手写UI的同学的福利，看过来
一切都是为了少写代码
有需要的请留言，会奉上Demo
let YV_BC = RGB(174, G: 153, B: 90)
extension UIButton{
//MARK: convenience 的初始化方法是不能被子类重写或者是从子类中以 super 的方式被调用的
/// 创建 UIButton
///
/// - parameter nt: normal title
/// - parameter ts: fontSize，默认 14
/// - parameter ntc: normal color，默认 darkGray
/// - parameter nn: normal imageNamed
///
/// - returns: UIButton
convenience init(yv_nt nt: String? = nil,
ntc: UIColor? = RGBSingle(176),
nn: String? = nil,
st: String? = nil,
stc: UIColor? = RGBSingle(115),
sn: String? = nil,
ts: CGFloat? = nil,
bts: CGFloat? = nil,
rd: CGFloat = 0,
bc: UIColor? = nil,
bdc: CGColor? = nil,
bdw: CGFloat? = 0) {
self.init()
if nn != nil {self.setImage(UIImage(named: nn!), for: .normal)}
self.setTitle(nt, for: .normal)
self.setTitleColor(ntc, for: .normal)
if sn != nil {self.setImage(UIImage(named: sn!), for: .selected)}
self.setTitle(st, for: .selected)
self.setTitleColor(stc, for: .selected)
if ts != nil {
self.titleLabel?.font = UIFont.systemFont(ofSize: ts!)
}
if bts != nil {
self.titleLabel?.font = UIFont.boldSystemFont(ofSize: bts!)
}
self.backgroundColor = bc
self.contentMode = .scaleAspectFill
self.clipsToBounds = true
self.layer.cornerRadius = rd
self.layer.masksToBounds = true
self.layer.borderColor = bdc
if bdw != nil {
self.layer.borderWidth = bdw!
}
// 自动调整大小
sizeToFit()
}
}
extension UILabel{
/// 创建 UILabel
///
/// - parameter lt: text
/// - parameter ts: fontSize，默认 14
/// - parameter ltc: color，默认 darkGray
/// - parameter alg: alignment，默认左对齐
///
/// - returns: UILabel
convenience init(yv_lt lt: String = "labeltitle",
ltc: UIColor = UIColor.darkGray,
ts: CGFloat? = nil,
bts: CGFloat? = nil,
alg: NSTextAlignment = .left, isToFit: Bool? = nil) {
self.init()
self.text = lt
self.textColor = ltc
self.textAlignment = alg
if ts != nil {
self.font = UIFont.systemFont(ofSize: ts!)
}
if bts != nil {
self.font = UIFont.boldSystemFont(ofSize: bts!)
}
if isToFit != nil {
self.numberOfLines = 0
// 自动调整大小
sizeToFit()
}
}
}
extension UIImageView{
convenience init(yv_named named: String,
rd: CGFloat = 0,
bc: UIColor? = nil,
bdc: CGColor? = nil,
bdw: CGFloat? = nil) {
self.init()
self.image = UIImage(named: named)
self.backgroundColor = bc
self.contentMode = .scaleAspectFill
self.clipsToBounds = true
self.layer.cornerRadius = rd
self.layer.masksToBounds = true
self.layer.borderColor = bdc
self.layer.borderWidth = bdw == nil ? 0 : bdw!
