iOS7의 UITextfield leftView / rightView 패딩

iOS7의 UITextfield leftView / rightView 패딩

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iOS7에서 UITextField의 leftView 및 rightView 뷰는 실제로 텍스트 필드 테두리에 가깝습니다.

해당 항목에 (수평) 패딩을 추가하려면 어떻게해야합니까?

프레임 수정을 시도했지만 작동하지 않았습니다.

uint padding = 10;//padding for iOS7
UIImageView * iconImageView = [[UIImageView alloc] initWithImage:iconImage];    
iconImageView.frame = CGRectMake(0 + padding, 0, 16, 16);
textField.leftView = iconImageView;

UITextBorderStyleNone으로 UITextField에 대한 패딩 설정 과 같이 텍스트 필드의 텍스트에 패딩을 추가하는 데 관심이 없습니다.

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이 작업을 직접 수행하고이 솔루션을 사용했습니다.

- (CGRect) rightViewRectForBounds:(CGRect)bounds {

    CGRect textRect = [super rightViewRectForBounds:bounds];
    textRect.origin.x -= 10;
    return textRect;
}

이렇게하면 iOS 7에서 이미지가 가장자리에 밀착되는 대신 오른쪽에서 10 씩 이미지가 이동합니다.

또한 이것은의 하위 클래스에 UITextField있었으며 다음을 통해 만들 수 있습니다.

1. UITextField기본값 대신 하위 클래스 인 새 파일 만들기NSObject

2. - (id)initWithCoder:(NSCoder*)coder이미지를 설정하기 위해 이름이 지정된 새 메소드 추가

   - (id)initWithCoder:(NSCoder*)coder {
       self = [super initWithCoder:coder];
   
       if (self) {
   
           self.clipsToBounds = YES;
           [self setRightViewMode:UITextFieldViewModeUnlessEditing];
   
           self.leftView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"textfield_edit_icon.png"]];
       }
   
       return self;
   }
   

3. 가져와야 할 수 있습니다. #import <QuartzCore/QuartzCore.h>

4. rightViewRectForBounds위 의 방법 추가

5. Interface Builder에서 하위 클래스를 만들려는 TextField를 클릭하고 클래스 속성을이 새 하위 클래스의 이름으로 변경합니다.

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다음을 활용하는 훨씬 간단한 솔루션 contentMode:

    arrow = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"down_arrow"]];
    arrow.frame = CGRectMake(0.0, 0.0, arrow.image.size.width+10.0, arrow.image.size.height);
    arrow.contentMode = UIViewContentModeCenter;

    textField.rightView = arrow;
    textField.rightViewMode = UITextFieldViewModeAlways;

Swift 2에서는

    let arrow = UIImageView(image: UIImage(named: "down_arrow"))
    arrow.frame = CGRectMake(0.0, 0.0, arrow.image.size.width+10.0, arrow.image.size.height);
    arrow.contentMode = UIViewContentMode.Center
    self.textField.rightView = arrow
    self.textField.rightViewMode = UITextFieldViewMode.Always

스위프트 3에서는

    let arrow = UIImageView(image: UIImage(named: "arrowDrop"))
    if let size = arrow.image?.size {
        arrow.frame = CGRect(x: 0.0, y: 0.0, width: size.width + 10.0, height: size.height)
    }
    arrow.contentMode = UIViewContentMode.center
    self.textField.rightView = arrow
    self.textField.rightViewMode = UITextFieldViewMode.always

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가장 쉬운 방법은 leftView / righView에 UIView를 추가하고 UIView에 ImageView를 추가하고 원하는 곳 어디에서나 UIView 내에서 ImageView의 원점을 조정하는 것입니다. 몇 줄의 코드 만 필요합니다.

UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 5, 26, 26)];
imgView.image = [UIImage imageNamed:@"img.png"];

UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 32, 32)];
[paddingView addSubview:imgView];
[txtField setLeftViewMode:UITextFieldViewModeAlways];
[txtField setLeftView:paddingView];

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이것은 Swift에서 잘 작동합니다.

let imageView = UIImageView(image: UIImage(named: "image.png"))
imageView.contentMode = UIViewContentMode.Center
imageView.frame = CGRectMake(0.0, 0.0, imageView.image!.size.width + 20.0, imageView.image!.size.height)
textField.rightViewMode = UITextFieldViewMode.Always
textField.rightView = imageView

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이것은 나를 위해 작동합니다

UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 20)];
self.passwordTF.leftView = paddingView;
self.passwordTF.leftViewMode = UITextFieldViewModeAlways;

그것이 당신을 도울 수 있기를 바랍니다.

