DJExtension

Extensions, global functions for swift. Create a component with one line of codes.

10 times to improve your code efficiency.

Main Features!

• Create a component with one line of codes, like a label, button, textField...
• Use global functions instead of some Apple APIs.
• Make many extensions and convenience init methods for UILabel/UIButton/UIView/UIViewController/UIImage...

What's New

The latest version is 1.5.0. User can create a button with touch event in one line.

• 1.5.0 or later

UIButton(title: "login", titleFont: dj_regularFont(22), titleColor: .red, bgColor: .lightGray, superView: view, layoutClosure: { (make) in
    make.left.equalTo(50)
    make.top.equalTo(77)
    make.width.equalTo(88)
    make.height.equalTo(44)
}) {
    print("login successfully!")
}

• 1.4.1 or before

let loginButton = UIButton(title: "login", titleFont: dj_regularFont(22), titleColor: .red, bgColor: .lightGray, superView: view) { (make) in
    make.left.equalTo(50)
    make.top.equalTo(77)
    make.width.equalTo(88)
    make.height.equalTo(44)
}

loginButton.dj_addTarget(self, action: #selector(clickLogin))

@objc private func clickLogin() {
        
    print("Login Successfully!")
}

How To Install?

Manual (Recommended)

Just drag the DJExtension folder to your project.

This is what all you should do, then you can use the extension functions. All the functions or constants are start with dj.

Cocoapods (Not Recommended)

pod 'DJExtension'

You should also import this framework before you use it, like this import DJExtension.

NOTE:

The latest version in the pod depository is 1.4.1. So you'd better just drag the whole package to your project. Then you can use the latest functions.

The reason to use DJExtension

With DJExtension, you won't need to write duplicate and redundant codes in your projects. Here are some examples.

Example 01 - create labels

• before

let label = UILabel()
label.text          = "Label"
label.font          = UIFont.systemFont(ofSize: 11)
label.textColor     = UIColor(red: 123.0/255, green: 123.0/255, blue: 123.0/255, alpha: 1)
label.textAlignment = .left
label.numberOfLines = 1
    
view.addSubview(label)
    
label.snp.makeConstraints { (make) in
    make.center.equalTo(view.snp.center)
    make.width.height.equalTo(100)
}

• now

UILabel(text: "Label", font: dj_systemfont(11), color: dj_rgbGrayColor(123), alignment: .left, lineCount: 1, superView: view) { (make) in
    make.center.equalTo(view.snp.center)
    make.width.height.equalTo(100)
}

The parameter alignment and lineCount have default values, so you can also write like this.

UILabel(text: "Label", font: dj_systemfont(11), color: dj_rgbGrayColor(123), superView: view) { (make) in
    make.center.equalTo(view.snp.center)
    make.width.height.equalTo(100)
}

Example 02 - create buttons

• before

let button = UIButton()
button.setTitle("On", for: .normal)
button.setTitle("Off", for: .selected)
button.titleLabel?.font = UIFont(name: "PingFangSC-Regular", size: 11)
button.setTitleColor(UIColor.green, for: .normal)
button.setTitleColor(UIColor.red, for: .selected)
button.backgroundColor = UIColor.white
    
button.addTarget(self, action: #selector(clickSwitch(button:)), for: .touchUpInside)
        
view.addSubview(button)
        
button.snp.makeConstraints { (make) in
    make.center.equalTo(view.snp.center)
    make.width.height.equalTo(100)
}

• now

UIButton(title: "login", titleFont: dj_regularFont(22), titleColor: .red, bgColor: .lightGray, superView: view, layoutClosure: { (make) in
    make.left.equalTo(50)
    make.top.equalTo(77)
    make.width.equalTo(88)
    make.height.equalTo(44)
}) {
    print("login successfully!")
}

Example 03 - create text fileds

• before

let textField = UITextField()
textField.placeholder        = "Please input your name"
textField.textColor          = UIColor.blue
textField.font               = UIFont.systemFont(ofSize: 11)
textField.textAlignment      = .left
textField.keyboardType       = .default
textField.clearButtonMode    = .always
        
view.addSubview(textField)
        
textField.snp.makeConstraints { (make) in
    make.center.equalTo(view.snp.center)
    make.width.equalTo(200)
    make.height.equalTo(50)
}

• now

UITextField(placeholder: "Please input your name", placeholderColor: djLightGray, placeholderFont: dj_systemfont(11), textColor: djBlue, superView: view) { (make) in
    make.center.equalTo(view.snp.center)
    make.width.equalTo(200)
    make.height.equalTo(50)
}

Note

You can set the placeholder color and placeholder font for your text filed with DJExtension.

Example 04 - push a new view controller

• before

navigationController?.pushViewController(TestViewController(), animated: true)

• now

dj_push(TestViewController())

Example 05 - show an action sheet

• before

let alertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
        
let action1 = UIAlertAction(title: "Take a photo", style: .default) { (action) in
    print("Take a photo")
}
let action2 = UIAlertAction(title: "Open photo library", style: .default) { (action) in
    print("Open photo library")
}
let action3 = UIAlertAction(title: "Cancel", style: .cancel)
        
alertController.addAction(action1)
alertController.addAction(action2)
alertController.addAction(action3)
        
present(alertController, animated: true, completion: nil)

• now

dj_showActionSheet(firstTitle: "Take a photo", firstAction: { (_) in
    print("Take a photo")
}, secondTitle: "Open photo library") { (_) in
    print("Open photo library")
}

Note：

You can also set color for the action titles with DJExtension.

More functions you may use

Functions	Comment
dj_hexColor("00ff00")	get a color with a hex value.
dj_pingSemiboldFont(15)	get a font from the font family "PingFangSC-Semibold".
dj_isCameraAllowed()	the camera authorization is allowed or not.
dj_navigationBarHeight()	get the navigation bar height(adapted iPhone X or later).
dj_isEmpty(obj)	an object is empty or not.
dj_isIPhoneX()	the phone is iPhone X,Xs,Xs Max or not.
dj_toJson(obj)	convert an object to json string.
dj_callPhone("13288889990")	call a number
dj_saveFile(url, fileName)	save a file to sandbox.
dj_deleteFile(fileName)	delete the file from sandox.
dj_postNotification("LoginSuccessNotification")	post a notification.
more...

Note:

You can find more global functions in file DJGlobalFunctions.swift.

License

MIT

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