UIDatePicker自定义

Question

我已经自定义UIDatePicker到一个级别，我将它添加到UIAlertView。

，但我得到的底部有一个黑色的颜色和日期选择器的顶部，如何删除它。我希望日期选取器整洁干净。

我使用这个实现的代码：

UIDatePicker *datePicker = [[UIDatePicker alloc] init]; 
datePicker.frame=CGRectMake(20, 45.0, 240.0, 150.0); 
datePicker.minimumDate=[NSDate date]; 

//Forget about this logic. 

NSString *alertTitleString=@""; 
if(self.presentingViewController !=nil) 
{ 
    alertTitleString=@"Select Date and Time"; 
    [datePicker setDatePickerMode:UIDatePickerModeDateAndTime]; 
} 
else 
{ 
    alertTitleString=@"Select Time"; 
    [datePicker setDatePickerMode:UIDatePickerModeTime]; 

} 
[datePicker setDate:[NSDate date]]; 

UIView *view = [[datePicker subviews] objectAtIndex:0]; 
[view setBackgroundColor:[UIColor clearColor]]; // hide the first and the last subviews 
[[[view subviews] objectAtIndex:0] setHidden:YES]; 
[[[view subviews] lastObject] setHidden:YES]; 



UIAlertView *eventStartDateAlert = [[UIAlertView alloc] initWithTitle:alertTitleString message:@"\n\n\n\n\n\n\n\n" delegate:self cancelButtonTitle:NSLocalizedString(@"OK", @"Ok") otherButtonTitles:nil]; 
eventStartDateAlert.delegate = self; 
[eventStartDateAlert addSubview:datePicker]; 
[eventStartDateAlert show]; 

Answer 1

基本上你想要做的，是除去顶部和底部的坡度，对不对？

这是去工作，至少为iOS 5和6

[view.subviews[5] setHidden:YES]; 
[view.subviews[11] setHidden:YES]; 
[view.subviews[17] setHidden:YES];