github: https://github.com/wangjinshan/IJSPhotoDemo
UIImagePickerController无死角解析
需要的头文件
#import
#import
-(void) selectImage
{
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
NSLog(@"支持相机");
}
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
{
NSLog(@"支持图库");
}
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum])
{
NSLog(@"支持相片库");
}
if ([UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear])
{
NSLog(@"后置摄像头能用");
}
if ([UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront])
{
NSLog(@"前置摄像头能用");
}
// 指定摄像头的闪光灯是否可用
if ([UIImagePickerController isFlashAvailableForCameraDevice:UIImagePickerControllerCameraDeviceRear])
{
NSLog(@"后置支持闪光灯flash and torch");
}
if ([UIImagePickerController isFlashAvailableForCameraDevice:UIImagePickerControllerCameraDeviceFront])
{
NSLog(@"前置支持闪光灯flash and torch");
}
//指定的源设备上可用的媒体类型，一般就是图片和视频/判断是否支持某种多媒体类型：拍照，视频
/*
"public.image",
"public.movie"
*/
NSLog(@"--1--%@",[UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypePhotoLibrary]);
NSLog(@"--2---%@",[UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera]);
NSLog(@"--3--%@",[UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeSavedPhotosAlbum]);
/*
获得指定摄像头上的可用捕获模式，捕获模式是枚举类型：
UIImagePickerControllerCameraCaptureModePhoto：拍照模式
UIImagePickerControllerCameraCaptureModeVideo：视频录制模式
*/
NSLog(@"--4---%@",[UIImagePickerController availableCaptureModesForCameraDevice:UIImagePickerControllerCameraDeviceRear]);
NSLog(@"--5---%@",[UIImagePickerController availableCaptureModesForCameraDevice:UIImagePickerControllerCameraDeviceFront]);
// 判断当前的sourceType是否可用
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
{
UIImagePickerController * imagePickerVC = [[UIImagePickerController alloc] init]; // 实例化UIImagePickerController控制器
/*
UIImagePickerControllerSourceTypePhotoLibrary, //所有的相册
UIImagePickerControllerSourceTypeCamera, // 相机
UIImagePickerControllerSourceTypeSavedPhotosAlbum // 按照时间排好的图库
*/
imagePickerVC.sourceType = UIImagePickerControllerSourceTypeCamera; // 设置资源来源（相册、相机、图库之一）
// 设置所支持的类型，设置只能拍照，或则只能录像，或者两者都可以
// 媒体类型,默认情况下此数组包含kUTTypeImage，所以拍照时可以不用设置；但是当要录像的时候必须设置，可以设置为kUTTypeVideo（视频，但不带声音）或者kUTTypeMovie（视频并带有声音）
/*
kUTTypeImage 静态图片
kUTTypeVideo 没有声音
kUTTypeMovie 视频有声音
*/
NSArray * arrMediaTypes = @[( NSString *)kUTTypeImage,( NSString *)kUTTypeMovie];
[imagePickerVC setMediaTypes:arrMediaTypes];
/*
allowsEditing // 允许编辑 默认是NO
*/
imagePickerVC.allowsEditing = YES;
// 如果选择的是视屏，允许的视屏时长为20秒
imagePickerVC.videoMaximumDuration = 3;
imagePickerVC.videoQuality = UIImagePickerControllerQualityTypeHigh; // 允许的视屏质量（如果质量选取的质量过高，会自动降低质量）
imagePickerVC.showsCameraControls = YES; //是否显示摄像头控制面板，默认为YES
// 摄像头上覆盖的视图，可用通过这个视频来自定义拍照或录像界面
// imagePickerVC.cameraOverlayView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 100, 20)];
// imagePickerVC.cameraViewTransform = CGAffineTransformMake(0, 0, 1, 2, 3, 4); //旋转角度
/*
UIImagePickerControllerCameraCaptureModePhoto：拍照模式
UIImagePickerControllerCameraCaptureModeVideo：视频录制模式
*/
//摄像头捕获模式，捕获模式是枚举类型
imagePickerVC.cameraCaptureMode = UIImagePickerControllerCameraCaptureModeVideo;
/*
UIImagePickerControllerCameraDeviceRear：后置置摄像头
UIImagePickerControllerCameraDeviceFront：前置摄像头
*/
//摄像头设备，cameraDevice是枚举类型：
imagePickerVC.cameraDevice = UIImagePickerControllerCameraDeviceRear;
/*
UIImagePickerControllerCameraFlashModeOff：关闭闪光灯
UIImagePickerControllerCameraFlashModeAuto：闪光灯自动
UIImagePickerControllerCameraFlashModeOn：打开闪光灯
*/
//闪光灯模式，枚举类型：
imagePickerVC.cameraFlashMode = UIImagePickerControllerCameraFlashModeAuto;
/*
对象方法
*/
// [imagePickerVC takePicture]; //编程方式拍照
[imagePickerVC startVideoCapture]; // 编程方式录制视频
// [imagePickerVC stopVideoCapture]; // 编程方式停止录制视频
// 设置代理，遵守UINavigationControllerDelegate, UIImagePickerControllerDelegate 协议
imagePickerVC.delegate = self;
// 是否允许编辑（YES：图片选择完成进入编辑模式）
imagePickerVC.allowsEditing = YES;
// model出控制器
[self presentViewController:imagePickerVC animated:YES completion:nil];
self.picker = imagePickerVC;
}
}
#pragma mark UIIamgePicker 代理方法
// 媒体拾取完成
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(nullable NSDictionary *)editingInfo
{
NSLog(@"--editingInfo---%@",editingInfo);
}
// 选择结束
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSLog(@"---info----%@",info);
[self.picker dismissViewControllerAnimated:YES completion:nil];
}
// 当用户取消选取时调用
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
}
#pragma mark c 函数 方法
-(void) saveImageToMyAlbum
{
void UIImageWriteToSavedPhotosAlbum(UIImage *image, id completionTarget, SEL completionSelector, void *contextInfo); //保存照片到相簿
BOOL UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(NSString *videoPath); //能否将视频保存到相簿
void UISaveVideoAtPathToSavedPhotosAlbum(NSString *videoPath, id completionTarget, SEL completionSelector, void *contextInfo);
}
//#import
//kUTTypeImage 包含:
/*
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
*/
/*
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;
*/
/*
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;
*/