CODEWITHSUNDEEP
iosswiftuitableviewsegue
Leo Guo
Leo Guo

Reputation: 195

Swift: How to perform Segue for different UITableViewCell to different ViewController?

I have a HomePageTableViewController, which contains three customized TableViewCell, each TableViewCell contains a UICollectionView. I want to perform segue when user tapped on each TableViewCell and go to different ViewController to show the detail of the CollectionView. I used this code:

import UIKit
class HomePageTableViewController: UITableViewController, PostDelegate {

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return 3
}

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 1
}

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {


    if indexPath.section == 0 {

        let cell = tableView.dequeueReusableCellWithIdentifier("TableViewCell1") as! HomePageTableViewCell1

        cell.getCategory()
//            cell.scrollToNextCell()
//            cell.startTimer()
            cell.postDelegate = self
            tableView.rowHeight = 260
            return cell
    }

     else if indexPath.section == 1 {

        let cell = tableView.dequeueReusableCellWithIdentifier("TableViewCell2") as! HomePageTableViewCell2

        cell.getCategory()
        tableView.rowHeight = 140


        return cell
    }
     else {

        let cell = tableView.dequeueReusableCellWithIdentifier("TableViewCell3") as! HomePageTableViewCell3

        cell.getCategory()
        tableView.rowHeight = 470
        return cell
    }

}


func selectedPost(post: Posts) {
        //You will get your post object here, do what you want now

    self.performSegueWithIdentifier("goToDetail", sender: post)

}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {


    let post = sender as! Posts

    let postDetailPage = segue.destinationViewController as? DetailTableViewController
    postDetailPage!.passPost = post


}

this code does the job whatever which TableViewCell I tapped, it goes to the same segue with identifier "goToDetail". for example, for the HomeTableTableViewCell2, I want to perform segue with identifier "goToDetail2" and so on. How can I achieve that?

Upvotes: 1

Views: 3915

Answers (4)

Nirav D
Nirav D

Reputation: 72410

From looking your code looks like you have created one protocol and created the instance inside all 3 CustomTableView cell. After that you are calling that delegate method on selection of your collectionView.

To solved your problem just create one more parameter of type Int with your protocol method and pass the CustomTableView index with it.

So now your protocol PostDelegate will be looks like this.

protocol PostDelegate {
    func selectedPost(post: Posts, index: Int) 
    //Others method if you have
}

Now call these method from your different cell like this way

In HomePageTableViewCell1

self.postDelegate.selectedPost(post: post, index: 0)

In HomePageTableViewCell2

self.postDelegate.selectedPost(post: post, index: 1)

In HomePageTableViewCell3

self.postDelegate.selectedPost(post: post, index: 2)

Now change the implementation of selectedPost method inside HomePageTableViewController like this

func selectedPost(post: Posts, index: Int) {

    if (index == 0) {
        self.performSegueWithIdentifier("goToDetail", sender: post)
    }
    else if (index == 1) {
        //Perform segue with Second ViewController
    }
    else {
        //Perform segue with Third ViewController
    } 
}

Edit: To know which segue you have perform inside prepareForSegue you can use segue.identifier for that.

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if (segue.identifier == "goToDetail") { 
        let post = sender as! Posts
        let postDetailPage = segue.destinationViewController as? DetailTableViewController
        postDetailPage!.passPost = post
    }
    else if (segue.identifier == "secondViewSegue") { 
        let post = sender as! Posts
        let postDetailPage = segue.destinationViewController as? SecondViewController
        postDetailPage!.passPost = post
    }
    else { 
        let post = sender as! Posts
        let postDetailPage = segue.destinationViewController as? ThirdViewController
        postDetailPage!.passPost = post
    }
}

Upvotes: 1

Volodymyr
Volodymyr

Reputation: 1205

You need to override method didSelectCell:atIndexPath. There you should check which cell was pressed(first second etc...). After that you need to have three segues in you controller (each segue should be from one controller to other controller, not from table view to controller). When you determine your next controller you can call method perfromSegueWithIdentifier that will show needed controller. 

func tableView(tableView: UITableView, didSelectCell cell: UITableViewCell onIndexPath indexPath: NSIndexPath) {
    if let identifier: String? = [0 : "Identifier1", 1 : "identifier2", 2 : "identifier3"][indexpath.row] {
        self.perforSegueWithIdentifier[identifier]
    }
}

This code was writen fast without checking it's semantic correctness, so it may have some issues inside. But it should help you to understand what I'm talking about. As well I used Dictionary intead of switch or if else because as for me it look better, you can use anything you want to define which cell was pressed. Hope it helps...

Upvotes: 0

Rhuari Glen
Rhuari Glen

Reputation: 507

If you use the delegate method tableView(_:didSelectRowAt:) you will receive an indexPath. Once you have this, use it to get the cell you have tapped on by calling self.tableView.cellForRowAtIndexPath(indexPath). After that you can get the reuse identifier (cell.reuseIdentifer) and then perform an if/else to perform the correct segue.

EXAMPLE:

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    let cell = tableView.cellForRowAtIndexPath(indexPath)
    if (cell.reuseIdentifer == "TableViewCell1")
    { //Do segue one
        self.performSegueWithIdentifier("goToDetail", sender: post)
    }
    else if(cell.reuseIdentifer == "TableViewCell2")
    { //Do segue 2
        self.performSegueWithIdentifier("goToDetail2", sender: post)
    }
}

Upvotes: 0

Avinash Mishra
Avinash Mishra

Reputation: 797

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        if indexPath.section == 0 {
            let myWebView = self.storyboard!.instantiateViewControllerWithIdentifier(" Your ViewController") as! Your ViewController
            self.presentViewController(myWebView, animated: true, completion: nil)
        }
        if indexPath.section == 1 {
            let myWebView = self.storyboard!.instantiateViewControllerWithIdentifier(" Your ViewController") as! Your ViewController
            self.presentViewController(myWebView, animated: true, completion: nil)
        }
         if indexPath.section == 2 {
            let myWebView = self.storyboard!.instantiateViewControllerWithIdentifier("Your ViewController") as! Your ViewController
            self.presentViewController(myWebView, animated: true, completion: nil)
        }
     }

Hope It Help. Thanks.

Upvotes: 2

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