我正在编写一个 TableViewController,其中包含一个名为“信息”的部分,用户在其中输入名称、日期和描述。我的问题是,在我完成日期文本字段上的 NSDate 选择器的所有设置后,当我单击描述的文本字段而不是键盘时,我会看到日期选择器,并将日期存储在日期的文本字段中。
.h 文件
@interface ViewControllerInfo : UITableViewController <UITableViewDelegate, UITextFieldDelegate>{
NSDate *date;
UIActionSheet *dateSheet;
}
@property (weak, nonatomic) IBOutlet UITextField *scadenza;
@property (weak, nonatomic) IBOutlet UITextField *dateTextField;
@property (nonatomic, retain)NSDate *date;
-(void)setDatario;
-(void)dismissDateSet;
-(void)cancelDate;
.m 文件(仅指向所需的函数):
-(void)setDatario;{
dateSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil];
[dateSheet setActionSheetStyle:UIActionSheetStyleBlackTranslucent];
CGRect pickerFrame = CGRectMake(0, 44, 0, 0);
UIDatePicker *datePicker = [[UIDatePicker alloc]initWithFrame:pickerFrame];
[datePicker setDatePickerMode:UIDatePickerModeDate];
[dateSheet addSubview:datePicker];
UIToolbar *controlToolbar = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, dateSheet.bounds.size.width, 44)];
[controlToolbar setBarStyle:UIBarStyleBlack];
[controlToolbar sizeToFit];
UIBarButtonItem *spacer = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem *setButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissDateSet)];
UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancelDate)];
[controlToolbar setItems:[NSArray arrayWithObjects:spacer, setButton, cancelBtn, nil] animated:NO];
[dateSheet addSubview:controlToolbar];
[dateSheet showInView:self.view];
[dateSheet setBounds:CGRectMake(0, 0, 320, 485)];
}
-(void)cancelDate{
[dateSheet dismissWithClickedButtonIndex:0 animated:YES];
}
-(void)dismissDateSet{
NSArray *listofViews = [dateSheet subviews];
for (UIView *subview in listofViews){
if ([subview isKindOfClass:[UIDatePicker class]]){
self.date = [(UIDatePicker*)subview date];
}
[dateSheet dismissWithClickedButtonIndex:0 animated:YES];
}
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"dd/MM/yyyy"];
[dateTextField setText:[dateFormatter stringFromDate:self.date]];
}
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
[self setDatario];
return NO;
}
我不明白为什么描述的文本字段也很有趣。 问题是:为什么描述的文本字段与日期选择器匹配?
最佳答案
像这样替换你的 textFieldShouldBeginEditing 方法
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
if (textField == scadenza) {
return YES;
}
else if(textField == scadenza){
[self setDatario];
return NO;
}
return YES;
}
关于ios - UITextField 上的 UIDatePicker 问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22248809/