源码：https://github.com/potato512/SYSwiftLearning
UIImagePickerController主要用来选择图片，或是拍照，或是录像。其中图片选择时，既可以从相册选择，也可以从图库选择。
但不管是选择图片，还是拍照，还是录像都是通过设置属性"sourceType"来实现的。
// 注意添加相关framework头文件 // 使用相机设备（AVCaptureDevice）功能时 import Photos // 使用图片库功能 import AssetsLibrary // 使用录制视频功能 import MobileCoreServices
// MARK: 图库
func photosShow()
{
// 是否支持图片库
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.SavedPhotosAlbum)
{
if self.photosPicker == nil
{
// 实例化
self.photosPicker = UIImagePickerController()
// 图库类型
self.photosPicker.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum
// 代理对象（注意添加协议 UIImagePickerControllerDelegate、UINavigationControllerDelegate，及实现代理方法）
self.photosPicker.delegate = self
// 设置图片可编辑
self.photosPicker.allowsEditing = true
// 改navigationBar背景色
self.photosPicker.navigationBar.barTintColor = UIColor.greenColor()
// 改navigationBar标题色
self.photosPicker.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.redColor()]
// 改navigationBar的button字体色
self.photosPicker.navigationBar.tintColor = UIColor.blueColor()
}
// 弹出图库视图控制器
self.presentViewController(self.photosPicker,animated: true,completion: nil)
}
else
{
print("读取图库失败")
}
}
// MARK: 相册
func imageShow()
{
// 是否支持相册
if UIImagePickerController.isValidImagePickerType(type: UIImagePickerType.UIImagePickerTypePhotoLibrary)
{
if self.imagePicker == nil
{
self.imagePicker = UIImagePickerController()
self.imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
self.imagePicker.delegate = self
self.imagePicker.setImagePickerStyle(UIColor.brownColor(),titleColor: UIColor.greenColor(),buttonTitleColor: UIColor.yellowColor())
}
// 弹出图库视图控制器
self.presentViewController(self.imagePicker,completion: nil)
}
else
{
print("读取相册失败")
}
}
// MARK: UIImagePickerControllerDelegate,UINavigationControllerDelegate
func imagePickerController(picker: UIImagePickerController,didFinishPickingMediaWithInfo info: [String : AnyObject]) {
print("1 图片选择：\(info)")
// 相册、图库
if picker.isEqual(self.imagePicker) || picker.isEqual(self.photosPicker)
{
// 选择的图片参数
/*
指定用户选择的媒体类型 UIImagePickerControllerMediaType
原始图片 UIImagePickerControllerOriginalImage
修改后的图片 UIImagePickerControllerEditedImage
裁剪尺寸 UIImagePickerControllerCropRect
媒体的URL UIImagePickerControllerMediaURL
原件的URL UIImagePickerControllerReferenceURL
当来数据来源是照相机的时候这个值才有效 UIImagePickerControllerMediaMetadata
*/
// 获取选择的原图
let pickedImage = info[UIImagePickerControllerOriginalImage] as! UIImage
print(pickedImage)
// 获取选择的图片引用路径（注意：添加类 import Photos）
let pickedURL:NSURL = info[UIImagePickerControllerReferenceURL] as! NSURL
let fetchResult:PHFetchResult = PHAsset.fetchAssetsWithALAssetURLs([pickedURL],options: nil)
let asset:PHAsset = fetchResult.firstObject as! PHAsset
PHImageManager.defaultManager().requestImageDataForAsset(asset,options: nil,resultHandler: {
(imageData: NSData?,dataUTI: String?,orientation: UIImageOrientation,info: [NSObject : AnyObject]?) in
//获取实际路径
let imageNSURL: NSURL = info!["PHImageFileURLKey"] as! NSURL
print("路径：",imageNSURL)
print("文件名：",imageNSURL.lastPathComponent)
})
// 显示图片
self.imageview.image = pickedImage
// 图片保存到相册
// UIImageWriteToSavedPhotosAlbum(pickedImage,self,Selector("imageSave:error:contextInfo:"),nil)
}
// 退出图片选择控制器
picker.dismissViewControllerAnimated(true,completion: nil)
