywaytoupdateprogressbarascoderuns[duplicate]

Possible Duplicate:
NSProgressIndicator progress with For loops?

可能重复：NSProgressIndicator进展For循环？

I have a simple question this time (hopefully). I have an NSProgressIndicatorView (progress bar) and I want to update its value and a status label as a for loop runs:

这次我有一个简单的问题（希望如此）。我有一个NSProgressIndicatorView（进度条），我想更新它的值和状态标签作为for循环运行：

for(int i=0; i<[nameArr count]; i++)
{
    NSString* str = [nameArr objectAtIndex:i];
    [text setStringValue:str];
    [status setStringValue:[NSString stringWithFormat:@"Processing names...%d of %ld",(i+1),[nameArr count]]];
    [progress setDoubleValue:i];
}

This code works, but the status label and the progress bar do not update until the entire for loop has finished. I can watch things work as it runs if I send them as an NSLog, so I assume there should be an easy way (without creating an NSOperation) to similarly update my status label and progress bar as I go.

此代码有效，但状态标签和进度条在整个for循环完成之前不会更新。如果我将它们作为NSLog发送，我可以观察它的运行情况，因此我认为应该有一种简单的方法（无需创建NSOperation）来同样更新我的状态标签和进度条。

Any ideas?

有任何想法吗？

1 个解决方案

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void) {
    for(int i=0; i