Question

-(IBAction)pickerChanged:(id)sender
{
UIDatePicker *picker = (UIDatePicker *)sender;
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
//NSDate *dateSelected is declared in .h file
self.dateSelected = [picker date];
if(self.textField.tag == 101)
self.textField.text = [dateFormatter stringFromDate:self.dateSelected];

nslog(@"date = %@",self.textField.text);
nslog(@"dateSelected = %@",self.dateSelected);
}

textfield.text和所选日期应该相同，但是在输出日志中....如果我得到日期= 2-1-2012我得到dateselected = 1-1-2012 ...而且日期是保存为1-1-2012.i我无法弄清楚问题。

Answer 1

这可能是因为不同的时区。添加这个，它适用于我：

 [dateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];

Answer 2

以下代码对我有用，希望它也能为您提供帮助。

-(IBAction)pickerChanged:(id)sender
{
    UIDatePicker *picker = (UIDatePicker *)sender;
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"dd/MM/yyyy"];
    //NSDate *dateSelected is declared in .h file
    if(self.textField.tag == 101){
        self.textField.text = [dateFormatter stringFromDate:[picker date]];
    }
    NSLog(@"date = %@",self.textField.text);
    NSLog(@"dateSelected = %@",[picker date]);
}

DatePicker显示上一个日期

2 个答案: