/**
* 获取当前呈现的ViewController
*/
+ (UIViewController *)getCurrentViewController {
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] firstObject];
UIResponder *nextResponder = [frontView nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]])
result = (UIViewController *)nextResponder;
else
result = window.rootViewController;
if ([result isKindOfClass:[UITabBarController class]]) {
UITabBarController *tab = (UITabBarController *)result;
if ([tab.selectedViewController isKindOfClass:[UINavigationController class]]) {
UINavigationController *nav = (UINavigationController *)tab.selectedViewController;
return [nav.viewControllers lastObject];
} else {
return tab.selectedViewController;
}
} else if ([result isKindOfClass:[UINavigationController class]]) {
UINavigationController *nav = (UINavigationController *)result;
return [nav.viewControllers lastObject];
} else {
return result;
}
}
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