仿 36kr, 新浪新闻新版下划线选中动画效果, 选中字体颜色渐变, Swift3.0

可改变高度的“UIProgressView”(作者:xin_dong )
UIProgressView是一个并不很常用的UI控件,其属性和方法也很少、简单明了。但是用过的朋友都知道,设置frame时高度并不会发生变化。其实高度可以这样调整:
progressView.transform = CGAffineTransformMakeScale(1.0f, 5.0f);
当然,即使这样可能也无法满足项目需求。比如我,项目不仅要求进度条高度灵活变化而且还要在其上面显示文字。于是便想自己造个轮子XDProgressView,通过CALayer和UIView实现,尽可能的和系统原生的UIProgressView保持一致。

Swift reflect的归解档简化工具类(作者:DeveloperJx)
JXAutoEncoder 是一个通过Swift Reflect实现的,自动归解档的类,通过继承该类,可简化Swift下归档、解档的代码。功效类似于MJExtension的一句宏实现自动归解档。只是Swift不支持宏定义,又没有Runtime,一句一句写编码、解码简直写到吐血,才催生出了这个JXAutoEncoder.
效果
使用前
class ArchiverModel: NSObject, NSCoding {
var bool = true
var int = 1
var double = M_PI
var string = ""
var array = ["123", "456"]
var dictionary = ["abc": "cba"]
var data = "hello world".data(using: String.Encoding.utf8)
var date = Date()
/// 归档到文件
func archiveToFile() {
var modelFile = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory,
FileManager.SearchPathDomainMask.userDomainMask,
true)[0]
modelFile += "/model.data"
NSKeyedArchiver.archiveRootObject(self, toFile: modelFile)
}
/// 从文件中解档
///
/// - Returns: 解档后的Model
class func decodedFromFile() throws -> ArchiverModel {
var modelFile = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory,
FileManager.SearchPathDomainMask.userDomainMask,
true)[0]
modelFile += "/model.data"
if FileManager.default.fileExists(atPath: modelFile) {
if let model = NSKeyedUnarchiver.unarchiveObject(withFile: modelFile) as? ArchiverModel {
return model
}else{
throw NSError(domain: "Unarchive fail", code: 100, userInfo: nil)
}
}else{
throw NSError(domain: "File doesn't exists", code: 101, userInfo: nil)
}
}
required init?(coder aDecoder: NSCoder) {
super.init()
if let boolValue = aDecoder.decodeObject(forKey: "bool") as? Bool {
bool = boolValue
}
if let intValue = aDecoder.decodeObject(forKey: "int") as? Int {
int = intValue
}
if let doubleValue = aDecoder.decodeObject(forKey: "double") as? Double {
double = doubleValue
}
if let stringValue = aDecoder.decodeObject(forKey: "string") as? String {
string = stringValue
}
if let arrayValue = aDecoder.decodeObject(forKey: "array") as? [String] {
array = arrayValue
}
if let dictionaryValue = aDecoder.decodeObject(forKey: "dictionary") as? [String: String] {
dictionary = dictionaryValue
}
if let dataValue = aDecoder.decodeObject(forKey: "data") as? Data {
data = dataValue
}
if let dateValue = aDecoder.decodeObject(forKey: "date") as? Date {
date = dateValue
}
}
func encode(with aCoder: NSCoder) {
aCoder.encode(bool, forKey: "bool")
aCoder.encode(int, forKey: "int")
aCoder.encode(double, forKey: "double")
aCoder.encode(string, forKey: "string")
aCoder.encode(string, forKey: "array")
aCoder.encode(string, forKey: "dictionary")
aCoder.encode(string, forKey: "data")
aCoder.encode(string, forKey: "date")
}
}使用后
import JXAutoEncoder
class ArchiverModel: JXAutoEncoder {
/// 归档到文件
func archiveToFile() {
var modelFile = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory,
FileManager.SearchPathDomainMask.userDomainMask,
true)[0]
modelFile += "/model.data"
NSKeyedArchiver.archiveRootObject(self, toFile: modelFile)
}
/// 从文件中解档
///
/// - Returns: 解档后的Model
class func decodedFromFile() throws -> ArchiverModel {
var modelFile = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory,
FileManager.SearchPathDomainMask.userDomainMask,
true)[0]
modelFile += "/model.data"
if FileManager.default.fileExists(atPath: modelFile) {
if let model = NSKeyedUnarchiver.unarchiveObject(withFile: modelFile) as? ArchiverModel {
return model
}else{
throw NSError(domain: "Unarchive fail", code: 100, userInfo: nil)
}
}else{
throw NSError(domain: "File doesn't exists", code: 101, userInfo: nil)
}
}iOS实现画板功能,有趣的涂鸦工具,已封装,简单快捷使用(作者:纠结的哈士奇)
iOS实现画板功能,有趣的涂鸦工具,已封装,简单快捷使用
贝塞尔实现
源码没单独列出来,都在测试demo里。
