iphone - 相机照片保存在文档文件夹中，并在 iPhone 的桌面 View 中显示名称和 View

Question

我想用相机拍照并保存在文档目录中，名称和图像在 UITableViewCell 中可见。

如果我选择任何一行，相应的行图像将转到带有名称和图像的下一个 View 。

请给出您的想法、建议和引用代码。

Answer 1

尝试此方法将 UIImage 存储在本地目录中...

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

 UIImage *pickedImage = [info objectForKey:UIImagePickerControllerEditedImage];
 [self addImage:pickedImage toCacheWithIdentifier:@"NAME OF THE IMAGE"];

}

- (void)addImage:(UIImage *)image toCacheWithIdentifier:(NSString *)identifier {

    NSString *folderPath = @"LOCAL DIRECTORY PATH ";
    if(![[NSFileManager defaultManager] fileExistsAtPath:folderPath isDirectory:nil]) {

        [[NSFileManager defaultManager] createDirectoryAtPath:folderPath withIntermediateDirectories:YES attributes:nil error:nil];
    }

    NSString *fileName = [NSString stringWithFormat:@"%@.png",identifier];

 fileName = [folderPath stringByAppendingPathComponent:fileName];

 NSData *imageData = UIImagePNGRepresentation(image);

   [imageData writeToFile:fileName atomically:YES];
}

要在单击 tableView 单元格时检索图像，请从 didselectRowAtIndexPath 调用此方法 ....

- (UIImage *)imageFromCacheWithIdentifier:(NSString *)identifier {

    NSString *folderPath = @"LOCAL DIRECTORY PATH ";

    NSString *fileName = [NSString stringWithFormat:@"%@.png",identifier];

    fileName = [folderPath stringByAppendingPathComponent:fileName];

    if([UIImage imageWithContentsOfFile:fileName]) {

        return [UIImage imageWithContentsOfFile:fileName];

    }

    return nil;
}