I'm using ENSideMenu Library for creating the menus in my navigation bar in Swift. I already created the left side menu of the navigation bar, but then when I created the right side. What happen is, when I click the right side button that contains the action for showing the right menu... the left side menu is shown instead. Here's my current implementation.
RightSideNavigationController
override func viewDidLoad() {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let menu = storyboard.instantiateViewController(withIdentifier: "RightMenuTableViewController") as! RightMenuTableViewController
sideMenu = ENSideMenu(sourceView: self.view, menuViewController: menu, menuPosition: ENSideMenuPosition.right)
sideMenu?.menuWidth = 200
view.bringSubview(toFront: navigationBar)
}
RightMenuTableViewController
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
var destView: UIViewController!
if indexPath.row == 0 {
destView = storyboard.instantiateViewController(withIdentifier: "ViewController") as! ViewController
} else {
destView = storyboard.instantiateViewController(withIdentifier: "ViewController") as! ViewController
}
sideMenuController()?.setContentViewController(destView)
}
SideNavigationController
override func viewDidLoad() {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let menu = storyboard.instantiateViewController(withIdentifier: "MenuTableViewController") as! MenuTableViewController
sideMenu = ENSideMenu(sourceView: self.view, menuViewController: menu, menuPosition: ENSideMenuPosition.left)
sideMenu?.menuWidth = 200
view.bringSubview(toFront: navigationBar)
}
MenuTableViewController
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
var destinationViewController: UIViewController!
if indexPath.section == 0{
if indexPath.row == 0 {
destinationViewController = storyboard.instantiateViewController(withIdentifier: "TopViewController") as! TopViewController
} else if indexPath.row == 1 {
destinationViewController = storyboard.instantiateViewController(withIdentifier: "MemberListViewController") as! MemberListViewController
}
}else {
if indexPath.row == 0 {
destinationViewController = storyboard.instantiateViewController(withIdentifier: "MemberRegisterViewController") as! MemberRegisterViewController
} else if indexPath.row == 3 {
destinationViewController = storyboard.instantiateViewController(withIdentifier: "UserRegistrationViewController") as! UserRegistrationViewController
}
}
sideMenuController()?.setContentViewController(destinationViewController)
}
The ENSideMenu Library currently doesn't support 2 menus which uses the library in the same page. This is according to the issues posted in ENSideMenu Library GitHub
Related
I have created a #IBDesignable View file and implemented tableview in it. Data is coming and tableView in working but only I am facing issue at the time of select cell which has to open to other ViewController. Because its a #IBDesignable view file, not a viewController.swift
How to navigate to viewController from #IBDesignable UIView tableview cell select with passing values?
Error: has no member 'navigationController' if I use self.
Code:
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let actionType = AppData?.items?[indexPath.row].actionType
switch actionType {
case 5:
print(actionType ?? 0)
let urlLink = AppData?.items?[indexPath.row].actionUrl
let titleText = AppData?.items?[indexPath.row].textValue
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
let vc = storyboard.instantiateViewController(withIdentifier: "WebViewController") as! WebViewController
vc.url = urlLink ?? ""
vc.titleText = titleText ?? ""
self.navigationController.pushViewController(vc, animated: true)
default:
print(actionType ?? 0)
}
}
You can access the parent view controller using this extension:
extension UIView {
var viewController: UIViewController? {
var responder: UIResponder? = self
while responder != nil {
if let responder = responder as? UIViewController {
return responder
}
responder = responder?.next
}
return nil
}
}
You can use it like this in your code:
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
let vc = storyboard.instantiateViewController(withIdentifier: "WebViewController") as! WebViewController
vc.url = urlLink ?? ""
vc.titleText = titleText ?? ""
self.viewcontroller?.navigationController?.pushViewController(vc, animated: true)
Note: Although you can get the parent controller of UIView, it is not
recommended as the UIView should not be aware of the controller. I
suggest using Delegates.
Your UITableView is a UIView so it's not a UIViewController and has not UINavigationController.
You should create a delegate in your UITableView that will be implemented by your UIViewController.
Something like that :
protocol MyTableViewDelegate: class {
func didSelectRow(url: String, titleText: String)
}
Add a delegate variable in your table view like :
weak var delegate: MyTableViewDelegate?
and call your delegate like this :
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let actionType = AppData?.items?[indexPath.row].actionType
switch actionType {
case 5:
print(actionType ?? 0)
let urlLink = AppData?.items?[indexPath.row].actionUrl
let titleText = AppData?.items?[indexPath.row].textValue
self.delegate.didSelectRow(url: url, titleText: titleText)
default:
print(actionType ?? 0)
}
}
In your view controller :
you should add your table view custom class into your ViewController,
then add delegate : yourTableView.delegate = self
implement delegate :
extension MyViewController: MyTableViewDelegate {
func didSelectRow(url: String, titleText: String) {
let vc = storyboard.instantiateViewController(withIdentifier: "WebViewController") as! WebViewController
vc.url = urlLink
vc.titleText = titleText
self.navigationController.pushViewController(vc, animated: true)
}
}
I have tried this but didn't work for me:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let cell = collectionView.cellForItem(at: indexPath)
cell?.layer.borderColor = UIColor.gray.cgColor
cell?.layer.borderWidth = 0.5
print("swift")
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let viewController = storyboard.instantiateViewController(withIdentifier: "Action") as! UIViewController
self.navigationController?.pushViewController(viewController, animated: true)
}
You are pushing to a UIViewController.
You might be pushing to a UIViewController inside UITabbarController. To navigate to UITabbarController you need to instantiate the UITabbarController and push to it.
