据说这个是获得当前的控制器方法，没试过

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- (UIViewController *)getCurrentVC
{
UIViewController *result = nil;

UIWindow * window = [[UIApplication sharedApplication] keyWindow];
if (window.windowLevel != UIWindowLevelNormal)
{
NSArray *windows = [[UIApplication sharedApplication] windows];
for(UIWindow * tmpWin in windows)
{
if (tmpWin.windowLevel == UIWindowLevelNormal)
{
window = tmpWin;
break;
}
}
}

UIView *frontView = [[window subviews] objectAtIndex:0];
id nextResponder = [frontView nextResponder];

if ([nextResponder isKindOfClass:[UIViewController class]])
result = nextResponder;
else
result = window.rootViewController;

return result;
}

据说这个是获得当前的控制器方法，没试过

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原文地址：http://www.cnblogs.com/huntaiji/p/4682053.html