我需要在我的日期选择器中添加一个"完成"按钮,如下图所示:

这是我的代码:
-(IBAction)chooseDate:(id)sender{
self.datepicker= [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 0, 320, 216)];
self.datepicker.datePickerMode = UIDatePickerModeDate;
datepicker.backgroundColor = Rgb2UIColor(52, 170, 220);
[self.btnDone
addTarget:self
action:@selector(SetDatePickerTime:)
forControlEvents:UIControlEventTouchDown];
[self.view addSubview:self.datepicker];
}
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