UIImagePickerController本地图片视频，相机录像机使用

1.添加framework：MobileCoreServices

2.头：#import <MobileCoreServices/MobileCoreServices.h>

大致代码：

UIImagePickerController *imagePicker=[[UIImagePickerController alloc]init];;//实例并初始化；
imagePicker.delegate=self;//图像选择器委托设置为
//选取本地movie

imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePicker.mediaTypes =  [[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie, nil];
[self presentViewController:imagePicker animated:YES completion:nil];

//选取本地图片
imagePicker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
imagePicker.mediaTypes=[[NSArray alloc] initWithObjects: (NSString *) kUTTypeImage, nil];
[[UIApplication sharedApplication] setStatusBarHidden:YES];//隐藏状态栏；
[self presentViewController:imagePicker animated:YES completion:nil];

//相机
if ([UIImagePickerController isSourceTypeAvailable:   UIImagePickerControllerSourceTypeCamera]){

imagePicker.sourceType=UIImagePickerControllerSourceTypeCamera;
imagePicker.mediaTypes=[[NSArray alloc] initWithObjects: (NSString *) kUTTypeImage, nil];
// [[UIApplication sharedApplication] setStatusBarHidden:YES];//隐藏状态栏；
[self presentViewController:imagePicker animated:YES completion:nil];
}else{
NSLog(@"照相机不可用");
}

//录像机
if ([UIImagePickerController isSourceTypeAvailable:   UIImagePickerControllerSourceTypeCamera]){

imagePicker.sourceType=UIImagePickerControllerSourceTypeCamera;
imagePicker.mediaTypes=[[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie, nil];
[[UIApplication sharedApplication] setStatusBarHidden:YES];//隐藏状态栏；
[self presentViewController:imagePicker animated:YES completion:nil];
}else{
NSLog(@"照相机不可用");
}
3.回调

#pragma mark - UIImagePickerController代理方法

//完成

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{

    NSString *mediaType=[info objectForKey:UIImagePickerControllerMediaType];

    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {//如果是拍照

        UIImage *image;

        //如果允许编辑则获得编辑后的照片，否则获取原始照片

        if (self.imagePicker.allowsEditing) {

            image=[info objectForKey:UIImagePickerControllerEditedImage];//获取编辑后的照片

        }else{

            image=[info objectForKey:UIImagePickerControllerOriginalImage];//获取原始照片

        }

        [self.photo setImage:image];//显示照片

        UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);//保存到相簿

    }else if([mediaType isEqualToString:(NSString *)kUTTypeMovie]){//如果是录制视频

        NSLog(@"video...");

        NSURL *url=[info objectForKey:UIImagePickerControllerMediaURL];//视频路径

        NSString *urlStr=[url path];

        if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(urlStr)) {

            //保存视频到相簿，注意也可以使用ALAssetsLibrary来保存

            UISaveVideoAtPathToSavedPhotosAlbum(urlStr, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);//保存视频到相簿

        }

    }

    [self dismissViewControllerAnimated:YES completion:nil];

}

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{

    NSLog(@"取消");

}

#pragma mark - 私有方法

-(UIImagePickerController *)imagePicker{

    if (!_imagePicker) {

        _imagePicker=[[UIImagePickerController alloc]init];

        _imagePicker.sourceType=UIImagePickerControllerSourceTypeCamera;//设置image picker的来源，这里设置为摄像头

        _imagePicker.cameraDevice=UIImagePickerControllerCameraDeviceRear;//设置使用哪个摄像头，这里设置为后置摄像头

        if (self.isVideo) {

            _imagePicker.mediaTypes=@[(NSString *)kUTTypeMovie];

            _imagePicker.videoQuality=UIImagePickerControllerQualityTypeIFrame1280x720;

            _imagePicker.cameraCaptureMode=UIImagePickerControllerCameraCaptureModeVideo;//设置摄像头模式（拍照，录制视频）

        }else{

            _imagePicker.cameraCaptureMode=UIImagePickerControllerCameraCaptureModePhoto;

        }

        _imagePicker.allowsEditing=YES;//允许编辑

        _imagePicker.delegate=self;//设置代理，检测操作

    }

    return _imagePicker;

}

//视频保存后的回调

- (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo{

    if (error) {

        NSLog(@"保存视频过程中发生错误，错误信息:%@",error.localizedDescription);

    }else{

        NSLog(@"视频保存成功.");

        //录制完之后自动播放

        NSURL *url=[NSURL fileURLWithPath:videoPath];

        _player=[AVPlayer playerWithURL:url];

        AVPlayerLayer *playerLayer=[AVPlayerLayer playerLayerWithPlayer:_player];

        playerLayer.frame=self.photo.frame;

        [self.photo.layer addSublayer:playerLayer];

        [_player play];

    }

}