Swift中获取相册图片与保存到相册

关于这个网上目前位置记录的资料比较少，记录一下这个坑

获取相册图片

   1:  var iPC = UIImagePickerController()

   2:          iPC.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum

   3:          iPC.delegate = self

   4:          presentViewController(iPC, animated: true) { () -> Void in

   5:              print("complete")

   6:          }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

 

   1:  func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {

   2:  //        println(info)

   3:          

   4:          let img = info["UIImagePickerControllerOriginalImage"] as! UIImage

   5:          let pV = PhotoView(frame: paintView.frame, img: img)

   6:          view.addSubview(pV)

   7:          pV.delegate = self

   8:          photoView = pV

   9:          dismissViewControllerAnimated(true, completion: nil)

  10:      }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

 

 

保存到系统相册

   1:   func save(){

   2:          UIGraphicsBeginImageContextWithOptions(bounds.size, false, 0.0)

   3:          var ctx = UIGraphicsGetCurrentContext()

   4:          layer.renderInContext(ctx)

   5:          let img = UIGraphicsGetImageFromCurrentImageContext()

   6:          UIGraphicsEndImageContext()

   7:          UIImageWriteToSavedPhotosAlbum(img, self, "image:didFinishSavingWithError:contextInfo:", nil)

   8:      }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

 

   1:  func image(image: UIImage, didFinishSavingWithError error: NSErrorNSError?, contextInfo:UnsafePointer<Void>){

   2:  //        if let r = error {

   3:  //            print(r)

   4:  //        }else{

   5:  //        let e:NSError? = error

   6:          if let ee = error as NSError? {

   7:              print(ee)

   8:          }else{

   9:              UIAlertView(title:nil, message: "保存成功！", delegate: nil, cancelButtonTitle: "确定").show()

  10:          }

  11:      }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

以上代码在2015/7更新优化

 

 

Ref：

http://stackoverflow.com/questions/25108888/strugglig-to-convert-objective-c-selector-and-target-signature-to-swift

http://stackoverflow.com/questions/24101468/checking-optionals-for-nil-in-swift