}
func imagePickerControllerDidCancel(picker: UIImagePickerController) {
print("2 放弃图片选择")
// 退出图片选择控制器
picker.dismissViewControllerAnimated(true,completion: nil)
}
// 扩展类方法 import Foundation import UIKit import Photos /// 相片选择器类型：相册 PhotoLibrary，图库 SavedPhotosAlbum，相机 Camera，前置摄像头 Front，后置摄像头 Rear public enum UIImagePickerType:Int { /// 相册 PhotoLibrary case UIImagePickerTypePhotoLibrary = 1 /// 图库 SavedPhotosAlbum case UIImagePickerTypeSavedPhotosAlbum = 2 /// 相机 Camera case UIImagePickerTypeCamera = 3 /// 前置摄像头 Front case UIImagePickerTypeCameraFront = 4 /// 后置摄像头 Rear case UIImagePickerTypeCameraRear = 5 } extension UIImagePickerController { // MARK: - 设备使用有效性判断 // 相册 PhotoLibrary，图库 SavedPhotosAlbum，相机 Camera，前置摄像头 Front，后置摄像头 Rear public class func isValidImagePickerType(type imagePickerType:UIImagePickerType) -> Bool { switch imagePickerType { case .UIImagePickerTypePhotoLibrary: if self.isValidPhotoLibrary { return true } return false break case .UIImagePickerTypeSavedPhotosAlbum: if self.isValidSavedPhotosAlbum { return true } return false break case .UIImagePickerTypeCamera: if self.isValidCameraEnable && self.isValidCamera { return true } return false break case .UIImagePickerTypeCameraFront: if self.isValidCameraEnable && self.isValidCameraFront { return true } return false break case .UIImagePickerTypeCameraRear: if self.isValidCamera && self.isValidCameraRear { return true } return false break default: return false } } /// 相机设备是否启用 public class var isValidCameraEnable:Bool { get { let cameraStatus = AVCaptureDevice.authorizationStatusForMediaType(AVMediaTypeAudio) if cameraStatus == AVAuthorizationStatus.Denied { return false } return true } } /// 相机Camera是否可用（是否有摄像头） public class var isValidCamera:Bool { get { if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera) { return true } return false } } /// 前置相机是否可用 public class var isValidCameraFront:Bool { get { if UIImagePickerController.isCameraDeviceAvailable(UIImagePickerControllerCameraDevice.Front) { return true } return false } } /// 后置相机是否可用 public class var isValidCameraRear:Bool { get { if UIImagePickerController.isCameraDeviceAvailable(UIImagePickerControllerCameraDevice.Rear) { return true } return false } } /// 相册PhotoLibrary是否可用 public class var isValidPhotoLibrary:Bool { get { if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary) { return true } return false } } /// 图库SavedPhotosAlbum是否可用 public class var isValidSavedPhotosAlbum:Bool { get { if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.SavedPhotosAlbum) { return true } return false } } // MARK: - 属性设置 func setImagePickerStyle(bgroundColor:UIColor,titleColor:UIColor,buttonTitleColor:UIColor) { // 改navigationBar背景色 if let bgroundColorTmp:UIColor = bgroundColor { self.navigationBar.barTintColor = bgroundColorTmp } // 改navigationBar标题色 if let titleColorTmp:UIColor = titleColor { self.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: titleColorTmp] } // 改navigationBar的button字体色 if let buttonTitleColorTmp:UIColor = buttonTitleColor { self.navigationBar.tintColor = buttonTitleColorTmp } } }
需要注意：在使用过程中可能会出现UIImagePickerController的标题和按钮的字体为英文，可以通过修改配置信息实现中文显示。
2、修改手机或模拟器的语言
3、info.plist配置修改
原文链接：https://www.f2er.com/swift/322805.html
