Question

我正在尝试使用原型单元格创建一个表因为我采取了tableview并在表格视图中插入了一个单元格在单元格中我已经采用了一个标签，我想从我的Employee类中设置值。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    RWTCell *cell = (RWTCell*)[tableView dequeueReusableCellWithIdentifier:@"employeeeCell"];
    if (!cell){
        cell = [[RWTCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"employeeeCell"];
    }
    Employee *currentEmp=[employeeArray objectAtIndex:indexPath.row];
    NSLog(@"  %@",currentEmp.empName);
    cell.lName.text=currentEmp.empName;
//    cell.textLabel.text = currentEmp.empName;

    return cell;

}

以上是我的代码当我尝试做的时候

RWTCell *cell = (RWTCell*)[tableView dequeueReusableCellWithIdentifier:@"employeeeCell"];

它总是给我null，下面的这一行永远不会起作用

cell.lName.text=currentEmp.empName;

我的Employee.m课程

#import "Employee.h"

@implementation Employee
    @synthesize empDepart,empDoj,empDob,empName,empSalary,empGender;
@end

和Employee.h

#import <Foundation/Foundation.h>

@interface Employee : NSObject
@property (nonatomic, retain) NSString *empName;
@property (nonatomic, retain) NSString *empSalary;
@property (nonatomic, retain) NSString *empDob;
@property (nonatomic, retain) NSString *empDoj;
@property (nonatomic, retain) NSString *empGender;
@property (nonatomic, retain) NSString *empDepart;

@end

修改对不起，我忘了提起我的班级我正在制作故事板

#import "RWTCell.h"

    @implementation RWTCell
    @synthesize lName;
    - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
    {
        self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
        if (self) {
            // Initialization code
        }
        return self;
    }

    - (void)setSelected:(BOOL)selected animated:(BOOL)animated
    {
        [super setSelected:selected animated:animated];

        // Configure the view for the selected state
    }

    @end



#import <UIKit/UIKit.h>

@interface RWTCell : UITableViewCell

@property (strong, nonatomic) IBOutlet UILabel *lName;
@end

Answer 1

确保已将自定义单元格与RWTCell.xib上的视图相关联

在你的.h文件

@property(nonatomic,strong) RWTCell *rwtcell;

  - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
    {

    static NSString *MyIdentifier= @"MyIdentifier";
    RWTCell *cell = (RWTCell*)[tableView   dequeueReusableCellWithIdentifier:MyIdentifier];
    if(cell==nil)
    {
        [[NSBundle mainBundle] loadNibNamed:@"RWTCell" owner:self options:nil];
        cell=self.rwtcell;
    }
    Employee *currentEmp=[employeeArray objectAtIndex:indexPath.row];
    NSLog(@"  %@",currentEmp.empName);
    cell.lName.text=currentEmp.empName;
    return cell;
    }

希望它可以帮助你..

Answer 2

看看我在我的应用程序中使用的自定义单元格。

自定义单元格的

.h文件

#import <UIKit/UIKit.h>

@interface EvalHistoryCell : UITableViewCell
@property (strong, nonatomic) IBOutlet UILabel *lblEvaluator;
@property (strong, nonatomic) IBOutlet UILabel *lblDate;
@property (strong, nonatomic) IBOutlet UILabel *lblStore;
@property (strong, nonatomic) IBOutlet UILabel *lblStatus;

@end

自定义单元格的.m文件

#import "EvalHistoryCell.h"

@implementation EvalHistoryCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        // Initialization code
    }
    return self;
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}
@end

在你要使用它的主视图控制器中：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
 static NSString *strEvalIdentifier = @"HistoryIdentifier";

 EvaluationListEntity *objEvalEntity=[arrmEvalList objectAtIndex:indexPath.row];

  EvalHistoryCell *cell = (EvalHistoryCell *)[tableView dequeueReusableCellWithIdentifier:strEvalIdentifier];

 if (cell == nil)
    {
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"EvalHistoryCell" owner:self options:nil];
        cell = [nib objectAtIndex:0];
    }
 cell.lblEvaluator.text=objEvalEntity.strEvaluatorName;
  return cell;
}

试试这个。

IOS：无法在UICell中访问我的标签

2 个答案: