(1)代理
<UINavigationControllerDelegate, UIImagePickerControllerDelegate>delegate
(2)几个基本属性设置
sourceType //设置资源获取类型
allowsEditing //是否允许图片编辑
(3)几个判断类方法
/**是否可以获取该类型资源*/
+ (BOOL)isSourceTypeAvailable:(UIImagePickerControllerSourceType)sourceType;
/**是否可以获取该类型相机(前置和后置 )*/
+ (BOOL)isCameraDeviceAvailable:(UIImagePickerControllerCameraDevice)cameraDevice;
/**是否可以获取闪光灯*/
+ (BOOL)isFlashAvailableForCameraDevice:(UIImagePickerControllerCameraDevice)cameraDevice;
(4)代理方法(iOS4后仅存2个可用)
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info;
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker;
/** 参数info中的键 */
NSString *const UIImagePickerControllerMediaType ;指定用户选择的媒体类型(文章最后进行扩展)
NSString *const UIImagePickerControllerOriginalImage ;原始图片
NSString *const UIImagePickerControllerEditedImage ;修改后的图片
NSString *const UIImagePickerControllerCropRect ;裁剪尺寸
NSString *const UIImagePickerControllerMediaURL ;媒体的URL
NSString *const UIImagePickerControllerReferenceURL ;原件的URL
NSString *const UIImagePickerControllerMediaMetadata;当来数据来源是照相机的时候这个值才有效
/** UIImagePickerControllerMediaType */
UIImagePickerControllerMediaType 包含着KUTTypeImage 和KUTTypeMovie
KUTTypeImage 包含:
const CFStringRef kUTTypeImage ;抽象的图片类型
const CFStringRef kUTTypeJPEG ;
const CFStringRef kUTTypeJPEG2000 ;
const CFStringRef kUTTypeTIFF ;
const CFStringRef kUTTypePICT ;
const CFStringRef kUTTypeGIF ;
const CFStringRef kUTTypePNG ;
const CFStringRef kUTTypeQuickTimeImage ;
const CFStringRef kUTTypeAppleICNS
const CFStringRef kUTTypeBMP;
const CFStringRef kUTTypeICO;
KUTTypeMovie 包含:
const CFStringRef kUTTypeAudiovisualContent ;抽象的声音视频
const CFStringRef kUTTypeMovie ;抽象的媒体格式(声音和视频)
const CFStringRef kUTTypeVideo ;只有视频没有声音
const CFStringRef kUTTypeAudio ;只有声音没有视频
const CFStringRef kUTTypeQuickTimeMovie ;
const CFStringRef kUTTypeMPEG ;
const CFStringRef kUTTypeMPEG4 ;
const CFStringRef kUTTypeMP3 ;
const CFStringRef kUTTypeMPEG4Audio ;
const CFStringRef kUTTypeAppleProtectedMPEG4Audio;