将图像添加到 Xcode 中的 UITextField？

Add image to UITextField in Xcode?

提问by Honey

I need to implement the concept of dropdownin Xcode.

我需要dropdown在 Xcode 中实现 的概念。

For that purpose, I'm using a UIPickerview.

为此，我正在使用UIPickerview.

This pickerView loads when a textfield is tapped (on textFieldDidBeginEditing:)event.

当点击文本字段时（在 textFieldDidBeginEditing :) 事件上加载此 pickerView。

Question:

题：

Is there a way, that I can add a image to TextField?

有没有办法，我可以添加图像TextField？

The image is like an arrow mark by which user can understand that a dropdownappears when textfieldis tapped .How can I make it?

图像就像一个箭头标记，用户可以通过它来理解点击dropdown时textfield会出现a。我该如何制作？

回答by Mayur Birari

UITextField has a rightViewproperty, if you have image like this- then You can easly set ImageView object to rightView:

UITextField 有一个rightView属性，如果你有这样的图像 -那么你可以很容易地将 ImageView 对象设置为 rightView：

UITextField *myTextField = [[UITextField alloc] init];

myTextField.rightViewMode = UITextFieldViewModeAlways;
myTextField.rightView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"downArrow.png"]];

回答by King-Wizard

In Swift:

在斯威夫特：

textField.leftViewMode = UITextFieldViewMode.Always
textField.leftView = UIImageView(image: UIImage(named: "imageName"))

回答by Erhan Demirci

You can put the UIImageViewto the left of your UITextField.

你可以把UIImageView你的左边UITextField。

UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(96, 40, 130, 20)];
[textField setLeftViewMode:UITextFieldViewModeAlways];
textField.leftView= [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"searchIccon.png"]];

回答by Sourabh Sharma

Swift 3.0

斯威夫特 3.0

txtField.rightViewMode = .always
txtField.rightView = UIImageView(image: UIImage(named: "selectdrop"))

回答by kishorer747

To add proper margins / paddings between image and textfield, try this below code. Expanding on @King-Wizard's answer.

要在图像和文本字段之间添加适当的边距/填充，请尝试以下代码。扩展@King-Wizard 的回答。

Here the height of my TextField is 44 Check the attached image for reference.

这里我的 TextField 的高度是 44 检查附加的图像以供参考。

Swift Version:

迅捷版：

emailTF.leftViewMode = .Always
let emailImgContainer = UIView(frame: CGRectMake(emailTF.frame.origin.x, emailTF.frame.origin.y, 40.0, 30.0))
let emailImView = UIImageView(frame: CGRectMake(0, 0, 25.0, 25.0))
emailImView.image = UIImage(named: "image1")
emailImView.center = emailImgContainer.center
emailImgContainer.addSubview(emailImView)
emailTF.leftView = emailImgContainer

回答by Zaid Pathan

Step 1:Add this class to your project and add it to your textFiled's class in identity inspector,

第 1 步：将此类添加到您的项目中，并将其添加到身份检查器中的 textFiled 类中，

class MyCustomTextField: UITextField {

    @IBInspectable var inset: CGFloat = 0

    @IBInspectable var leftImage: String = String(){
        didSet{
            leftViewMode = UITextFieldViewMode.Always
            leftView = UIImageView(image: UIImage(named: leftImage))
        }
    }

    override func textRectForBounds(bounds: CGRect) -> CGRect {
        return CGRectInset(bounds, inset, inset)
    }

    override func editingRectForBounds(bounds: CGRect) -> CGRect {
        return textRectForBounds(bounds)
    }

    override func leftViewRectForBounds(bounds: CGRect) -> CGRect {
        return CGRectInset(CGRectMake(0, 2, 40, 40), 10, 10) //Change frame according to your needs
    }
}

Step 2:Set text insets and left image from interface builder.

第 2 步：从界面构建器中设置文本插入和左图像。

Step 3:Enjoy.

第3步：享受。

回答by Paras Joshi

hey mate you want dropdown view then see this custom dropdown view ..

嘿，伙计，您想要下拉视图，然后查看此自定义下拉视图..

1. http://code.google.com/p/dropdowndemo/downloads/list
2. http://ameyashetti.wordpress.com/2010/09/26/drop-down-demo/

1. http://code.google.com/p/dropdowndemo/downloads/list
2. http://ameyashetti.wordpress.com/2010/09/26/drop-down-demo/

and for this requirement use this code

对于此要求，请使用此代码

UITextField *txtstate =[[UITextField alloc]init]; [txtstate setFrame:CGRectMake(10, 30,170, 30)]; 
txtstate.delegate=self; 

txtstate.text=@"Fruits"; 

txtstate.borderStyle = UITextBorderStyleLine; 

txtstate.background = [UIImage imageNamed:@"dropdownbtn.png"]; 

[txtstate setAutocorrectionType:UITextAutocorrectionTypeNo]; 
[self.view addSubview:txtstate];

and set your textfield border style none..

并设置你的文本框边框样式无..

回答by Andrey Chernukha

UITextField has the following property:

UITextField 具有以下属性：

@property(nonatomic, retain) UIImage *background

example:

例子：

UITextField *myTextField = [[UITextField alloc] init];
myTextField.background = [UIImage imageNamed:@"myImage.png"];

回答by Td Prashanth

      emailTextField.leftViewMode = .alway
    let emailImgContainer = UIView(frame: CGRect(x: 0, y: 0, width: 30, height: 25))
    let emailImg = UIImageView(frame: CGRect(x: 0, y: 0, width: 25, height: 25))
    emailImg.image = UIImage(named: "SomeIMG")
    emailImgContainer.addSubview(emailImg)
    emailTextField.leftView = emailImgContainer

enter image description here

在此处输入图片说明