通过自己的摸索，终于弄出来了……
class SelectViewController:UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIActionSheetDelegate {
var myActionSheet:UIActionSheet?
var picker:UIImagePickerController?
overridefunc viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
@IBOutletweak var img:UIImageView!
@IBOutletweak var btn_select:UIButton!
overridefunc didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func openMenu()
{
myActionSheet =UIActionSheet(title: nil,delegate:self,cancelButtonTitle: "取消",destructiveButtonTitle:nil,otherButtonTitles:"打开相机","从相册选取")
myActionSheet?.showInView(self.view)
}
func actionSheet(actionSheet:UIActionSheet,clickedButtonAtIndex buttonIndex:Int) {
if(buttonIndex ==myActionSheet!.cancelButtonIndex)
{
NSLog("取消")
}
switch(buttonIndex)
{
case 1:takePhote()
break
case 2:localPhoto()
break
default :break
}
}
//拍照
func takePhote()
{
var sourceType :UIImagePickerControllerSourceType =UIImagePickerControllerSourceType.Camera
if(UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera))
{
picker =UIImagePickerController()
picker?.delegate =self
picker!.allowsEditing =true
picker?.sourceType = sourceType
self.presentViewController(picker!,animated:true,completion: nil)
}
else{
NSLog("模拟器中无法打开照相机，请在真机上使用")
}
}
//选取当地的照片
func localPhoto()
{
picker =UIImagePickerController()
picker!.sourceType =UIImagePickerControllerSourceType.PhotoLibrary
picker!.allowsEditing =true
picker!.delegate =self
self.presentViewController(picker!,completion: nil)
}
//设置bar的颜色
func navigationController(navigationController:UINavigationController,willShowViewController viewController:UIViewController,animated: Bool) {
viewController.navigationController?.navigationBar.barTintColor =UIColor(red: 128/255,green: 167/255,blue: 223/255,alpha: 1)
viewController.navigationItem.rightBarButtonItem?.tintColor =UIColor.whiteColor()
}
//点击按钮时触发
@IBActionfunc onChange(sender: AnyObject) {
openMenu()
}
//选取图片之后
func imagePickerController(picker:UIImagePickerController,didFinishPickingMediaWithInfo info: [NSObject :AnyObject]) {
var type :NSString = info["UIImagePickerControllerMediaType"]as NSString
if(type.isEqualToString("public.image"))
{
var image :UIImage = info["UIImagePickerControllerEditedImage"]as UIImage
redrwaImage(image,withParam: 5)
picker.dismissViewControllerAnimated(true,completion:nil)
}
}
//设置圆形图片
func redrwaImage(image:UIImage,withParam inset:CGFloat)
{
UIGraphicsBeginImageContext(image.size)
var context:CGContextRef =UIGraphicsGetCurrentContext()
CGContextSetLineWidth(context,2)
CGContextSetStrokeColorWithColor(context,UIColor.whiteColor().CGColor)
var rect:CGRect =CGRectMake(inset,inset,CGFloat(image.size.width- inset * 2),CGFloat(image.size.height- inset * 2))
CGContextAddEllipseInRect(context,rect)
CGContextClip(context)
image.drawInRect(rect)
CGContextAddEllipseInRect(context,rect)
CGContextStrokePath(context)
var newing =UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
img.image = newing
}
//点击取消按钮时触发
func imagePickerControllerDidCancel(picker:UIImagePickerController) {
picker.dismissViewControllerAnimated(true,completion:nil)
}
}
原文链接：https://www.f2er.com/swift/326879.html