iOS：如何在后台线程中努力处理数据？

概述我有一个方法,如： - (BOOL)shouldDoSomeWork { BOOL result = // here I need do hard work with data in background thread and return result, so main thread should wait until the data is calculated and then ret 我有一个方法,如：

- (BOol)shouldDoSomeWork {   BOol result = // here I need do hard work with data in background thread and return result,so main thread should wait until the data is calculated and then return result;   return result;}

如何实现？

解决方法 你在找这个：

-(voID) startWork{     //Show activity indicator    [NSThread detachNewThreadSelector:@selector(doSomeWork) toTarget:self withObject:nil];}-(voID) doSomeWork{    NSautoreleasePool *pool = [NSautoreleasePool new];    //Do your work here    [pool release];    [self performSelectorOnMainThread:@selector(doneWork) withObject:nil waitUntilDone:NO];}  -(voID) doneWork{   //HIDe activity indicator  }

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