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) }
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