uinavigationcontroller

问题 I have the follow code when I call to push the ViewController to detailed chat controller ( 1-to-1 chat). However, if I click too quickly, the view controller will be pushed twice. I see the animation twice. Could anyone point me where the mistake is? The code is from a Youtube lesson (Firebase Chat) from LBTA. override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { let message = messages[indexPath.row] guard let chatPartnerId = message.chatPartnerId() else

问题 This is what I am doing. I have a tabBarControllerOne with 5 tabs. On clicking one of the tabs, I present a modal view controller, which has a navigationBar and a TabBarControllerTwo (with 3 tabs). These three tabs are the matter for concern here. In the 5th Tab of tabBarController I show modalViewController as UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:self.nextTabView]; // navController.navigationBarHidden = YES; navController

问题 I am struggling to hide the navigationBar , which would properly be hidden if the root controller wasn't a SwiftUI UIHostingController . I tried the following: Setting navigationController.isNavigationBarHidden = true after creating it, at viewDidLoad and viewWillAppear . Adding both .navigationBarHidden(true) and .navigationBarBackButtonHidden(true) for the UIHostingController 's rootView . Could it be an Apple bug? I am using Xcode 11.6. All my attempts together: class LoginController:

问题 I am struggling to hide the navigationBar , which would properly be hidden if the root controller wasn't a SwiftUI UIHostingController . I tried the following: Setting navigationController.isNavigationBarHidden = true after creating it, at viewDidLoad and viewWillAppear . Adding both .navigationBarHidden(true) and .navigationBarBackButtonHidden(true) for the UIHostingController 's rootView . Could it be an Apple bug? I am using Xcode 11.6. All my attempts together: class LoginController:

问题 can someone help me out in changing font, size and color in prompt string on my NavigationController? In the attachment, I want to modify "Consulenze" string. Thank you everybody Edit: I already tried the solution found here but no results. 回答1: You can try following ways: 1) In viewDidLoad of your ViewController add this lines: self.navigationController?.navigationBar.tintColor = UIColor.white let navigationTitleFont = UIFont(name: "Avenir", size: 20)! self.navigationController?

问题 The structure of my project is as follows. Initially when the user is registering or trying to login the initial navigation controller should work and after successfully registering / loggin in the user should be taken to first tab of tab bar controller. But the issue that i am facing is that i am getting 2 navigation bars in the tab bar view. Can someone guide me how to implement this in the correct way. Thanks in advance 回答1: Make one of the two navigation controllers from tabbar to initial

问题 The structure of my project is as follows. Initially when the user is registering or trying to login the initial navigation controller should work and after successfully registering / loggin in the user should be taken to first tab of tab bar controller. But the issue that i am facing is that i am getting 2 navigation bars in the tab bar view. Can someone guide me how to implement this in the correct way. Thanks in advance 回答1: Make one of the two navigation controllers from tabbar to initial

问题 I have a UITableView that loads content into a UIWebView like this: //MainViewController.m - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { CGRect bounds = [ [ UIScreen mainScreen ] applicationFrame ]; UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:bounds]; UIWebView *htmlView = [ [ UIWebView alloc ] initWithFrame:[scrollView bounds]]; htmlView.frame = CGRectMake(10,10,280,360); NSURLRequest *requestObj = [NSURLRequest

问题 I have a UITableView that loads content into a UIWebView like this: //MainViewController.m - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { CGRect bounds = [ [ UIScreen mainScreen ] applicationFrame ]; UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:bounds]; UIWebView *htmlView = [ [ UIWebView alloc ] initWithFrame:[scrollView bounds]]; htmlView.frame = CGRectMake(10,10,280,360); NSURLRequest *requestObj = [NSURLRequest

问题 I have a UITableView that loads content into a UIWebView like this: //MainViewController.m - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { CGRect bounds = [ [ UIScreen mainScreen ] applicationFrame ]; UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:bounds]; UIWebView *htmlView = [ [ UIWebView alloc ] initWithFrame:[scrollView bounds]]; htmlView.frame = CGRectMake(10,10,280,360); NSURLRequest *requestObj = [NSURLRequest