'NSInternalInconsistencyException', reason: 'Requested the number of rows for section (0) which is out of bounds.'

问题

I'm getting this error when I try to run my app on iOS 13, older versions was working fine.

'NSInternalInconsistencyException', reason: 'Requested the number of rows for section (0) which is out of bounds.'

This is what I presume that is causing the exception

override func reloadData() {
    super.reloadData()

    let rows = self.numberOfRows(inSection: 0) // what I know is that this line is causing the exception
    if (rows > 0) {
        if placeholderStackView != nil {
            self.placeholderStackView.removeFromSuperview()
        }
    } else {
        setTableStatus(type: .empty)
    }

}

when I set the variable row to a number it loads without exception, I presume that an update on UITableView SDK caused it, I've tried searching google for some insights, but no success on this.

回答1:

Check for self.numberOfSections first. If there are no sections, then there can be no rows in that section (out of bounds).

override func reloadData() {
    super.reloadData()

    guard 0 < self.numberOfSections && 0 < self.numberOfRows(inSection: 0) else {
        setTableStatus(type: .empty)
        return
    }

    if placeholderStackView != nil {
        self.placeholderStackView.removeFromSuperview()
    }
}

来源：https://stackoverflow.com/questions/61141561/nsinternalinconsistencyexception-reason-requested-the-number-of-rows-for-se