Uitextfield Only Top and Bottom Border

UITextField Only Top And Bottom Border

One approach I have found works good is using layers. Here's a snippet:

CALayer *bottomBorder = [CALayer layer];
bottomBorder.frame = CGRectMake(0.0f, self.frame.size.height - 1, self.frame.size.width, 1.0f);
bottomBorder.backgroundColor = [UIColor blackColor].CGColor;
[myTextField.layer addSublayer:bottomBorder];

Hope this helps someone.

How to only show bottom border of UITextField in Swift

Try to do by this way, with Swift 5.1:

var bottomLine = CALayer()
bottomLine.frame = CGRect(x: 0.0, y: myTextField.frame.height - 1, width: myTextField.frame.width, height: 1.0)
bottomLine.backgroundColor = UIColor.white.cgColor
myTextField.borderStyle = UITextField.BorderStyle.none
myTextField.layer.addSublayer(bottomLine)

You have to set the borderStyle property to None

If you are using the autolayout then set perfect constraint else bottomline will not appear.

Hope it helps.

UITextField having bottom border only in Objective-C

First:

Add and import QuartzCore framework.

#import <QuartzCore/QuartzCore.h>

Second:

CALayer *border = [CALayer layer];
CGFloat borderWidth = 2;
border.borderColor = [UIColor grayColor].CGColor;
border.frame = CGRectMake(0, textField.frame.size.height - borderWidth, textField.frame.size.width, textField.frame.size.height);
border.borderWidth = borderWidth;
[textField.layer addSublayer:border];
textField.layer.masksToBounds = YES;

EDIT:

If you have more TextFields, make one common method which takes UITextField and applies border to it like below:

-(void)SetTextFieldBorder :(UITextField *)textField{

    CALayer *border = [CALayer layer];
    CGFloat borderWidth = 2;
    border.borderColor = [UIColor grayColor].CGColor;
    border.frame = CGRectMake(0, textField.frame.size.height - borderWidth, textField.frame.size.width, textField.frame.size.height);
    border.borderWidth = borderWidth;
    [textField.layer addSublayer:border];
    textField.layer.masksToBounds = YES;

}

Pass your TextField as follows to set Bottom Border:

[self SetTextFieldBorder:YourTextField];

Text Field with Only top and Bottom Border using swift 2

Thanks @El Captain for the valuable comment and nice answer by @Bjorn Ro even if it was in Objective-c i think.
And my answer for the question is (i'm using swift 2 Xcode 7)

Override the function viewDidLayoutSubviews() in your swift file. And the Code for the same is

override func viewDidLayoutSubviews() {
// Creates the bottom border
        let borderBottom = CALayer()
        let borderWidth = CGFloat(2.0)
        borderBottom.borderColor = UIColor.grayColor().CGColor
        borderBottom.frame = CGRect(x: 0, y: forgotPasswordEmailText.frame.height - 1.0, width: forgotPasswordEmailText.frame.width , height: forgotPasswordEmailText.frame.height - 1.0)
        borderBottom.borderWidth = borderWidth
        forgotPasswordEmailText.layer.addSublayer(borderBottom)
        forgotPasswordEmailText.layer.masksToBounds = true

// Creates the Top border
        let borderTop = CALayer()
        borderTop.borderColor = UIColor.grayColor().CGColor
        borderTop.frame = CGRect(x: 0, y: 0, width: forgotPasswordEmailText.frame.width, height: 1)
        borderTop.borderWidth = borderWidth
        forgotPasswordEmailText.layer.addSublayer(borderTop)
        forgotPasswordEmailText.layer.masksToBounds = true

    }

forgotPasswordEmailText is the text field for entering Email

The Final output looks like this... with a gray Colour border (Screen shot of iPhone 4s Simulator)

Bottom Border in UiTextfield

If you want to deal with CALayer then Try this following life cycle method.

-(void)viewDidLayoutSubviews
{
    CALayer *bottomBorder = [CALayer layer];
    bottomBorder.frame = CGRectMake(0.0f, self.frame.size.height - 1, self.layer.frame.size.width, 1.0f);
    bottomBorder.backgroundColor = self.BorderColor.CGColor;
    [self.layer addSublayer:bottomBorder];
}

How to leave only the lower border of UITextField?

Replace this

 bottomLine.frame = CGRect(x:0.0, y:1.0, width: myTextField.frame.width,height: myTextField.frame.height - 1)

with

bottomLine.frame = CGRect(x:0.0, y:myTextField.frame.height - 1, width: myTextField.frame.width,height: 1)

UITextField border-bottom will not be displayed fully

Create an extension

import Foundation
import UIKit

extension CALayer {

    func addBorder(edge: UIRectEdge, color: UIColor, thickness: CGFloat) {

        let border = CALayer()

        switch edge {
        case UIRectEdge.top:
            border.frame = CGRect.zero
            border.frame = CGRect(x: 0, y: 0, width: self.bounds.width, height: thickness)
            break
        case UIRectEdge.bottom:
            border.frame = CGRect(x: 0, y: self.bounds.height - thickness, width: self.bounds.width, height: thickness)
            break
        case UIRectEdge.left:
            border.frame = CGRect(x: 0, y: 0, width: thickness, height: self.bounds.height)
            break
        case UIRectEdge.right:
            border.frame = CGRect(x: self.bounds.width - thickness, y: 0, width: thickness, height: self.bounds.height)
            break
        default:
            break
        }

        border.backgroundColor = color.cgColor;

        self.addSublayer(border)
    }
}

and call them from controller

someTextField.layer.addBorder(edge: UIRectEdge.bottom, color: UIColor.red, thickness: 2)

UPDATE ANSWER : Create a new function and adding width as param

func addBorder(edge: UIRectEdge, color: UIColor, thickness: CGFloat, width: CGFloat) {

        let border = CALayer()

        switch edge {
        case UIRectEdge.top:
            border.frame = CGRect(x: 0, y: 0, width: width, height: thickness)
            break
        case UIRectEdge.bottom:
            border.frame = CGRect(x: 0, y: self.bounds.height - thickness, width: width, height: thickness)
            break
        case UIRectEdge.left:
            border.frame = CGRect(x: 0, y: 0, width: thickness, height: self.bounds.height)
            break
        case UIRectEdge.right:
            border.frame = CGRect(x: width - thickness, y: 0, width: thickness, height: self.bounds.height)
            break
        default:
            break
        }

        border.backgroundColor = color.cgColor;

        self.addSublayer(border)
    }

After, you have to create a constraint for your TextField WIDTH
and call the extension by passing the constraint width, like this

@IBOutlet weak var textFieldConstraintWidth: NSLayoutConstraint!
self.textField.layer.addBorder(edge: UIRectEdge.bottom, color: UIColor.red, thickness: 2, width: textFieldConstraintWidth.constant)

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