简单实现swift调用相机和相册的功能，分享代码与学习swift的童鞋共同进步
import UIKit
class ViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate{
var imgView = UIImageView()
var img = UIImage()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
var btn = UIButton()
btn.frame = CGRectMake(50, 120, 200, 40)
btn.backgroundColor = UIColor.orangeColor()
btn.addTarget(self, action: "goCamera", forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(btn)
var btn1 = UIButton()
btn1.frame = CGRectMake(50, 200, 200, 40)
btn1.backgroundColor = UIColor.redColor()
btn1.addTarget(self, action: "goImage", forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(btn1)
imgView.frame = CGRectMake(100, 260, 100, 100)
self.view.addSubview(imgView)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//打开相机
func goCamera(){
//先设定sourceType为相机，然后判断相机是否可用（ipod）没相机，不可用将sourceType设定为相片库
var sourceType = UIImagePickerControllerSourceType.Camera
if !UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera){
sourceType = UIImagePickerControllerSourceType.PhotoLibrary
}
var picker = UIImagePickerController()
picker.delegate = self
picker.allowsEditing = true//设置可编辑
picker.sourceType = sourceType
self.presentViewController(picker, animated: true, completion: nil)//进入照相界面
}
func goImage(){
var pickerImage = UIImagePickerController()
if !UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary){
pickerImage.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
pickerImage.mediaTypes = UIImagePickerController.availableMediaTypesForSourceType(pickerImage.sourceType)!
}
pickerImage.delegate = self
pickerImage.allowsEditing = true
self.presentViewController(pickerImage, animated: true, completion: nil)
}
//选择好照片后choose后执行的方法
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]){
println("choose--------->>")
println(info)
img = info[UIImagePickerControllerEditedImage] as UIImage
imgView.image = img
picker.dismissViewControllerAnimated(true, completion: nil)
}
//cancel后执行的方法
func imagePickerControllerDidCancel(picker: UIImagePickerController){
println("cancel--------->>")
picker.dismissViewControllerAnimated(true, completion: nil)
}
}