使用App Links Hosting API从iOS应用程序在Facebook上共享链接

概述我老老实实地花了几个小时试图让它发挥作用.不幸的是 Facebook& App Link’s documentation还不够清楚.甚至是 App Links video from F8. 应用要求： >分享FB作为Open Graph故事的链接,用户可以点击该故事将其直接带入我的应用程序并执行特定任务(我的应用程序需要从链接接收特定参数) >在没有FB登录的情况下将链接共享到FB(即通过共享对话 我老老实实地花了几个小时试图让它发挥作用.不幸的是 Facebook& App Link’s documentation还不够清楚.甚至是 App Links video from F8.

应用要求：

>分享FB作为Open Graph故事的链接,用户可以点击该故事将其直接带入我的应用程序并执行特定任务(我的应用程序需要从链接接收特定参数)
>在没有FB登录的情况下将链接共享到FB(即通过共享对话框并切换到本机iOS FB应用程序而不是使用API​​调用).

迄今取得的进展：

我正在使用以下代码来创建托管的应用程序链接(因为我只有移动内容),根据FB developer’s website under Publishing iOS SDK.

NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:                            @"{My app name}",@"name",{custom URL},@"al:iphone:url",@"{app store ID}",@"al:iphone:app_store_ID",@"{My app name}",@"al:iphone:app_name",@"{\"should_fallback\": false}",@"web",fbAccesstoken,@"access_token",nil                            ];/* make the API call */[FBRequestConnection startWithGraPHPath:@"/{FB app ID}/app_link_hosts"                             parameters:params                             httpMethod:@"POST"                      completionHandler:^(                                              FBRequestConnection *connection,ID result,NSError *error                                              ) {                              /* handle the result */                              NSLog(@"Result = %@",result);                              if(error) NSLog(@"error = %@",error);                          }];

接下来我将OG故事发布到FB(这是很好但没有正确的网址)

// Create OG objectID<FBGraphObject> object =[FBGraphObject openGraphObjectForPostWithType:@"{app name}:{FB object_name}"                                        Title:@"Test link"                                        image:@"https://cdn3.iconfinder.com/data/icons/picons-social/57/56-apple-512.png" // hosted wallpaper with unique ID for background                                          url:nil // Assuming I need to put the url to the app link host object here??                                  description:@"Click to on this test link!"];// Create an actionID<FBOpenGraphAction> action = (ID<FBOpenGraphAction>)[FBGraphObject graphObject];// link the object to the action[action setobject:object forKey:@"{FB object name}"];// Check if the Facebook app is installed and we can present the share dialogFBOpenGraphActionParams *params = [[FBOpenGraphActionParams alloc] init];params.action = action;params.actionType = @"{app name}:{FB action name}";// If the Facebook app is installed and we can present the share dialogif([FBDialogs canPresentShareDialogWithOpenGraphActionParams:params]) {    // Show the share dialog    [FBDialogs presentShareDialogWithOpenGraphAction:action                                          actionType:@"{app name}:{FB action name}"                                 prevIEwPropertyname:@"{FB object name}"                                             handler:^(FBAppCall *call,NSDictionary *results,NSError *error) {                                                 if(error) {                                                     // An error occurred,we need to handle the error                                                     // See: https://developers.facebook.com/docs/ios/errors                                                     NSLog(@"Error publishing story: %@",error.description);                                                 } else {                                                     // Success                                                     NSLog(@"result %@",results);                                                 }                                             }]; }

要在有人点击FB OG故事中的链接时处理传入的URL,我已根据FB文档将以下代码添加到AppDelegate.m – 请参阅Handling incoming links

- (BOol)application:(UIApplication *)application            openURL:(NSURL *)url  sourceApplication:(Nsstring *)sourceApplication         annotation:(ID)annotation {    BOol urlWasHandled =    [FBAppCall handleOpenURL:url           sourceApplication:sourceApplication             fallbackHandler:     ^(FBAppCall *call) {         // Parse the incoming URL to look for a target_url parameter         Nsstring *query = [url query];         NSDictionary *params = [self parseURLParams:query];         // Check if target URL exists         Nsstring *applinkDataString = [params valueForKey:@"al_applink_data"];         if (applinkDataString) {             NSError *error = nil;             NSDictionary *applinkData =             [NSJsONSerialization JsONObjectWithData:[applinkDataString dataUsingEnCoding:NSUTF8StringEnCoding]                                             options:0                                               error:&error];             if (!error &&                 [applinkData isKindOfClass:[NSDictionary class]] &&                 applinkData[@"target_url"]) {                 Nsstring *targetURLString = applinkData[@"target_url"];                 // Show the incoming link in an alert                 // Your code to direct the user to the                 // appropriate flow within your app goes here                 [[[UIAlertVIEw alloc] initWithTitle:@"Received link:"                                             message:targetURLString                                            delegate:nil                                   cancelbuttonTitle:@"OK"                                   otherbuttonTitles:nil] show];             }         }     }];    return urlWasHandled;}// A function for parsing URL parameters- (NSDictionary*)parseURLParams:(Nsstring *)query {    NSArray *pairs = [query componentsSeparatedByString:@"&"];    NSMutableDictionary *params = [[NSMutableDictionary alloc] init];    for (Nsstring *pair in pairs) {        NSArray *kv = [pair componentsSeparatedByString:@"="];        Nsstring *val = [[kv objectAtIndex:1]                         stringByReplacingPercentEscapesUsingEnCoding:NSUTF8StringEnCoding];        [params setobject:val forKey:[kv objectAtIndex:0]];    }    return params;}

