如何在 Xcode 上按高度调整 Facebook 个人资料图片的大小？

Posted 2023-02-25

【中文标题】如何在 Xcode 上按高度调整 Facebook 个人资料图片的大小？

【英文标题】：How to resize Facebook Profile Picture by height on Xcode?

【发布时间】：2013-05-16 08:28:18

【问题描述】：

如何使用 WIDTH: AUTO & HEIGHT: x amount 调整 Facebook 头像的大小？下面的代码有效，但是当头像更宽时，图像看起来很狭窄。

/**

* 更新头像 */ -（无效）handleAvatar if ([[个人账号] getAvatar]) if (![self avatarDrawn]) [self.avatarImageView setHidden:NO];

        [ApiGateway avatarImage: [self account]
              completionHandler: ^(UIImage *fetchedImage, NSURL *fetchedURL, BOOL isInCache) 
                  UIImage * roundedImage = [UIImage roundImage:[UIImage imageWithImage:fetchedImage scaledToSize:self.avatarImageView.frame.size] borderWidth:7.0f];
                  [[self avatarImageView] setImage:roundedImage];
                  [self setAvatarDrawn:YES];
                  /**
                   @todo Remove strange thin border
                   */
               errorHandler:^(NSError *error) 
                  [Util showNetworkError:error];
              ];
    
 else 
    [self.avatarImageView setHidden:YES];

【参考方案1】：

通过指定 FBRequestConnection 参数的宽度和高度来修复。

    /**
 * Try to fetch an avatar
 */
- (void) sessionStateChanged:(NSNotification*)notification 
    if ([[self account] useFacebookAuthentication])
        // Try and fetch an avatar
        if ([[FBSession activeSession] isOpen]) 
            // First up, get the facebook User data
            [FBRequestConnection startWithGraphpath: @"me"
                                         parameters: [NSDictionary dictionaryWithObject: @"picture.width(200).height(200)" forKey: @"fields"]
                                         HTTPMethod: @"GET"
                                  completionHandler: ^(FBRequestConnection *connection, id<FBGraphUser> fbuser, NSError *error) 
                                      if (!error) 
                                          // Set Avatar to account
                                          [[self account] setAvatar:[fbuser objectForKey:@"picture"][@"data"][@"url"]];
                                          // Update cell
                                          NSIndexPath *mypath = [NSIndexPath indexPathForRow:0 inSection:0];
                                          DashboardCell *cell = (DashboardCell *)[[self tableView] cellForRowAtIndexPath:mypath];
                                          [cell updateUI];
                                       else 
                                          NSLog(@"FB error %@", error);
                                      
                                  ];