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＆amp; App Link's documentation不够明确。甚至是App Links video from F8。
应用要求：
到目前为止的进展：
我正在使用以下代码根据FB developer's website under Publishing iOS SDK.
创建托管的应用链接（因为我只有移动内容）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 object
id<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 action
id<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 dialog
FBOpenGraphActionParams *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 dialog
if([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;
}
有没有人能够让这个工作？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操作，因为每个App Link都将是动态的，并且每个用户都是唯一的在app中生成它。）
请帮忙！
答案 0 :(得分：1)
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, @"access_token",
@"{your app name}", @"name",
@"{your app's custom url}", @"al:ios:url",
@"{app store ID}", @"al:ios:app_store_id",
@"{your app name}", @"al:ios:app_name",
@"{\"should_fallback\": false}", @"web",
nil
];
[FBRequestConnection startWithGraphPath:@"/{FB app ID}/app_link_hosts"
parameters:paramsForAppLinksHost
HTTPMethod:@"POST"
completionHandler:^(
FBRequestConnection *connection,
id result,
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, 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 {
// 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＆＃34; customURL＆＃34;是一个遵循模式的NSString＆＃34;？variable1 = result1＆amp; variable2 = result2 ...＆＃34;
答案 1 :(得分：1)
这适用于Graph v2.5和SDK 4.8。绝对不容易，没有记录。但感谢Tim For鼓舞人心。 我使用的是自定义图形对象，但我不知道它是如何使用默认图形对象的。 我也使用App Links主机，因为我没有网络应用程序。 我从Graph API Explorer获得了{app_access_token}，选择了您的应用，然后获取应用访问令牌
首先，我在Facebook开发者（您的Facebook应用程序）上创建了图形故事，动作和对象类型。确保您在info.plist中为您的应用程序设置了应用程序查询方案.LSApplicationQueriesSchemes应包含指向您的应用程序的方案，我将其称为{app_scheme}。
然后在我的iOS应用程序中，我为每个共享创建一个新链接。
- (void)createAppLinkHost:(void(^)(NSString* appLinkURL))success error:(void(^)(NSError* error))failure{
NSString *url = [NSString stringWithFormat:@"{app_scheme}://%li",self.object.identifier];
NSString *appAccessToken = {app_access_token};
NSString *iosLink = [NSString stringWithFormat:@"[{\"url\":\"%@\",\"app_name\":\"%@\",\"app_store_id\":%i},]",url,@"{app_name}",{app_store_id_int}];
NSDictionary *appLinkHostParams = @{@"access_token":appAccessToken,
@"name":@"{link name}",
@"web":@"{\"should_fallback\": false}",
@"ios":iosLink
};
FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc]initWithGraphPath:@"/{fb_appId}/app_link_hosts"
parameters:appLinkHostParams
tokenString:appAccessToken
version:@"v2.5"
HTTPMethod:@"POST"];
[request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
if (!error) {
NSString *appLinkHostId = [result objectForKey:@"id"];
NSString *urlString = [NSString stringWithFormat:@"https://fb.me/%@", appLinkHostId];
success(urlString);
}
else{
NSLog(@"--ERROR-- [FACEBOOK APP LINK HOST] %@",error);
failure(error);
}
}];
}
如果错误，请检查。 App Link主机的错误比其他Facebook SDK更有意义。图谱API资源管理器可用于了解您应发送的数据。
获得成功后，获取AppLinkHost并分享。
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"fbauth2://"]]){
[self createAppLinkHost:^(NSString *appLinkURL) {
SURL *imageURL = [NSURL URLWithString:self.activity.imageURL];;
FBSDKSharePhoto *photo = [FBSDKSharePhoto photoWithImageURL:imageURL userGenerated:NO];
//Custom objects needs to be set from facebook first.
//Set object properties
NSDictionary *properties = @{
@"og:type": @"{namespace}:{graph_object}",
@"og:title": @"title",
@"og:description": @"body",
@"og:image": @[photo],
@"og:url":appLinkURL,
@"fb:app_id":@"{fb_appId}",
@"{namespace}:{custom_property}":@(self.object.identifier), //optional
};
//Create GraphObject
FBSDKShareOpenGraphObject *object = [FBSDKShareOpenGraphObject objectWithProperties:properties];
//Create Action
FBSDKShareOpenGraphAction *action = [FBSDKShareOpenGraphAction actionWithType:@"{namespace}:{graph_action}" object:object key:@"{namespace}:{graph_object}"];
FBSDKShareOpenGraphContent *openGraphcontent = [[FBSDKShareOpenGraphContent alloc] init];
openGraphcontent.action = action;
openGraphcontent.previewPropertyName = @"{namespace}:{graph_object}";
[FBSDKShareDialog showFromViewController:self withContent:openGraphcontent delegate:self];
} error:^(NSError *error) {}];
}
答案 2 :(得分：0)
我没有足够的代表发表评论，但如果您仍然被卡住，请查看此答案：