iPhone如何從我的文檔目錄中顯示照片？

Question

我一直在使用UIImagePicker控制器拍照並將其保存到我的文檔目錄中。現在我想能夠將它們呈現給用戶進行採摘。 UIImagePicker有着簡潔的functionallity

imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; 

當我設置該屬性從庫中所有的影像。有什麼方法可以使用UIImagePicker從文檔目錄中顯示我的照片？

Answer 1

UIImagePicker唯一支持的來源是圖書館，相機或保存的相冊。參見UIImagePickerControllerSourceType @http://developer.apple.com/library/ios/#documentation/uikit/reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html

enum { 
    UIImagePickerControllerSourceTypePhotoLibrary, 
    UIImagePickerControllerSourceTypeCamera, 
    UIImagePickerControllerSourceTypeSavedPhotosAlbum 
}; 
typedef NSUInteger UIImagePickerControllerSourceType;