With the release of iOS8 I have designed my table view with cells taking advantage of self sizing cells. But I need my tables to work in iOS7 as well. How do I do that? Is there a way to check whether self sizing cells is supported or not in runtime, or can I implement some table delegate methods in my controller which will not be called in iOS7?
If I try my table with self sizing cells in iOS7 I get errors on the console like this:
Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x7fc912d1d5a0 V:|-(>=11)-[UILabel:0x7fc912d13900] (Names: '|':UITableViewCellContentView:0x7fc912d13400 )>",
"<NSLayoutConstraint:0x7fc912d1d6b0 V:[UILabel:0x7fc912d13900]-(11)-| (Names: '|':UITableViewCellContentView:0x7fc912d13400 )>",
"<NSAutoresizingMaskLayoutConstraint:0x7fc912d24d80 h=--& v=--& V:[UITableViewCellContentView:0x7fc912d13400(0.5)]>"
)
Anonymous User
17-Oct-2014override func viewDidLoad() {
if NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_7_1 {
self.tableView.estimatedRowHeight = 80
self.tableView.rowHeight = UITableViewAutomaticDimension
}
}
For iOS7 you need to calculate a height for each cell. But if you are on iOS8 you can return UITableViewAutomaticDimension as the height:
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {if NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_7_1 {
return UITableViewAutomaticDimension
}
else {
return 50 // Or whatever calculated value you need for cell height
}
}