如何对多个UITextfields使用单个IOS UIDatePicker对象
我有以下三个与UIDatePicker关联的UITextField如何对多个UITextfields使用单个IOS UIDatePicker对象,ios,objective-c,ios7,uidatepicker,Ios,Objective C,Ios7,Uidatepicker,我有以下三个与UIDatePicker关联的UITextField self.taskDate.inputView=[self returnDatePickerView:01]; self.taskStartTime.inputView=[self returnDatePickerView:02]; self.taskEndtime.inputView=[self returnDatePickerView:03]; 这是我的日期选择器方法 - (UIView *)returnDateP
self.taskDate.inputView=[self returnDatePickerView:01];
self.taskStartTime.inputView=[self returnDatePickerView:02];
self.taskEndtime.inputView=[self returnDatePickerView:03];
这是我的日期选择器方法
- (UIView *)returnDatePickerView:(int)tag{
UIToolbar *toolBar1 = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
toolBar1.barStyle = UIBarStyleBlackTranslucent;
UIBarButtonItem *doneButton3 = [[UIBarButtonItem alloc] initWithTitle:@"Done"
style:UIBarButtonItemStyleBordered
target:self
action:@selector(taskDateDone)];
[toolBar1 setItems:[NSArray arrayWithObjects:doneButton3, nil]];
UIView *dateView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 200)];
datePicker = [[UIDatePicker alloc] initWithFrame:pickerFrame];
if(tag==01){
datePicker.datePickerMode=UIDatePickerModeDate;
}else{
datePicker.datePickerMode=UIDatePickerModeTime;
}
//Setting user selected date as the date picker default
[datePicker setDate:taskDate animated:YES];
[datePicker addTarget:self action:@selector(taskDatePicked:)forControlEvents:UIControlEventValueChanged];
[dateView addSubview:datePicker];
[dateView addSubview:toolBar1];
return dateView;
}
这是我的回电任务
- (void)taskDatePicked:(id)sender
{
NSDateFormatter *systemtimeFormatter = [[NSDateFormatter alloc] init];
NSLog(@"tag %ld",textFieldTag);
//[systemtimeFormatter setTimeZone:[NSTimeZone systemTimeZone]];
if(textFieldTag==01){
taskDate = datePicker.date;
[systemtimeFormatter setDateStyle:NSDateFormatterShortStyle];
self.taskDate.text=[[NSString alloc] initWithString:[systemtimeFormatter stringFromDate:taskDate]];
}else if(textFieldTag==02){
taskStartTime = datePicker.date;
[systemtimeFormatter setTimeStyle:NSDateFormatterShortStyle];
self.taskStartTime.text=[[NSString alloc] initWithString:[systemtimeFormatter stringFromDate:taskStartTime]];
NSLog(@"taskStartTime picked date %@",taskStartTime.description);
}else if(textFieldTag==03){
taskEndTime = datePicker.date;
[systemtimeFormatter setTimeStyle:NSDateFormatterShortStyle];
self.taskEndtime.text=[[NSString alloc] initWithString:[systemtimeFormatter stringFromDate:taskEndTime]];
}
[datePicker reloadInputViews];
}
但此方法并不是对所有UITextFied都调用。
我在这里做错了什么。请建议请将标记值设置为textFieldTag
- (UIView *)returnDatePickerView:(int)tag{
UIToolbar *toolBar1 = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
toolBar1.barStyle = UIBarStyleBlackTranslucent;
UIBarButtonItem *doneButton3 = [[UIBarButtonItem alloc] initWithTitle:@"Done"
style:UIBarButtonItemStyleBordered
target:self
action:@selector(taskDateDone)];
[toolBar1 setItems:[NSArray arrayWithObjects:doneButton3, nil]];
UIView *dateView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 200)];
datePicker = [[UIDatePicker alloc] initWithFrame:pickerFrame];
if(tag==01){
datePicker.datePickerMode=UIDatePickerModeDate;
}else{
datePicker.datePickerMode=UIDatePickerModeTime;
}
//Setting user selected date as the date picker default
[datePicker setDate:taskDate animated:YES];
[datePicker addTarget:self action:@selector(taskDatePicked:)forControlEvents:UIControlEventValueChanged];
textFieldTag = tag;
[dateView addSubview:datePicker];
[dateView addSubview:toolBar1];
return dateView;
}
请尝试以下代码,将单个日期选择器用作具有不同日期/时间格式的多个文本字段的输入视图 此处,文本字段的输入视图在文本字段委托中指定
-(BOOL)textField应该开始编辑:(UITextField*)textField
考虑UIDatePicker*datePicker
是常用的日期选择器和NSInteger textFieldTag代码>保存当前文本字段的标记(两者都添加在接口扩展中)
确保为文本字段指定了标记值,并为每个字段连接了委托。然后在viewDidLoad
方法中添加以下内容
datePicker = [[UIDatePicker alloc] init];
[datePicker addTarget:self action:@selector(taskDatePicked:) forControlEvents:UIControlEventValueChanged];
添加文本字段,如下所示:
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
switch (textField.tag)
{
case 1:
datePicker.datePickerMode = UIDatePickerModeDate;
break;
case 2:
datePicker.datePickerMode = UIDatePickerModeTime;
break;
case 3:
datePicker.datePickerMode = UIDatePickerModeTime;
break;
default:
break;
}
textField.inputView = datePicker;
textFieldTag = textField.tag;
return YES;
}
日期选择器更改触发的事件如下所示:
- (void)taskDatePicked:(id)sender
{
UITextField *textField = (UITextField *)[self.view viewWithTag:textFieldTag];
NSDateFormatter *dateformatter = [[NSDateFormatter alloc]init];
dateformatter.dateStyle = NSDateFormatterMediumStyle;
switch (textFieldTag)
{
case 1:
[dateformatter setDateFormat:@"dd-MM-YYYY"];
break;
case 2:
[dateformatter setDateFormat:@"hh:mm a"];
break;
case 3:
[dateformatter setDateFormat:@"hh:mm a"];
break;
default:
break;
}
textField.text = [dateformatter stringFromDate:[datePicker date]];
}