Ios: How to Create Expandable Tableview in Swift Without Using Third Party Libraries or Pods

Slow loading of images in UITableViewController extracted from URL string

Try this

    var image: UIImage
     dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), {() -> Void in
            // Background thread stuff.
            let url = NSURL(string: blogPost.postImageUrl)
            let data = NSData(contentsOfURL: url!)
            image = UIImage(data:data)

            dispatch_async(dispatch_get_main_queue(), {() -> Void in
                // Main thread stuff.
                cell.imageView.image  = image
            })
        })

How to add accessibility label for VoiceOver at Swipe Action Configuration for Row?

Using Accessibility Custom Action from UIAccessibility by Apple

You just need to set Accessibility Custom Action:

cell.accessibilityCustomActions = [UIAccessibilityCustomAction(name: "Delete", target: self, selector: #selector(theCustomAction))]

@objc private func theCustomAction() -> Bool {
    //Do anything you want here
    return true
}

Update:

So I did recreate the project but this time I was using Storyboards (I wasn't the last time) and I imported from Cocoapods the SwipeCellKit Library and I followed their documentation and VoiceOver was working perfectly fine with deleting a cell from them indexPath.row with no problem.

Expand/collapse section in UITableView in iOS

You have to make your own custom header row and put that as the first row of each section. Subclassing the UITableView or the headers that are already there will be a pain. Based on the way they work now, I am not sure you can easily get actions out of them. You could set up a cell to LOOK like a header, and setup the tableView:didSelectRowAtIndexPath to manually expand or collapse the section it is in.

I'd store an array of booleans corresponding the the "expended" value of each of your sections. Then you could have the tableView:didSelectRowAtIndexPath on each of your custom header rows toggle this value and then reload that specific section.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.row == 0) {
        ///it's the first row of any section so it would be your custom section header

        ///put in your code to toggle your boolean value here
        mybooleans[indexPath.section] = !mybooleans[indexPath.section];

        ///reload this section
        [self.tableView reloadSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationFade];
    }
}

Then set numberOfRowsInSection to check the mybooleans value and return 1 if the section isn't expanded, or 1+ the number of items in the section if it is expanded.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    if (mybooleans[section]) {
        ///we want the number of people plus the header cell
        return [self numberOfPeopleInGroup:section] + 1;
    } else {
        ///we just want the header cell
        return 1;
    }
}

Also, you will need to update cellForRowAtIndexPath to return a custom header cell for the first row in any section.

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