我在视图控制器中有3个文本字段，一个提交按钮和一个表视图。现在我想在表格视图中将3个文本字段的数据显示为自定义单元格的3个标签，当我再次更新数据时，更新的数据应显示在下一个单元格中。但在我的代码中，更新的数据显示在单元格中。以前的数据是覆盖的。任何人都可以告诉我哪里错了？
这是我的ViewController.h
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
@property (weak, nonatomic) IBOutlet UITextField *nameTextField;
@property (weak, nonatomic) IBOutlet UITextField *addressTextField;
@property (weak, nonatomic) IBOutlet UITextField *phoneTextField;
- (IBAction)submitButton:(id)sender;
@property (weak, nonatomic) IBOutlet UITableView *detailTable;
@property(nonatomic, strong)NSMutableArray *arrPeopleDetail;
@end
这是我的ViewController.m
#import "ViewController.h"
#import "detailObject.h"
@interface ViewController ()
@end
@implementation ViewController
{
detailObject *peopleDetail;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.arrPeopleDetail = [[NSMutableArray alloc]init];
peopleDetail = [[detailObject alloc]init];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)submitButton:(id)sender {
[self.detailTable reloadData];
if ([self.nameTextField.text isEqualToString:@""] || [self.addressTextField.text isEqualToString:@""] || [self.phoneTextField.text isEqualToString:@""] ) {
UIAlertView *alrt = [[UIAlertView alloc]initWithTitle:@"Warning" message:@"Plaeas Enter Text In The Empty Field" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil ];
[alrt show];
}
else{
peopleDetail.strPeopleName = self.nameTextField.text;
peopleDetail.strPeopleAddress = self.addressTextField.text;
peopleDetail.strPeoplePhoneNumber = self.phoneTextField.text;
[self.arrPeopleDetail addObject:peopleDetail];
}
//[self.detailTable reloadData];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell1"];
UILabel *lbl1 = (UILabel*)[cell.contentView viewWithTag:1];
lbl1.text = [[self.arrPeopleDetail objectAtIndex:indexPath.row]valueForKey:@"strPeopleName"];
UILabel *lbl2 = (UILabel*)[cell.contentView viewWithTag:2];
lbl2.text = [[self.arrPeopleDetail objectAtIndex:indexPath.row]valueForKey:@"strPeopleAddress"];
UILabel *lbl3 = (UILabel*)[cell.contentView viewWithTag:3];
lbl3.text = [[self.arrPeopleDetail objectAtIndex:indexPath.row]valueForKey:@"strPeoplePhoneNumber"];
return cell;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [self.arrPeopleDetail count];
}
@end
这是我拍摄的.h NSObject类。
#import <Foundation/Foundation.h>
@interface detailObject : NSObject
@property(nonatomic,strong) NSString *strPeopleName;
@property(nonatomic,strong) NSString *strPeopleAddress;
@property(nonatomic,strong) NSString *strPeoplePhoneNumber;
@end
答案 0 :(得分：0)
添加行peopleDetail = [[detailObject alloc] init];在其他情况下，submitButton操作并将新对象添加到数组重装表视图数据
之后即
否则{
peopleDetail = [[detailObject alloc]init];
peopleDetail.strPeopleName = self.nameTextField.text;
peopleDetail.strPeopleAddress = self.addressTextField.text;
peopleDetail.strPeoplePhoneNumber = self.phoneTextField.text;
[self.arrPeopleDetail addObject:peopleDetail];
[self.detailTable reloadData];
}
你可以删除peopleDetail = [[detailObject alloc] init];来自viewDidLoad
答案 1 :(得分：0)
我意识到我错了。我在全局创建对象而不是在本地创建它。如果有人犯了这个错误，那么每当用户输入数据时数据被覆盖，因为创建的对象是一个。所以主要的错误是全局创建对象而不是在本地创建它。
因此更新的ViewController.m是..
#import "ViewController.h"
#import "detailObject.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.arrPeopleDetail = [[NSMutableArray alloc]init];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)submitButton:(id)sender {
if ([self.phoneTextField.text isEqualToString:@""] && [self.addressTextField.text isEqualToString:@""] && [self.phoneTextField.text isEqualToString:@""] ) {
UIAlertView *alrt = [[UIAlertView alloc]initWithTitle:@"Error" message:@"Please Fillup The Above Fields" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
[alrt show];
}
else if ([self.nameTextField.text isEqualToString:@""]) {
UIAlertView *alrt_name = [[UIAlertView alloc]initWithTitle:@"Error" message:@"Plaeas Enter Name" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil ];
[alrt_name show];
}
else if ([self.addressTextField.text isEqualToString:@""]) {
UIAlertView *alrt_address = [[UIAlertView alloc]initWithTitle:@"Error" message:@"Please Enter Address" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
[alrt_address show];
}
else if ([self.phoneTextField.text isEqualToString:@""]) {
UIAlertView *alrt_phoneNumber = [[UIAlertView alloc]initWithTitle:@"Error" message:@"Please Enter Phone Number" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
[alrt_phoneNumber show];
}
else
{
detailObject *peopleDetail = [[detailObject alloc] init];
peopleDetail.strPeopleName = self.nameTextField.text;
peopleDetail.strPeopleAddress = self.addressTextField.text;
peopleDetail.strPeoplePhoneNumber = self.phoneTextField.text;
[self.arrPeopleDetail addObject:peopleDetail];
self.nameTextField.text = @"";
self.addressTextField.text = @"";
self.phoneTextField.text = @"";
}
[self.detailTable reloadData];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell1"];
UILabel *lbl1 = (UILabel*)[cell.contentView viewWithTag:1];
lbl1.text = [[self.arrPeopleDetail objectAtIndex:indexPath.row]valueForKey:@"strPeopleName"];
UILabel *lbl2 = (UILabel*)[cell.contentView viewWithTag:2];
lbl2.text = [[self.arrPeopleDetail objectAtIndex:indexPath.row]valueForKey:@"strPeopleAddress"];
UILabel *lbl3 = (UILabel*)[cell.contentView viewWithTag:3];
lbl3.text = [[self.arrPeopleDetail objectAtIndex:indexPath.row]valueForKey:@"strPeoplePhoneNumber"];
return cell;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [self.arrPeopleDetail count];
}
@end