self.tableview reloadData 导致 UITableView 崩溃
我在选择一行时遇到此崩溃：'-[__NSCFArray objectAtIndex:]: index (1)超出边界(1)'，
我将数据移出了viewWillAppear，因为我们认为它导致了崩溃。我现在已将其加载到 ViewDidLoad 上。
但是如果 [self.tableview reloadData];开启后，我遇到了这个崩溃。
有想法吗？
-(void) loadData3;{
MyAppDelegate *AppDelegate = (MyAppDelegate *)[[UIApplication sharedApplication] delegate];
self.tableDataSource3 = [AppDelegate.data3 objectForKey:@"Rows"];
NSLog(@"AppDelegate.data3 : %@",AppDelegate.data3 );
NSLog(@"self.tableDataSource3 : %@",self.tableDataSource3 );
}
- (void)viewDidLoad {
[super viewDidLoad];
[self loadData3];
if(CurrentLevel3 == 0) {
self.navigationItem.title = @"Families I Follow";
}
else
self.navigationItem.title = CurrentTitle3;
}
}
-(void)viewWillAppear:(BOOL)animated {
[super viewWillAppear: animated];
[self.tableview reloadData];
}
I'm getting this crash when selecting a row: '-[__NSCFArray objectAtIndex:]: index (1) beyond bounds (1)',
I moved the data out of the viewWillAppear because we though it was causing a crash. I now have it loading on ViewDidLoad.
However if the [self.tableview reloadData]; is on, I get this crash.
Ideas?
-(void) loadData3;{
MyAppDelegate *AppDelegate = (MyAppDelegate *)[[UIApplication sharedApplication] delegate];
self.tableDataSource3 = [AppDelegate.data3 objectForKey:@"Rows"];
NSLog(@"AppDelegate.data3 : %@",AppDelegate.data3 );
NSLog(@"self.tableDataSource3 : %@",self.tableDataSource3 );
}
- (void)viewDidLoad {
[super viewDidLoad];
[self loadData3];
if(CurrentLevel3 == 0) {
self.navigationItem.title = @"Families I Follow";
}
else
self.navigationItem.title = CurrentTitle3;
}
}
-(void)viewWillAppear:(BOOL)animated {
[super viewWillAppear: animated];
[self.tableview reloadData];
}
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很可能，您正在更改显示 UITableView 时加载 UITableView 的数组，因此当您单击行时，该行不再存在于数组中。因此，数组上出现越界错误。
More than likely, you are changing the Array that loads the UITableView while it is being displayed, so when you click on a Row the row no longer exists in the Array. Therefore, the out of bounds error on the Array.
将
reloadData移动到viewDidAppear可以解决此问题。Moving
reloadDatatoviewDidAppearsolves this issue.由于它是在选择行时发生的，因此该错误很可能出现在您的
tableView:didSelectRowAtIndexPath:或tableView:willSelectRowAtIndexPath:方法中。您发布的viewWillAppear:代码片段似乎没有本质上的错误。Since its happening while selecting a row, the error is most likely in your
tableView:didSelectRowAtIndexPath:ortableView:willSelectRowAtIndexPath:method(s). Nothing seems intrinsically wrong with theviewWillAppear:code fragment that you've posted.