NSmutable 字典，具有多个键存储在 SingleArray 中

Question

我正在 NSMutableDictionary 上做一个小概念。 我有 10 名员工的四个键（姓名、年龄、电话号码、性别）。

如何将这些值分配给数组？

我分别为字典传递了 4 个不同的值，但第四个值重复出现。 这是我写的代码 - (void)viewDidLoad {

NSLog(@"in mytableviews viewdidload");



  EmpArray=[[NSMutableArray alloc]init];





//namesArray=[[NSMutableArray alloc]initWithObjects:@"jam",@"jack",@"gillchrist",@"jackson"];


  EmpDictionary=[[NSMutableDictionary alloc]init];
 [EmpDictionary setValue:@"martin" forKey:@"name"];
 [EmpDictionary setValue:@"18" forKey:@"age"];
 [EmpDictionary setValue:@"M" forKey:@"gender"];
 [EmpDictionary setValue:@"9652893070" forKey:@"phoneNumber"];
    [EmpArray addObject:EmpDictionary];
NSLog(@"emparray counr %d",[self.EmpArray count]);



[EmpDictionary setValue:@"jack" forKey:@"name"];
[EmpDictionary setValue:@"19" forKey:@"age"];
[EmpDictionary setValue:@"F" forKey:@"gender"];
[EmpDictionary setValue:@"96656893070" forKey:@"phoneNumber"];
[EmpArray addObject:EmpDictionary];

[EmpDictionary setValue:@"Louis" forKey:@"name"];
[EmpDictionary setValue:@"21" forKey:@"age"];
[EmpDictionary setValue:@"F" forKey:@"gender"];
[EmpDictionary setValue:@"9652893060" forKey:@"phoneNumber"];
[EmpArray addObject:EmpDictionary];

[EmpDictionary setValue:@"Gillchrist" forKey:@"name"];
[EmpDictionary setValue:@"23" forKey:@"age"];
[EmpDictionary setValue:@"M" forKey:@"gender"];
[EmpDictionary setValue:@"99998989" forKey:@"phoneNumber"];
 [EmpArray addObject:EmpDictionary];


 [super viewDidLoad];

}

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

NSLog(@"creating cell in cell for row at index"); 

employeeCell *empcell = (employeeCell *)[tableView dequeueReusableCellWithIdentifier:@"empcell1"];

if(empcell==nil)
{
    NSLog(@"In creating cell");
    [[NSBundle mainBundle]loadNibNamed:@"employeeCell" owner:self options:nil];
    empcell=tableCell;
}

for(int i=1;i<=3;i++)
{

    NSLog(@"after creating cell");

    //NSDictionary *temp=[self.EmpArray objectAtIndex:indexPath.row];
NSDictionary *temp = [self.EmpArray objectAtIndex:indexPath.row];
NSString *empname= [temp objectForKey:@"name"];
NSString *age= [temp objectForKey:@"age"];
//NSInteger age = [temp objectForKey:@"age"];
NSString *gender= [temp objectForKey:@"gender"];
NSString  *phonenumber = [temp objectForKey:@"phoneNumber"];

empcell.EmpName.text=empname;

empcell.EmpAge.text=age;

 empcell.EmpGender.text=gender;
empcell.EmpPhoneNumber.text=phonenumber;


empcell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;
}
return empcell;

}

Answer 1

您需要为要添加的每组条目创建新字典或 否则

[[EmpArray addObject:[EmpDictionary copy]];

，您只需添加相同的对象 4 次，因此最终结果显示 4 个单元格其中的信息相同。你的最终数组不是 4 个不同的对象，只是指向同一个对象的 4 个指针。