擴充方法
發表於 : 週六 12月 05, 2015 3:43 pm
代碼: 選擇全部
import Foundation
import SQLite
extension UIImage
{
func toBase64() -> String
{
let imageData = UIImagePNGRepresentation(self)!
return imageData.base64EncodedStringWithOptions(.Encoding64CharacterLineLength)
}
}
extension UIViewController
{
func ShowDismissMessage(title: String, message: String)
{
let alertController = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Dismiss", style: UIAlertActionStyle.Default,handler: nil))
self.presentViewController(alertController, animated: true, completion: nil)
alertController.AutoDismiss()
}
func ShowCompletedMessage(title: String, message: String)
{
let alertController = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Done", style: UIAlertActionStyle.Default,handler: nil))
self.presentViewController(alertController, animated: true, completion: nil)
alertController.AutoDismiss()
}
func ShowConfirmMessage(message: String, okAction: () -> Void, cancelAction: () -> Void)
{
let alertController = UIAlertController(title: "Confirm", message: message, preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Do it!", style: .Default, handler: { (action: UIAlertAction!) in
okAction()
}))
alertController.addAction(UIAlertAction(title: "Cancel", style: .Default, handler: { (action: UIAlertAction!) in
cancelAction()
}))
self.presentViewController(alertController, animated: true, completion: nil)
}
}
extension UIAlertController
{
func AutoDismiss()
{
// Delay the dismissal by 2 seconds
let delay = 2.0 * Double(NSEC_PER_SEC)
let time = dispatch_time(DISPATCH_TIME_NOW, Int64(delay))
dispatch_after(time, dispatch_get_main_queue(), {
self.dismissViewControllerAnimated(true, completion: nil)
})
}
}
extension String
{
func AddTenPercent() -> String
{
if(GlobalVariables.IsCanada)
{
return String(Float(self)! + Float(self)! * 0.1)
}
return self
}
func ShowCanadaOrOriginal(canadaMSRP: String) -> String
{
if(GlobalVariables.IsCanada)
{
return canadaMSRP
}
return self
}
func ShowCanadaOrOriginal(style: String, model: String) -> String
{
if(GlobalVariables.IsCanada)
{
print("IsCanada: \(style) \(model)")
let m = ProductModel()
let vm: [ProductViewModel] = m.GetAllByStyleAndModel(style, model: model)
print("\(vm[0].CanadaMSRP)")
return vm.count > 0 ? vm[0].CanadaMSRP : "N/A"
}
print("Not IsCanada: \(style) \(model)")
return self
}
func toDouble() -> Double? {
return NSNumberFormatter().numberFromString(self)?.doubleValue
}
var floatValue: Float {
return (self as NSString).floatValue
}
func toImage() -> UIImage
{
let decodeData = NSData(base64EncodedString: self, options: NSDataBase64DecodingOptions(rawValue: 0))
let decodedIamge = UIImage(data: decodeData!)
return decodedIamge!
}
func replace(target: String, withString: String) -> String
{
return self.stringByReplacingOccurrencesOfString(target, withString: withString, options: NSStringCompareOptions.LiteralSearch, range: nil)
}
func toCurrency() -> String
{
let formatter = NSNumberFormatter()
formatter.numberStyle = .CurrencyStyle
return formatter.stringFromNumber(Float(self)!)!
}
func PadLeft(totalWidth: Int, withString: String) -> String {
let toPad = totalWidth - self.characters.count
if toPad < 1 {
return self
}
return "".stringByPaddingToLength(toPad, withString: withString, startingAtIndex: 0) + self
}
func PadLeft(totalWidth: Int) -> String {
return self.PadLeft(totalWidth, withString: " ")
}
func PadRight(totalWidth: Int) -> String {
return self.PadRight(totalWidth, withString: " ")
}
func PadRight(totalWidth: Int, withString: String) -> String {
return stringByPaddingToLength(totalWidth, withString: withString, startingAtIndex: 0)
}
static func IsNullOrEmpty(value: String?) -> Bool
{
return value == nil || value!.isEmpty
}
static func IsNullOrWhiteSpace(value: String?) -> Bool
{
return IsNullOrEmpty(value) ||
(value!.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())).characters.count == 0
}
}
extension Float
{
func toCurrency() -> String
{
let formatter = NSNumberFormatter()
formatter.numberStyle = .CurrencyStyle
return formatter.stringFromNumber(self)!
}
func toInt() -> Int? {
if self > Float(Int.min) && self < Float(Int.max) {
return Int(self)
} else {
return nil
}
}
}
// 擴充到 NSDate 物件
extension NSDate
{
func FullDateTime() -> String
{
return xxx
}
}