self.clipsToBounds = true
}
}
extension UITextField {
convenience init(yv_pl pl: String = "Placeholder",
plc: UIColor = UIColor.red,
tc: UIColor = UIColor.darkGray,
kt:UIKeyboardType = .default ,
ts: CGFloat = 14,
alg: NSTextAlignment = .left,
bc: UIColor = RGB(33, G: 176, B: 89),
rd: CGFloat = 0){
self.init()
self.attributedPlaceholder = NSAttributedString(string: pl, attributes: [
NSForegroundColorAttributeName: plc as Any,
NSFontAttributeName : UIFont.systemFont(ofSize: ts)
])
self.keyboardType = kt
self.textAlignment = alg
self.textColor = tc
self.backgroundColor = bc
self.layer.cornerRadius = rd
self.layer.masksToBounds = true
}
}
extension UITextView {
convenience init(yv_pl pl: String = "Placeholder",
plc: UIColor = UIColor.red,
tc: UIColor = UIColor.darkGray,
kt:UIKeyboardType = .default ,
ts: CGFloat = 14,
alg: NSTextAlignment = .left,
bc: UIColor = RGB(33, G: 176, B: 89),
rd: CGFloat = 0){
self.init()
self.text = pl
self.keyboardType = kt
self.textAlignment = alg
self.textColor = tc
self.backgroundColor = bc
self.layer.cornerRadius = rd
self.layer.masksToBounds = true
}
}
let HomeSubviewHeight = ScreenHeight - 64 - 49
extension UIScrollView {
convenience init(yv_bc bc: UIColor = RGB(33, G: 176, B: 89),
any: Any,
isP: Bool = false,cs: CGSize = CGSize(width: ScreenWidth * 3,height: HomeSubviewHeight)) {
self.init()
self.backgroundColor = bc
self.delegate = any as? UIScrollViewDelegate
self.isPagingEnabled = isP
self.scrollsToTop = false
self.showsHorizontalScrollIndicator = false
self.showsVerticalScrollIndicator = false
self.contentSize = cs
}
}
extension UITableView{
convenience init(yv_bc bc: UIColor = RGB(33, G: 176, B: 89),
any: Any,
rh: CGFloat = 50,tabstyle: UITableViewStyle = .plain,style: UITableViewCellSeparatorStyle = .singleLine) {
self.init(frame: CGRect.zero, style: tabstyle)
self.separatorStyle = style
self.backgroundColor = bc
// self.tableHeaderView = UIView(frame: CGRect.zero)
self.rowHeight = rh
self.delegate = any as? UITableViewDelegate
self.dataSource = any as? UITableViewDataSource
}
}
extension UICollectionView{
convenience init(yv_bc bc: UIColor = RGB(33, G: 176, B: 89),
any: Any,
isP: Bool = false,layout: UICollectionViewLayout) {
self.init(frame: CGRect.zero, collectionViewLayout: layout)
self.backgroundColor = bc
self.dataSource = any as? UICollectionViewDataSource
self.delegate = any as? UICollectionViewDelegate
self.showsVerticalScrollIndicator = false
self.showsHorizontalScrollIndicator = false
self.isPagingEnabled = isP
}
}
extension UICollectionViewFlowLayout{
convenience init(yv_si si: UIEdgeInsets = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0),
sd: UICollectionViewScrollDirection? = nil,
mls: CGFloat = 0,
mis: CGFloat = 0,
ise: CGSize = CGSize(width: 50, height: 50) ) {
self.init()
self.sectionInset = si
self.scrollDirection = sd == nil ? .horizontal : sd!
self.minimumLineSpacing = mls
self.minimumInteritemSpacing = mis
self.itemSize = ise
}
}
extension Date {
/// "yyyy-MM-dd'T'HH:mm:ss"
static var UTCDate: String {
get {
let date = Date()
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
return formatter.string(from: date)
}
}
static var UTCDateNo: String {
get {
let date = Date()
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd"
return formatter.string(from: date)
}
}
static var UTCDateZZ: String {
get {
let date = Date()
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS"
return formatter.string(from: date)
}
}
static var YearMonth: String {
get {
let date = Date()
let formatter = DateFormatter()
formatter.dateFormat = "YYYY/MM"
return formatter.string(from: date)
}
}
static var MonthDayr: String {
get {
let date = Date()
let formatter = DateFormatter()
formatter.dateFormat = "MM/dd"
return formatter.string(from: date)
}
}
static func dateFromUTCstring(_ utc: String) -> Date? {
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
let date = formatter.date(from: utc)
return date
}
}
extension UINavigationController {
//来回push防止底部工具栏出现
func pushVCHT(_ vc: UIViewController) {
vc.hidesBottomBarWhenPushed = true
pushViewController(vc, animated: true)
}
}
extension UIView {
convenience init(yv_bc: UIColor? = nil) {
self.init()
self.backgroundColor = yv_bc
}
func addSubviews(_ views: Array<UIView>) {
_ = views.map{addSubview($0)}
}
func isHiddenSubviews(_ views: Array<UIView>,ishidden: Bool) {
_ = views.map{$0.isHidden = ishidden}
}
func yv_viewToImage() -> UIImage {
UIGraphicsBeginImageContextWithOptions(self.bounds.size, false, 0.0)
self.layer.render(in: UIGraphicsGetCurrentContext()!)
let result = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return result!
