Question

我想在UITableView中使用所选单元格的文本。它将在不同视图中的switch语句中使用。我该怎么办？

这是 UITableView ：

的代码

- (void)viewDidLoad
{
[super viewDidLoad];

_list = [[NSArray alloc] initWithObjects:@"Academic Advising Center", @"Academic Vice      President", @"Administrative Services Vice President", @"Admissions", @"Advanced Standing and Transcript", @"Alcohol and Substance Abuse Programs", @"Allied Health Department", @"Alumni Network", nil];

_displayItems = [[NSMutableArray alloc] initWithArray:_list];

}


- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [_displayItems count];
}

- (UITableViewCell *)tableView:(UITableView *) atableView cellForRowAtIndexPath:  (NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}

cell.textLabel.text = [_displayItems objectAtIndex:indexPath.row];   //TRY THIS ONE!!
return cell;
}

这是将使用UITableView中单元格文本的视图代码（现在，我在switch语句中使用单元格编号，但我想使用单元格的内容而不是单元格编号）：

- (void)configureView 
{
// Update the user interface for the detail item.


switch (_itemNumber)
{
    case 0:
        [_phoneButton setTitle:@"233-123-2133" forState:UIControlStateNormal];
        [_emailButton setTitle:@"adf@dsf.sdf" forState:UIControlStateNormal];
        self.title = @"Acdemic Adv. Center";
        break;
    case 1:
        [_phoneButton setTitle:@"324-123-4231" forState:UIControlStateNormal];
        [_emailButton setTitle:@"WERERW@wefff.edu" forState:UIControlStateNormal];
        self.title = @"Acdemic VP";
        break;
    case 2:
        [_phoneButton setTitle:@"232-222-3333" forState:UIControlStateNormal];
        [_emailButton setTitle:@"eeeee@vfff.sss" forState:UIControlStateNormal];
        self.title = @"Admin. Serv. VP";
        break;
    case 3:
        [_phoneButton setTitle:@"111-222-3333" forState:UIControlStateNormal];
        [_emailButton setTitle:@"eeeed@def.ed" forState:UIControlStateNormal];
        self.title = @"Admissions";
        break;
    case 4:
        [_phoneButton setTitle:@"343-333-2222" forState:UIControlStateNormal];
        [_emailButton setTitle:@"eee@fff.www" forState:UIControlStateNormal];
        self.title = @"Adv. Stand. & Trans.";
        break;
    case 5:
        [_phoneButton setTitle:@"333-333-3333" forState:UIControlStateNormal];
        [_emailButton setTitle:@"ffff@sss.aaa" forState:UIControlStateNormal];
        self.title = @"Alc. & Subs. Abuse Prog.";
        break;
    case 6:
        [_phoneButton setTitle:@"444-332-2222" forState:UIControlStateNormal];
        [_emailButton setTitle:@"errvff@ede.def" forState:UIControlStateNormal];
        self.title = @"Allied Health Dept.";
        break;
    case 7:
        [_phoneButton setTitle:@"343-222-4444" forState:UIControlStateNormal];
        [_emailButton setTitle:@"saff@fgd.eee" forState:UIControlStateNormal];
        self.title = @"Alumni Network";
        break;

    default:
        [_phoneButton setTitle:@"" forState:UIControlStateNormal];
        [_emailButton setTitle:@"" forState:UIControlStateNormal];
        self.title = @"";
        break;
    }
}



- (void)viewDidLoad
{
[super viewDidLoad];

_itemNumber = [[NSUserDefaults standardUserDefaults]integerForKey:@"Cell"];

// Do any additional setup after loading the view, typically from a nib.
[self configureView];
}

我知道：_itemNumber = [[NSUserDefaults standardUserDefaults] integerForKey：@“Cell”]; 将使用单元格的数量，我该如何使用内容？

Answer 1

这实际上是非常糟糕的做法。我建议你将数据存储到带有多个NSDictinary的NSArray中，其中包含用户信息名称/电话/电子邮件。然后将NSArray中的每个对象映射到表视图中，因此具有特定索引的单元格将具有相同索引的数组。

Answer 2

使用具有多个NSDictionary实例的NSArray作为数据存储（不要直接从此NSArray加载表）。这就是伊万·阿列克在另一个答案中的建议。

然后，在NSMutableArray中存储与搜索匹配的NSDictionary实例的索引（NSNumbers）。这样，搜索栏不会更改您的基本数据存储，只会更改此索引数组。

一些示例代码：

- (UITableViewCell *)tableView:(UITableView *) atableView cellForRowAtIndexPath:  (NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    }

    NSInteger listIndex = [[_searchResultIndices objectAtIndex:[indexPath row]] integerValue];
    // assuming you create a dictionary where the title has the key title
    cell.textLabel.title = [[_items objectAtIndex:listIndex] objectForKey:@"title"];
    return cell;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [_searchResultIndices count];
}

使用UITableView中单元格中的文本

2 个答案: