我在Crashlytics报告中遇到了这个奇怪的崩溃,我不知道发生了什么.我甚至不知道行号“0”的含义.有任何想法吗？
func tableView(tableView: UITableView,didSelectRowAtIndexPath indexPath: NSIndexPath) {
switch indexPath.section {
case 1:
let vc = WTShowDetailVC()
vc.show = bottomFeaturedShows[indexPath.row].show
navigationController?.pushViewController(vc,animated: true)
case 2:
let vc = WTShowDetailVC()
vc.show = lastWatchedShows[indexPath.row]
navigationController?.pushViewController(vc,animated: true)
case 3:
let vc = WTTapperProfileUserVC()
vc.tapper = popularTappers[indexPath.row]
navigationController?.pushViewController(vc,animated: true)
default:
println("Something went wrong")
}
}
解决方法
这通常发生在你打开一个可选项时,它的值是零.尝试对navigationController进行零检查.
if let navigationcontroller: UINavigationController = navigationController {
navigationcontroller.pushViewController(vc,animated: true)
}
