我正在制作一个待办事项列表应用程序,但是当我尝试从列表中删除某些内容时,xcode会给出一个错误,上面写着“致命错误：数组索引超出范围”.有人能告诉我,我的阵列出错了导致这种情况发生吗？
import UIKit
class SecondViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view,typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
return eventList.count
}
func tableView(tableView: UITableView,cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = UITableViewCell(style: UITableViewCellStyle.Default,reuseIdentifier: "cell")
cell.textLabel?.text = eventList[indexPath.row]
return cell
}
override func viewWillAppear(animated: Bool) {
if var storedEventList : AnyObject = NSUserDefaults.standardUserDefaults().objectForKey("EventList") {
eventList = []
for var i = 0; i < storedEventList.count; ++i {
eventList.append(storedEventList[i] as NSString)
}
}
}
func tableView(tableView: UITableView,commitEditingStyle editingStyle: UITableViewCellEditingStyle,forRowAtIndexPath indexPath: NSIndexPath) {
if(editingStyle == UITableViewCellEditingStyle.Delete) {
eventList.removeAtIndex(indexPath.row)
NSUserDefaults.standardUserDefaults().setObject(eventList,forKey: "EventList")
NSUserDefaults.standardUserDefaults().synchronize()
}
}
}
断点表示正在eventList.removeAtIndex(indexPath.row)中创建EXC_BAD_INSTRUCTION.