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let viewController = storyboard.instantiateViewController(withIdentifier: "TabBar") as! UITabBarController
self.navigationController?.pushViewController(viewController, animated: true)
*//Get reference to your tab bar.*
let tabBar:UITabBarController = self.window?.rootViewController as! UITabBarController
let navInTab:UINavigationController = tabBar.viewControllers?[1] as! UINavigationController
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let destinationViewController = storyboard.instantiateViewControllerWithIdentifier("ControllersName") as? ControllersType
navInTab.pushViewController(destinationViewController!, animated: true)
*//To whichever index you want to navigate.*
tabBar.selectedIndex = 1
**Hope this helps.**
You should segue to the tab bar controller, not the UIViewController contained by it.
An easy way to do it is setting a segue using your storyboard and call performSegue when you want to initiate the transition.
First set the storyboard as follows:
Then you may call self.performSegue(withIdentifier: "logInSegue", sender: self)
(logInSegue is the name of my segue but obviously you should change it to your segue identifier you have set in your storyboard)
I'm trying to push to different viewcontroller programatically using this code:
let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! MenuController
self.navigationController?.pushViewController(loginVC, animated: true)
Here is my setup: I have swift file called: MenuController which contains this code I set the identifier name to: LoginViewController I set the class of both ViewControllers set to MenuController. But whenever I press the button to trigger the event it doesn't do anything.
Here is the rest of my code as requested:
import UIKit
class MenuController: UIViewController {
var thingy = 0
#IBAction func ThingyBttn(_ sender: UIButton) {
if(thingy == 1) {
print("ok")
}else{
print("good")
let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! MenuController
self.navigationController?.pushViewController(loginVC, animated: true)
}
}
#IBOutlet var myButton: UIButton!
#IBAction func Button(_ sender: UIButton) {
if let ButtonImage = myButton.image(for: .normal),
let Image = UIImage(named: "ButtonAppuyer.png"),
UIImagePNGRepresentation(ButtonImage) == UIImagePNGRepresentation(Image) {
thingy = 1
print("1")
} else {
thingy = 2
print("2")
}
}
}
I know that everything else with the code works fine because it's printing the message.
You need to insert the vc you do the push from inside a navigationController as this
self.navigationController?
is nil , or do it programmatically
Edit:
Replace this
let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! MenuController
self.navigationController?.pushViewController(loginVC, animated: true)
with
let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! MenuController
let nav = UINavigationController(rootViewController:self)
(UIApplication.shared.delegate as! AppDelegate).window!.rootViewController = nav
nav.pushViewController(loginVC, animated: true)
I think your view controllers are not in Navigation Stack thats why its not pushing to next view controller
let nextVC = self.storyboard?.instantiateViewController(withIdentifier: “nextvc”) as! nextvc
let navigation = UINavigationController(rootViewController:self)
UIAppliaction.window!.rootViewController = navigation
navigation.pushViewController(nextVC, animated: true)
I have a viewControllerwith a tableViewwhich contains all clubs, the user added. The user can reorder the tableViewCellswith the moverowatfunction. If he selects a club, he comes to a tableViewwith all members from the club. Now I want to implement the ability, to get to another viewController where he can edit the content of the cell.
I have created this, but now it doesn't work:
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if tableViewClub.isEditing == true{
self.navigationController?.pushViewController(EditClubViewController() as UIViewController, animated: true)}
if tableViewClub.isEditing == false{
self.navigationController?.pushViewController(MemberViewController() as UIViewController, animated: true)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if !tableViewClub.isEditing {
guard let destination = segue.destination as? MemberViewController,
let selectedRow = self.tableViewClub.indexPathForSelectedRow?.row else {
return
}
destination.club = clubs[selectedRow]
}}
When tableView.isEditing, then a viewController with a black background is shown. When !tableView.isEditing, this error is shown:Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value. I think it is because I have no storyboard segues. But is it possible, to have two segues from the tableViewCell? Or how should I solve this problem?
Don't use Interface Builder's segue. Instantiate the destination view controller manually so you can control which one you are transitioning to:
Interface Builder
Select the EditClubViewController and give it a Storyboard ID. Do the same to MemberViewController.
In code
In the first view controller:
override func viewDidLoad() {
super.viewDidLoad()
// Turn this on so rows can be tapped during editing mode
tableView.allowsSelectionDuringEditing = true
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let destinationVC: UIViewController
switch tableView.isEditing {
case true:
// If your storyboard isn't named "Main.storyboard" then put the actual name here
let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "editClubViewController") as! EditClubViewController
// do your setup....
destinationVC = vc
case false:
let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "memberViewController") as! MemberViewController
// do your setup...
destinationVC = vc
}
self.navigationController?.pushViewController(destinationVC, animated: true)
}
I Wanted to know if I have two cells in a tableview, and I want that if i click the first cell it seagues to specific view controller, and if I click the second cell it seagues to another view controller.
How can I do that?
You can do it this way in didSelectRowAtIndexPath method:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
switch indexPath.row {
case 0 :
println("First cell")
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewControllerWithIdentifier("FirstViewController") as! UIViewController
self.presentViewController(vc, animated: true, completion: nil)
case 1 :
println("Second Cell")
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewControllerWithIdentifier("SecondViewController") as! UIViewController
self.presentViewController(vc, animated: true, completion: nil)
default:
println("No cell selectd")
}
}
HERE is your sample project.
Call performSegue:withIdentifier: from the method didSelectRowAtIndexPath in your view controller. You can conditionally call segues with different identifiers in your code.