UItextfield与pickerview作为firstresponder ios

问题描述：

我有一个UITextField，当点击需要显示UIPickerView。此外，在pickerview中选择的数据将被插入到文本框中。为了达到目的，我现在使用subhajit的SHPickerField。UItextfield与pickerview作为firstresponder ios

可以显示乌尔TRID代码 –

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答

我已经创建的UITextField的一个子类，很容易实施和使用。这里是GitHub的链接：

访问https://github.com/subhajitregor/SHPickerFieldExample

请看例子来看看如何使用。自述文件现在也被更新。

无法运行项目 –

如果您使用较低版本的Xcode而不是Xcode 8，请将您的目标更改为iOS 9 –

感谢您的工作 –

答

试试这个

let myPicker = UIPickerView() 
@IBOutlet var myText: UITextField! 

override func viewDidAppear(_ animated: Bool) { 
    super.viewDidAppear(animated) 

    myText.inputView = myPicker 

} 


@IBAction func textPiker(_ sender: UITextField) { 

    sender.inputView = myPicker 
}

答

借助此代码，您还可以打开多个文本字段。

UIPickerView *monthPickerView; 

@property (strong, nonatomic)NSArray *monthArray; 

@property (retain, nonatomic) IBOutlet UITextField *monthTextField;

self.monthArray=[[NSArray alloc] initWithObjects:@"one",@"two", nil]; 

self.monthTextField.delegate=self; 

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField 
{ 
    [self showPicker:textField]; 

else if(textField==_monthTextField){ 
    if(self.monthTextField.text.length>=1){ 
     [monthPickerView selectRow:[self.monthArray indexOfObject:self.monthTextField.text] inComponent:0 animated:NO]; 
    } 
} 

return YES; 
} 


//**************show picker************** 

- (IBAction)showPicker:(id)sender { 
UITextField *textField=(UITextField *)sender; 
monthPickerView = [[UIPickerView alloc] init]; 
monthPickerView.showsSelectionIndicator = YES; 
monthPickerView.dataSource = self; 
monthPickerView.delegate = self; 
pickerToolbar = [[UIToolbar alloc] init]; 
pickerToolbar.barStyle = UIBarStyleBlackTranslucent; 
[pickerToolbar sizeToFit]; 
//to make the done button aligned to the right 
UIBarButtonItem *flexibleSpaceLeft = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; 
UIBarButtonItem* doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done" 
                   style:UIBarButtonItemStyleDone target:self 
                   action:@selector(doneClicked:)]; 
[pickerToolbar setItems:[NSArray arrayWithObjects:flexibleSpaceLeft, doneButton, nil]]; 

if(textField==_monthTextField){ 
    monthPickerView.tag=; 
    self.monthTextField.inputView = monthPickerView; 
    self.monthTextField.inputAccessoryView = pickerToolbar; 
}

}

-(void)doneClicked:(id) sender 
{ 
[self.view endEditing:YES]; 


} 
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView; 
{ 
    return 1; 
} 
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component 
{ 

if(pickerView.tag==1){ 
    self.monthTextField.text = [_monthArray objectAtIndex:row]; 
} 


} 
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component; 
{ 

if(pickerView.tag==1){ 
    return [_monthArray count]; 
} 
return 0; 
} 

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component; 
{ 

if(pickerView.tag==1){ 
    return [_monthArray objectAtIndex:row]; 
} 
return 0; 
}

UItextfield与pickerview作为firstresponder ios

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