Question

我试图向Facebook分享一个“故事”，其中包含一个名为share的动作，以及一个名为“picture_location”的对象。 “picture_location”具有名为“location”的自定义GeoPoint属性。

我想要的是能够在用户的墙上展示一个类似于：

的故事

UserName 使用 AppName 分享图片的位置。

问题不在于故事的格式，而是显示地图附件。

地图附件还应显示一个标记，以显示在“位置”地理点中传递的坐标。

我试图解决这个问题3个小时甚至没有成功。

到目前为止，这就是我所拥有的：

NSMutableDictionary<FBGraphObject> *openGraphObject =
            [FBGraphObject openGraphObjectForPostWithType:@"*namespace*:picture_location"
                                                    title:@"Some Title"
                                                    image:nil
                                                      url:nil
                                              description:nil];

openGraphObject[ @"location" ] = @{ @"latitude": self.imageLatitude, @"longitude": self.imageLongitude }; // imageLatitude and imageLongitude are NSNumbers


// Create an action
id<FBOpenGraphAction> action = (id<FBOpenGraphAction>)[FBGraphObject graphObject];

// Link the object to the action
[action setObject:openGraphObject forKey:@"picture_location"];


// Check if the Facebook app is installed and we can present the share dialog
FBOpenGraphActionParams *params = [[FBOpenGraphActionParams alloc] init];
params.action = action;
params.actionType = @"*namespace*:share";

// If the Facebook app is installed and we can present the share dialog
if([FBDialogs canPresentShareDialogWithOpenGraphActionParams:params])
{
    // Show the share dialog
    [FBDialogs presentShareDialogWithOpenGraphAction:action
                                          actionType:@"*namespace*:share"
                                 previewPropertyName:@"picture_location"
                                             handler:^(FBAppCall *call, NSDictionary *results, NSError *error) {
                                                                 if(error) {
                                                                     // There was an error
                                                                     NSLog([NSString stringWithFormat:@"Error publishing story: %@", error.description]);
                                                                 } else {
                                                                     // Success
                                                                     NSLog(@"result %@", results);
                                                                 }
                                                             }];

// If the Facebook app is NOT installed and we can't present the share dialog
} else {
     // FALLBACK GOES HERE
}

但结果是Facebook应用程序打开了，带有正确的故事文本和标题，但是图像为空白而没有地图。

编辑：这些是类似的问题，其解决方案我已经尝试过但无济于事。

Answer 1

解决这个问题的正确方法是参数的发送方式。至少我无法为iOS找到任何官方文档。

如果您的对象具有geopoint属性，则Facebook会自动为您标记地点：

故事选择了地图附件，而不是通常的附件。
在地图附件选项中，在标记/图钉字段中选择了自定义的地理点属性。
您设置＆＃34; previewPropertyName＆＃34;成为这个自定义属性
最重要的是：您的自定义属性必须包含在＆＃34;数据＆＃34;像这样的字典：

openGraphObject [@＆＃34; data＆＃34;] = @ {@＆＃34; location＆＃34;：@ {@＆＃34;纬度＆＃34;： self.imageLatitude，@＆＃34;经度＆＃34;：self.imageLongitude}};

示例代码：

NSLog(@"Sharing: Facebook Location Share");

NSMutableDictionary<FBGraphObject> *openGraphObject =
[FBGraphObject openGraphObjectForPostWithType:@"*namespace*:location"
                                        title:@"Location to share"
                                        image:mapImage // This is the one that will be shown on the preview share dialogue
                                          url:@"An URL to link to"
                                  description:@"A description"];

// THIS is the key, the custom properties MUST be within a dictionary called "data"
openGraphObject[@"data"] = @{@"location": @{@"latitude": self.imageLatitude, @"longitude": self.imageLongitude }};

// Create an action
id<FBOpenGraphAction> action = (id<FBOpenGraphAction>)[FBGraphObject graphObject];

// Link the object to the action
[action setObject:openGraphObject forKey:@"location"];


// Check if the Facebook app is installed and we can present the share dialog
FBOpenGraphActionParams *params = [[FBOpenGraphActionParams alloc] init];
params.action = action;
params.actionType = @"*namespace*:put";

// If the Facebook app is installed and we can present the share dialog
if([FBDialogs canPresentShareDialogWithOpenGraphActionParams:params])
{
    // Show the share dialog
    [FBDialogs presentShareDialogWithOpenGraphAction:action
                                          actionType:@"*namespace*:put"
                                 previewPropertyName:@"location"
                                             handler:^(FBAppCall *call, NSDictionary *results, NSError *error) {
                                                 if(error) {
                                                     // There was an error
                                                     NSLog(@"%@",[NSString stringWithFormat:@"Error publishing story: %@", error.description]);
                                                 } else {
                                                     // Success
                                                     NSLog(@"result %@", results);
                                                 }
                                             }];

    // If the Facebook app is NOT installed and we can't present the share dialog
}
else
{
    // Could present an alert or use the Feed Dialogue instead
}

在Facebook上分享地图作为图形对象发布（地图附件）

1 个答案: