Question

在我的应用程序中，我正在使用选择器控件，

我想从数组中获取数据到我的选择器视图

数组就像这样，

 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一行选择器组件中获得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:构建复合字符串，如下所示：

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

Answer 2

根据要求撰写字符串：

- (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"]];

将数据从数组添加到选择器组件

3 个答案: