Ios 格式化url以在facebook帖子中显示为字符串

我试图在facebook上发布一个字符串格式的链接。请参阅下面的相关代码：

NSMutableDictionary* params = [[NSMutableDictionary alloc] init];

NSString *modifiedTitle = [NSString stringWithFormat:@"<a href= https://www.google.com> My App </a>"];
[params setObject:modifiedTitle forKey:@"message"];
[params setObject:UIImagePNGRepresentation(picture) forKey:@"picture"];


[FBRequestConnection startWithGraphPath:@"me/photos"
                             parameters:params
                             HTTPMethod:@"POST"
                      completionHandler:^(FBRequestConnection *connection,
                                          id result,
                                          NSError *error)
         if (error)
     {
         //showing an alert for failure
         NSLog(@"ERROR in posting image to Facebook");
     }
     else
     {
         //showing an alert for success
         NSLog(@"Result after posting image successfully = %@",result);
     }
     // button.enabled = YES;
 }];

---

首先，确保您正在向startWithGraph中发布一个不可变字典。。。方法通过使用复制方法：

NSDictionary* paramsImmutable = params.copy;
[FBRequestConnection startWithGraphPath:@"me/photos"
                         parameters:paramsImmutable
                         HTTPMethod:@"POST"
                  completionHandler:^(FBRequestConnection *connection,
                                      id result,
                                      NSError *error)

这样，在方法的生命周期内，您就不会担心该对象的任何更改

接下来，您的参数是否在url周围包含任何类型的引号？即

NSString *modifiedTitle = @"<a href='https://www.google.com'>My App</a>";

NSString*modifiedTitle=@”；

---

这只是一个开始。

我让字典不可变，就像你在上面所做的那样，然后我开始在发布时使用字典。我刚刚用错误日志更新了代码，

error in posting image to Facebook

NSDictionary* paramsImmutable = params.copy;
[FBRequestConnection startWithGraphPath:@"me/photos"
                         parameters:paramsImmutable
                         HTTPMethod:@"POST"
                  completionHandler:^(FBRequestConnection *connection,
                                      id result,
                                      NSError *error)

NSString *modifiedTitle = @"<a href='https://www.google.com'>My App</a>";