在线程中更新界面

在线程中调用 -(void)performSelectorOnMainThread:(SEL)aSelector withObject:(id)arg waitUntilDone:(BOOL)wait, 然后再在这个函数里面刷新界面的control。

在主线程里加入一个loading画面…

{
   [window addSubview:view_loading];
   [NSThread detachNewThreadSelector:@selector(init_backup:) toTarget:self withObject:nil];
}

- (void)init_backup:(id)sender
{
   NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

   //    ...
   int i = status;
   [self performSelectorOnMainThread:@selector(show_loading:) withObject:[NSNumber numberWithInt:i] waitUntilDone:NO];

   [view_loading removeFromSuperview];
   [window addSubview:tabcontroller_main.view];
   [pool release];
}

NSTimer检测不到按键的解决办法

在Timer的执行函数最后加上这段代码就可以了。

[[NSRunLoop currentRunLoop] runUntilDate: [NSDate distantPast]];