## 一：效果  ## 二：代码 相机部分就简单多了，几行代码调用而已，但是如果你要是想实现更多丰富的功能，需要自己写。利用AssetsLibrary.framework，利用这个框架可以获得手机上的所有相册图片，写一个图片选择控制器。 ~~~ - (void)openCamera { [self openImagePickerController:UIImagePickerControllerSourceTypeCamera]; } - (void)openAlbum { // 如果想自己写一个图片选择控制器，得利用AssetsLibrary.framework，利用这个框架可以获得手机上的所有相册图片 // UIImagePickerControllerSourceTypePhotoLibrary > UIImagePickerControllerSourceTypeSavedPhotosAlbum [self openImagePickerController:UIImagePickerControllerSourceTypePhotoLibrary]; } - (void)openImagePickerController:(UIImagePickerControllerSourceType)type { if (![UIImagePickerController isSourceTypeAvailable:type]) return; UIImagePickerController *ipc = [[UIImagePickerController alloc] init]; ipc.sourceType = type; ipc.delegate = self; [self presentViewController:ipc animated:YES completion:nil]; } ~~~ 实现代理 ~~~ #pragma mark - UIImagePickerControllerDelegate /** * 从UIImagePickerController选择完图片后就调用（拍照完毕或者选择相册图片完毕） */ - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissViewControllerAnimated:YES completion:nil]; // info中就包含了选择的图片 UIImage *image = info[UIImagePickerControllerOriginalImage]; // 添加图片到photosView中 [self.photosView addPhoto:image]; // dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ // self.picking = NO; // }); } ~~~