CODEWITHSUNDEEP
swiftuitableviewios11uitableviewautomaticdimension
Anton Tropashko
Anton Tropashko

Reputation: 5816

Resizing UITableView to fit content on ios 11

Given the junk contentSize in UITableView on ios 11 how to I get a tableview with variable height cells to autosize to that content?

Answers here: Resizing UITableView to fit content have rotted and no longer apply to ios 11

Upvotes: 2

Views: 443

Answers (1)

Dejan Skledar
Dejan Skledar

Reputation: 11435

It looks like when UITableView is using Automatic Dimensions - UITableViewAutomaticDimension, it calculates the contentSize dynamically - as you scroll.

So the solution is to catch those changes using KVO:

var contentSizeObservation: NSKeyValueObservation?

override func viewDidLoad() {
    super.viewDidLoad()

    contentSizeObservation = tableView.observe(\.contentSize, options: [.new], changeHandler: { tableView, value in
        // Do the setup here, this will be called multiple times
    })
}

Important

You need to define the contentSizeObservation as global (as a class member), or else the changeHandler block won't get called because the variable will get cleared by ARC.

Upvotes: 4

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