关于选择照片和拍照

//选择照片- (IBAction)selectedPhoto:(id)sender { UIImagePickerController *pickVC = [[UIImagePickerController alloc] init]; /* UIImagePickerControllerSourceTypePhotoLibrary, 显示所有文件夹 UIImagePickerControllerSourceTypeCamera, 调用系统摄像头 UIImagePickerControllerSourceTypeSavedPhotosAlbum 显示内置文件夹 */ pickVC.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; pickVC.delegate = self; [self presentViewController:pickVC animated:YES completion:nil]; }
//拍照- (IBAction)cameraPhoto:(id)sender { //判断当前设备是否有摄像头 BOOL isCamer = [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear]; if (!isCamer) { UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"没有可用摄像头" delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:nil, nil]; [alertView show]; return; } UIImagePickerController *pickVC = [[UIImagePickerController alloc] init]; //指定资源的来源：来自摄像头 pickVC.sourceType = UIImagePickerControllerSourceTypeCamera; pickVC.delegate = self; [self presentViewController:pickVC animated:YES completion:NULL]; }
//选择视频资源- (IBAction)selectVedio:(id)sender { UIImagePickerController *pickVC = [[UIImagePickerController alloc] init]; /* UIImagePickerControllerSourceTypePhotoLibrary, 显示所有文件夹 UIImagePickerControllerSourceTypeCamera, 调用系统摄像头 UIImagePickerControllerSourceTypeSavedPhotosAlbum 显示内置文件夹 */ pickVC.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; pickVC.delegate = self; //指定选择媒体资源类型 public.movie 视频类型 public.image 照片类型 pickVC.mediaTypes = @[@"public.movie"]; [self presentViewController:pickVC animated:YES completion:nil];
}
//拍视频- (IBAction)camerVadio:(id)sender { //判断当前设备是否有摄像头 BOOL isCamer = [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear]; if (!isCamer) { UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"没有可用摄像头" delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:nil, nil]; [alertView show]; return; }
UIImagePickerController *pickVC = [[UIImagePickerController alloc] init]; /* UIImagePickerControllerSourceTypePhotoLibrary, 显示所有文件夹 UIImagePickerControllerSourceTypeCamera, 调用系统摄像头 UIImagePickerControllerSourceTypeSavedPhotosAlbum 显示内置文件夹 */ pickVC.sourceType = UIImagePickerControllerSourceTypeCamera; pickVC.delegate = self; //指定选择媒体资源类型 public.movie 视频类型 public.image 照片类型 pickVC.mediaTypes = @[@"public.movie"]; [self presentViewController:pickVC animated:YES completion:nil];
}
#pragma mark -UIImagePickerControllerDelegate//选择一个照片、或者视频调用的协议方法- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{ NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType]; if ([mediaType isEqualToString:@"public.image"]) { //图片 //获取图片 UIImage *img = [info objectForKey:UIImagePickerControllerOriginalImage]; self.imgView.image = img; //判断照片的来源是否来自摄像头 if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) { //将图片保存至相册 UIImageWriteToSavedPhotosAlbum(img, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL); } }else if([mediaType isEqualToString:@"public.movie"]) { // UIImagePickerControllerReferenceURL //1.获取到此资源的url地址 NSURL *url = [info objectForKey:UIImagePickerControllerMediaURL]; //2.创建视频播放器 MPMoviePlayerViewController *moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL:url]; //3.弹出视频播放控制器，自动播放 [self presentMoviePlayerViewControllerAnimated:moviePlayer]; }
//关闭模态视图 [picker dismissViewControllerAnimated:YES completion:nil];}
//通过UIImageWriteToSavedPhotosAlbum 保存图片成功以后，调用的方法- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo{ NSLog(@"保存成功");}