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이 솔루션은 한 줄의 코드로 문제를 해결하기 때문에 좋아합니다.

myTextField.layer.sublayerTransform = CATransform3DMakeTranslation(10.0f, 0.0f, 0.0f);

참고 : .. 또는 2 줄에 QuartzCore 포함을 고려하는 경우 :)

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이를 수행하는 가장 좋은 방법은 UITextField의 하위 클래스와 .m 파일을 사용하여 클래스를 만드는 것입니다.

  #import "CustomTextField.h"
  #import <QuartzCore/QuartzCore.h>
  @implementation CustomTextField


- (id)initWithCoder:(NSCoder*)coder 
 {
self = [super initWithCoder:coder];

if (self) {

    //self.clipsToBounds = YES;
    //[self setRightViewMode:UITextFieldViewModeUnlessEditing];

    self.leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 0,15,46)];
    self.leftViewMode=UITextFieldViewModeAlways;
      }

return self;

}

by doing this go to your storyboard or xib and click on identity inspector and replace UITextfield with your own "CustomTextField" in class option.

Note: If you simply give padding with auto layout for textfield then your application will not run and show only blank screen.

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I found this somewhere...

UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
paddingView.backgroundColor = [UIColor clearColor];
itemDescription.leftView = paddingView;
itemDescription.leftViewMode = UITextFieldViewModeAlways;

[self addSubview:itemDescription];

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Create a custom UITextField class and use that class instead of UITextField. Override - (CGRect) textRectForBounds:(CGRect)bounds to set the rect that you need

Example

- (CGRect)textRectForBounds:(CGRect)bounds{
     CGRect textRect = [super textRectForBounds:bounds];
     textRect.origin.x += 10;
     textRect.size.width -= 10;
     return textRect;
}

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I have had this problem myself, and by far the easiest solution is to modify your image to simply add padding to each side of the image!

I just altered my png image to add 10 pixels transparent padding, and it works well, with no coding at all!

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One trick: Add a UIView containing UIImageView to UITextField as rightView. This UIView must be larger in size, now place the UIImageView to left of it. So there will be a padding of space from right.

// Add a UIImageView to UIView and now this UIView to UITextField - txtFieldDate
UIView *viewRightIntxtFieldDate = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 20, 30)]; 
// (Height of UITextField is 30px so height of viewRightIntxtFieldDate = 30px)
UIImageView *imgViewCalendar = [[UIImageView alloc] initWithFrame:CGRectMake(0, 10, 10, 10)];
[imgViewCalendar setImage:[UIImage imageNamed:@"calendar_icon.png"]];
[viewRightIntxtFieldDate addSubview:imgViewCalendar];
txtFieldDate.rightViewMode = UITextFieldViewModeAlways;
txtFieldDate.rightView = viewRightIntxtFieldDate;

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Here is one solution:

 UIView *paddingTxtfieldView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 20, 42)]; // what ever you want 
 txtfield.leftView = paddingTxtfieldView;
 txtfield.leftViewMode = UITextFieldViewModeAlways;

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Below example is for adding horizontal padding to a left view that happens to be an icon - you can use the similar approach for adding padding to any UIView that you would like to use as the textfield's left view.

Inside UITextField subclass:

static CGFloat const kLeftViewHorizontalPadding = 10.0f;

@implementation TextFieldWithLeftIcon
{
  UIImage *_image;
  UIImageView *_imageView;
}

- (instancetype)initWithFrame:(CGRect)frame image:(UIImage *)image
{
  self = [super initWithFrame:frame];
  if (self) {
    if (image) {
      _image = image;
      _imageView = [[UIImageView alloc] initWithImage:image];
      _imageView.contentMode = UIViewContentModeCenter;
      self.leftViewMode = UITextFieldViewModeAlways;
      self.leftView = _imageView;
    }
  }
  return self;
}

#pragma mark - Layout 

- (CGRect)leftViewRectForBounds:(CGRect)bounds
{
  CGFloat widthWithPadding = _image.size.width + kLeftViewHorizontalPadding * 2.0f;
  return CGRectMake(0, 0, widthWithPadding, CGRectGetHeight(bounds));
}

Although we are a subclassing UITextField here, I believe this is the cleanest approach.

