iphone - 将数组中的数据添加到选择器组件

Question

在我的应用程序中，我使用选择器控件，

我想从数组中获取数据到我的选择器视图，

数组是这样来的，

 PickerArray:(
    {
    CustEmail = test@test.com;
    CustFirstName = ABC;
    CustID = 1;
    CustLastName = Test;
    CustPhoneNo = 12345;
    }

我的选择器有一个组件，

 - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
NSString *title;

title = [[PickerArray objectAtIndex:row]valueForKey:@"CustFirstName"];
NSLog(@"title:%@",title);

return title;

}

有了这个我只得到一个值如果我想在选择器组件的一行中获取 CustFirstName 和 Email。喜欢ABC test@test.com；

请任何人建议我该怎么做？

Answer 1

您可以使用stringWithFormat:来构造复合字符串，如下所示：

title = [NSString stringWithFormat:@"%@ %@"
,   [[PickerArray objectAtIndex:row]valueForKey:@"CustFirstName"]
,   [[PickerArray objectAtIndex:row]valueForKey:@"CustEmail"]
];

Answer 2

根据要求编写字符串：

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component 
{
  NSString *title = [NSString stringWithFormat:@"%@ %@",[[PickerArray objectAtIndex:row]valueForKey:@"CustFirstName"],[[PickerArray objectAtIndex:row]valueForKey:@"CustEmail"]];
 NSLog(@"title:%@",title);

 return title;
}

Answer 3

尝试

title = [NSString stringWithFormat:@"%@ %@",[[PickerArray objectAtIndex:row]valueForKey:@"CustFirstName"],[[PickerArray objectAtIndex:row]valueForKey:@"CustEmail"]];