不调用CellForRowAtIndexPath

编程入门行业动态更新时间:2024-10-23 23:29:40

本文介绍了不调用CellForRowAtIndexPath的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我正在编写一个app hat有很多视图，我使用了滑动视图库（ ECSlidingViews ）。问题是当我用一个对象填充数组并用 tableView：cellForRowIndexPath：方法中的对象填充表时，它确实在表中显示数据，但是当我去到其他视图并返回数据消失，因为 tableView：cellForRowIndexPath：未被调用。下面是代码：

I'm writing an app hat has many views and I used sliding views library (ECSlidingViews). The problem is when I fill an array with objects and fill the table with the objects in tableView:cellForRowIndexPath: method, it does present the data in the table, but when I go to other view and come back the data disappears because tableView:cellForRowIndexPath: is not called. Here is the code:

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSLog(@"begin of cellForRowAtIndexPath"); SchedualeCell *cell = (SchedualeCell *)[tableView dequeueReusableCellWithIdentifier:@"Cell"]; Course *temp = [array objectAtIndex:indexPath.row]; cell.nameLb.text = temp.name; cell.hourLb.text = [NSString stringWithFormat:@"%d",temp.hour]; cell.startTimeLb.text = temp.startTime; cell.endTimeLb.text = temp.endTime; NSLog(@"End of cellForRowAtIndexPath"); return cell; }

tableView：numberOfRowsInSection：和 numberOfSectionsInTableView：。

PS： view是 UIViewController 里面有表视图，我在发布问题之前搜索了所有StackOverflow。

P.S.: The view is UIViewController that has table view inside of it, and I searched all StackOverflow before posting my problem.

编辑：这是我设置委托和数据源的地方

EDIT : this is where I set the delegate and datasource

- (void)viewDidLoad { [super viewDidLoad]; NSLog(@"Did Appear"); // Do any additional setup after loading the view. self.view.layer.shadowOpacity = 0.75f; self.view.layer.shadowRadius = 10.0f; self.view.layer.shadowColor= [UIColor blackColor].CGColor; if (![self.slidingViewController.underLeftViewController isKindOfClass:[MenuViewController class]]) { self.slidingViewController.underLeftViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"Menu"]; } [self.view addGestureRecognizer:self.slidingViewController.panGesture]; if (array == nil) { array = [[NSMutableArray alloc]init]; } table.delegate = self; table.dataSource = self; [table reloadData]; }

我确实包含了标题中的委托和数据源

and I did included The delegate and datasource in the header

@interface MainViewController : UIViewController<UITableViewDataSource , UITableViewDelegate,addDelegate>

推荐答案

首先，它不是 numberOfRowsAtSection 和 numberOfTableView 。它是 numberOfSectionsInTableView 和 numberOfRowsInSection 。

First of all , it's not numberOfRowsAtSection and numberOfTableView. It's numberOfSectionsInTableView and numberOfRowsInSection.

物联网你可以这样做：

1） NSLog 你的 numberOfRowsInSection 。请注意，如果它为0，则永远不会调用 cellForRowAtIndexPath 。

1) NSLog your numberOfRowsInSection. Note that , If it's "0" then your cellForRowAtIndexPath is never going to be called.

2 ）如果您在某些 UIView 中使用 UITableView ，那么您应该添加：

2) If you are using your UITableView inside some UIView then you should add :

[self.view addSubview:table];