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- (CGRect)rightViewRectForBounds:(CGRect)bounds
{
    return CGRectMake(bounds.size.width - 40, 0, 40, bounds.size.height);
}

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thank you guys for your answers, to my surprise none of them really fitted the right view image to my textfield while still providing the needed padding. then i thought of using the AspectFill mode and miracles happened. for future seekers, here's what i used:

UIImageView *emailRightView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 35, 35)];
emailRightView.contentMode = UIViewContentModeScaleAspectFill;
emailRightView.image = [UIImage imageNamed:@"icon_email.png"];
emailTextfield.rightViewMode = UITextFieldViewModeAlways;
emailTextfield.rightView = emailRightView;

the 35 in the frame of my imageview represents the height of my emailTextfield, feel free to adjust it to your needs.

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If you are using a UIImageView as leftView then you have to use this code :

Caution : Don't use inside viewWillAppear or viewDidAppear

-(UIView*)paddingViewWithImage:(UIImageView*)imageView andPadding:(float)padding
{
    float height = CGRectGetHeight(imageView.frame);
    float width =  CGRectGetWidth(imageView.frame) + padding;

    UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, width, height)];

    [paddingView addSubview:imageView];

    return paddingView;
}

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I created a custom method in my ViewController class, like shown bellow:

- (void) modifyTextField:(UITextField *)textField
{
    // Prepare the imageView with the required image
    uint padding = 10;//padding for iOS7
    UIImageView * iconImageView = [[UIImageView alloc] initWithImage:iconImage];    
    iconImageView.frame = CGRectMake(0 + padding, 0, 16, 16);

    // Set the imageView to the left of the given text field.
    textField.leftView = iconImageView;
    textField.leftViewMode = UITextFieldViewModeAlways;
}

Now I can call that method inside (viewDidLoad method) and send any of my TextFields to that method and add padding for both right and left, and give text and background colors by writing just one line of code, as follows:

[self modifyTextField:self.firstNameTxtFld];

This Worked perfectly on iOS 7! Hope this still works on iOS 8 and 9 too!

I know that adding too much Views might make this a bit heavier object to be loaded. But when concerned about the difficulty in other solutions, I found myself more biased to this method and more flexible with using this way. ;)

Hope this answer might be helpful or useful to figure out another solution to someone else.

Cheers!

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Easiest way is just change the Textfield as RoundRect instead of Custom and see the magic. :)

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for Swift2 , I use

...
        self.mSearchTextField.leftViewMode = UITextFieldViewMode.Always
        let searchImg = UIImageView(image: UIImage(named: "search.png"))
        let size = self.mSearchTextField.frame.height
        searchImg.frame = CGRectMake(0, 0, size,size)
        searchImg.contentMode = UIViewContentMode.ScaleAspectFit
        self.mSearchTextField.leftView = searchImg
...

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Instead of manipluating imageView or image we can override a method provided by apple for rightView.

class CustomTextField : UITextField { 

override func rightViewRect(forBounds bounds: CGRect) -> CGRect {
    let offset = 5
    let width  = 20
    let height = width
    let x = Int(bounds.width) - width - offset
    let y = offset
    let rightViewBounds = CGRect(x: x, y: y, width: width, height: height)
    return rightViewBounds
}}

and same way we can override below func for left view.

override func leftViewRect(forBounds bounds: CGRect) -> CGRect {
    /*return as per requirement*/

}

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...
textField.rightView = UIImageView(image: ...)
textField.rightView?.contentMode = .top
textField.rightView?.bounds.size.height += 10
textField.rightViewMode = .always
...

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Simple approach:

textField.rightViewMode = .always
let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 25, height: 15))
textField.contentMode = .scaleAspectFit
imageView = UIImage(named: "imageName")
textField.rightView = imageView

Note: Height should be smaller than the width to allow horizontal padding.

참고URL : https://stackoverflow.com/questions/19371018/uitextfield-leftview-rightview-padding-on-ios7