}
}
extension UIImage {
//裁剪图片
func yv_cropImage(rect: CGRect) -> UIImage {
let sourceImageRef = self.cgImage
let newImageRef = sourceImageRef!.cropping(to: rect)
let newImage = UIImage(cgImage: newImageRef!)
return newImage
}
/// 异步绘制图像
func yv_asyncDrawImage(rect: CGRect,
isCorner: Bool = false,
backColor: UIColor? = UIColor.white,
finished: @escaping (_ image: UIImage)->()) {
// 异步绘制图像，可以在子线程进行，因为没有更新 UI
DispatchQueue.global().async {
// 如果指定了背景颜色，就不透明
UIGraphicsBeginImageContextWithOptions(rect.size, backColor != nil, 1)
let rect = rect
if backColor != nil{
// 设置填充颜色
backColor?.setFill()
UIRectFill(rect)
}
// 设置圆角 - 使用路径裁切，注意：写设置裁切路径，再绘制图像
if isCorner {
let path = UIBezierPath(ovalIn: rect)
// 添加裁切路径 - 后续的绘制，都会被此路径裁切掉
path.addClip()
}
// 绘制图像
self.draw(in: rect)
let result = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
// 主线程更新 UI，提示：有的时候异步也能更新 UI，但是会非常慢！
DispatchQueue.main.async {
finished(result!)
}
}
}
}
extension UIView{
func yvDrawStaticCircle() {
///绘制静态圆
let StaticCayer = CAShapeLayer()
StaticCayer.lineWidth = 2
StaticCayer.strokeColor = RGBA(58, G: 193, B: 126, A: 1).cgColor
StaticCayer.fillColor = UIColor.clear.cgColor
let Staticcenter = CGPoint(x: self.frame.size.width/2, y: self.frame.size.height/2)
let Staticradius: CGFloat = 15
let StaticstartA = CGFloat(0)
let StaticendA = CGFloat(Double.pi/2 * 4)
let Staticpath = UIBezierPath(arcCenter: Staticcenter, radius: Staticradius, startAngle: StaticstartA, endAngle: StaticendA, clockwise: true)
StaticCayer.path = Staticpath.cgPath
self.layer.addSublayer(StaticCayer)
let DynamicCayer = CAShapeLayer()
// DynamicCayer.frame = CGRect(x: 0 , y: 0, width: ProgressWH, height: ProgressWH)
DynamicCayer.lineWidth = 1.5
DynamicCayer.strokeColor = RGBA(58, G: 193, B: 126, A: 1).cgColor
DynamicCayer.fillColor = UIColor.clear.cgColor
let center = CGPoint(x: self.frame.size.width/2, y: self.frame.size.height/2)
let radius: CGFloat = 15 - 1.5
let startA = CGFloat(0)
let endA = CGFloat(Double.pi/2 * 4)
let path = UIBezierPath(arcCenter: center, radius: radius, startAngle: startA, endAngle: endA, clockwise: true)
DynamicCayer.path = path.cgPath
self.layer.addSublayer(DynamicCayer)
DynamicCayer.strokeEnd = 0
}
func yvDrawDynamicCircle(progress: Float) {
(self.layer.sublayers?.last as? CAShapeLayer)?.strokeEnd = CGFloat(progress)
}
}
public extension NSObject{
//获取类名
public class var nameOfClass: String{
return NSStringFromClass(self).components(separatedBy: ".").last!
}
public var nameOfClass: String{
return NSStringFromClass(type(of: self)).components(separatedBy: ".").last!
}
}
extension Float{
//秒-> xx:xx
func getMMSSFromSS() -> String {
let fl_minute: Float = self/60
let fl_second: Float = self.truncatingRemainder(dividingBy: 60)
let str_second = String(format: "%02d", Int(fl_second))
let format_time = "\(Int(fl_minute)):\(str_second)"
return format_time
}
}
有错请指出，望共同进步
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