展开全部
-(UIViewController *)getCurrentRootViewController {
UIViewController *result;
// Try to find the root view controller programmically
// Find the top window (that is not an alert view or other window)
UIWindow *topWindow = [[UIApplication sharedApplication] keyWindow];
if (topWindow.windowLevel != UIWindowLevelNormal)
{
NSArray *windows = [[UIApplication sharedApplication] windows];
for(topWindow in windows)
{
if (topWindow.windowLevel == UIWindowLevelNormal)
break;
}
}
UIView *rootView = [[topWindow subviews] objectAtIndex:0];
id nextResponder = [rootView nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]])
result = nextResponder;
else if ([topWindow respondsToSelector:@selector(rootViewController)] && topWindow.rootViewController != nil)
result = topWindow.rootViewController;
else
NSAssert(NO, @"ShareKit: Could not find a root view controller. You can assign one manually by calling [[SHK currentHelper] setRootViewController:YOURROOTVIEWCONTROLLER].");
return result;
}
UIViewController *result;
// Try to find the root view controller programmically
// Find the top window (that is not an alert view or other window)
UIWindow *topWindow = [[UIApplication sharedApplication] keyWindow];
if (topWindow.windowLevel != UIWindowLevelNormal)
{
NSArray *windows = [[UIApplication sharedApplication] windows];
for(topWindow in windows)
{
if (topWindow.windowLevel == UIWindowLevelNormal)
break;
}
}
UIView *rootView = [[topWindow subviews] objectAtIndex:0];
id nextResponder = [rootView nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]])
result = nextResponder;
else if ([topWindow respondsToSelector:@selector(rootViewController)] && topWindow.rootViewController != nil)
result = topWindow.rootViewController;
else
NSAssert(NO, @"ShareKit: Could not find a root view controller. You can assign one manually by calling [[SHK currentHelper] setRootViewController:YOURROOTVIEWCONTROLLER].");
return result;
}
本回答被网友采纳
网易云信
2023-12-06 广告
2023-12-06 广告
很高兴能回答您的问题。以下是一段针对“一对一消息组件”的描述,字数在200字左右:该组件支持用户之间的私密交流,让沟通更加直接和高效。通过它,您可以向特定对象发送消息,并实时查看消息状态,包括对方是否已读或未读。同时,该组件还支持富文本消息...
点击进入详情页
本回答由网易云信提供
展开全部
利用navigationController,获取栈顶元素。
展开全部
描述不够清晰啊
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询