有没有人能够使这个工作？我还不清楚托管的App link如何工作以及放置它的位置(我假设在调用FBGraphObject openGraphObjectForPostWithType方法时它应该放在’url’参数中.

我真的不想创建一个网站来存储所有的网址并添加App link元标记(我必须通过应用程序完成所有这些,因为每个App link都将是动态的,并且对于生成它的每个用户都是唯一的来自应用程序).

请帮忙！

解决方法@H_403_29@ 在FB的Mingli的帮助下,我设法使用以下代码：

- (voID)sharetoOpenGraphCountdownInvite{    NSURL *url = [NSURL URLWithString:@"https://graph.facebook.com/oauth/access_token?grant_type=clIEnt_credentials&clIEnt_ID={insert your FB app ID here}&clIEnt_secret={insert clIEnt secret here}"];    Nsstring *fullToken = [Nsstring stringWithContentsOfURL:url enCoding:NSUTF8StringEnCoding error:nil];    NSArray *components = [fullToken componentsSeparatedByString:@"="];    FBAppAccesstoken = [components objectAtIndex:1];    NSDictionary *paramsForApplinksHost = [NSDictionary dictionaryWithObjectsAndKeys:                                           FBAppAccesstoken,@"{your app name}",@"{your app's custom url}",@"al:ios:url",@"al:ios:app_store_ID",@"al:ios:app_name",nil                                           ];    [FBRequestConnection startWithGraPHPath:@"/{FB app ID}/app_link_hosts"                                 parameters:paramsForApplinksHost                                 httpMethod:@"POST"                          completionHandler:^(                                              FBRequestConnection *connection,NSError *error                                              ) {                              ApplinksHostURL_ID = [result objectForKey:@"ID"]; // store this ID in an Nsstring                              [self postOGStoryWithCustomURL];                              if(error) NSLog(@"error = %@",error.description);                          }];}- (voID)postOGStoryWithCustomURL{    Nsstring *urlString = [Nsstring stringWithFormat:@"https://fb.me/%@/%@",ApplinksHostURL_ID,customURL];    UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[self pathForS3ObjectWithfilename:prevIEwImagefilename]]]];    // Create OG object    ID<FBGraphObject> object =    [FBGraphObject openGraphObjectForPostWithType:@"timeflyz:countdown_invite"                                            Title:eventBeingShared.eventname                                            image:image                                              url:urlString // fb.me app links hosted url here                                      description:@"{insert description here}"];    // Create an action    ID<FBOpenGraphAction> action = (ID<FBOpenGraphAction>)[FBGraphObject graphObject];    // link the object to the action    [action setobject:object forKey:@"countdown_invite"];    // Check if the Facebook app is installed and we can present the share dialog    FBOpenGraphActionParams *params = [[FBOpenGraphActionParams alloc] init];    params.action = action;    params.actionType = @"timeflyz:create";    // 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:@"timeflyz:create"                                     prevIEwPropertyname:@"countdown_invite"                                                 handler:^(FBAppCall *call,NSError *error) {                                                     if(error) {                                                         // An error occurred,we need to handle the error                                                         // See: https://developers.facebook.com/docs/ios/errors                                                         NSLog(@"Error publishing story: %@",error.description);                                                     } else {                                                         //                                                         NSLog(@"result %@",results);                                                         if([[results objectForKey:@"completionGesture"] isEqualToString:@"post"]) {                                                             NSLog(@"Posted successfully!");                                                             [[NSNotificationCenter defaultCenter] postNotificationname:@"showShareSuccessfullMessage" object:self userInfo:nil];                                                         } else                                                             NSLog(@"Something else happened - user dIDn't post");                                                     }                                                 }];    }

请注意,“customURL”是一个遵循模式“？variable1 = result1& variable2 = result2 …”的Nsstring.

总结

以上是内存溢出为你收集整理的使用App Links Hosting API从iOS应用程序在Facebook上共享链接全部内容，希望文章能够帮你解决使用App Links Hosting API从iOS应用程序在Facebook上共享链接所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。