使用Facebook iOS SDK，我如何获得所有好友的NSArray并向他们发送邀请到我的应用程序?我特别寻找图形路径来获得所有的朋友。
使用Facebook SDK 3.0，您可以这样做:
FBRequest* friendsRequest = [FBRequest requestForMyFriends];
[friendsRequest startWithCompletionHandler: ^(FBRequestConnection *connection,
NSDictionary* result,
NSError *error) {
NSArray* friends = [result objectForKey:@"data"];
NSLog(@"Found: %lu friends", (unsigned long)friends.count);
for (NSDictionary<FBGraphUser>* friend in friends) {
NSLog(@"I have a friend named %@ with id %@", friend.name, friend.objectID);
}
}];
这里有一个更完整的解决方案:
头文件:
@interface myDelegate : NSObject <UIApplicationDelegate, FBSessionDelegate, FBRequestDelegate> {
Facebook *facebook;
UIWindow *window;
UINavigationController *navigationController;
NSArray *items; // to get facebook friends
}
@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet UINavigationController *navigationController;
@property (nonatomic, retain) Facebook *facebook;
@property (nonatomic, retain) NSArray *items;
@end
然后在你的实现中:
@implementation myDelegate
@synthesize window;
@synthesize navigationController;
@synthesize facebook;
@synthesize items;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
...
facebook = [[Facebook alloc] initWithAppId:@"YOUR_APP_ID_FROM_FACEBOOK" andDelegate:self];
[facebook requestWithGraphPath:@"me/friends" andDelegate:self];
return YES;
}
那么您至少需要以下委托协议方法:
- (void)request:(FBRequest *)request didLoad:(id)result {
//ok so it's a dictionary with one element (key="data"), which is an array of dictionaries, each with "name" and "id" keys
items = [[(NSDictionary *)result objectForKey:@"data"]retain];
for (int i=0; i<[items count]; i++) {
NSDictionary *friend = [items objectAtIndex:i];
long long fbid = [[friend objectForKey:@"id"]longLongValue];
NSString *name = [friend objectForKey:@"name"];
NSLog(@"id: %lld - Name: %@", fbid, name);
}
}
获取好友列表，可以使用
https://graph.facebook.com/me/friends[facebook requestWithGraphPath:@"me/friends"
andParams:nil
andDelegate:self];
要了解更多关于所有可能的API，请阅读
https://developers.facebook.com/docs/reference/api/也许这能帮上忙
[FBRequestConnection startForMyFriendsWithCompletionHandler:
^(FBRequestConnection *connection, id<FBGraphUser> friends, NSError *error)
{
if(!error){
NSLog(@"results = %@", friends);
}
}
];
使用下面的函数异步获取存储在NSArray中的用户好友:
- (void)fetchFriends:(void(^)(NSArray *friends))callback
{
[FBRequestConnection startForMyFriendsWithCompletionHandler:^(FBRequestConnection *connection, id response, NSError *error) {
NSMutableArray *friends = [NSMutableArray new];
if (!error) {
[friends addObjectsFromArray:(NSArray*)[response data]];
}
callback(friends);
}];
}
在您的代码中，您可以这样使用它:
[self fetchFriends:^(NSArray *friends) {
NSLog(@"%@", friends);
}];
//在头文件中声明一个数组，它将保存所有好友的列表-NSMutableArray * m_allFriends;
//只分配和初始化数组一次m_allFriends = [[NSMutableArray alloc] init];
与FB SDK 3.0和API版本2.0以上，你需要调用下面的函数(图形API与我/朋友)，以获得使用相同应用程序的FB朋友列表。
//获取使用该应用程序的好友
-(void) getMineFriends
{
[FBRequestConnection startWithGraphPath:@"me/friends"
parameters:nil
HTTPMethod:@"GET"
completionHandler:^(
FBRequestConnection *connection,
id result,
NSError *error
) {
NSLog(@"me/friends result=%@",result);
NSLog(@"me/friends error = %@", error.description);
NSArray *friendList = [result objectForKey:@"data"];
[m_allFriends addObjectsFromArray: friendList];
}];
}
备注:1)上述查询返回的好友数量默认限制为25。2)如果下一个链接出现在结果中，这意味着有更多的朋友，你将在下一个查询中获取，等等。3)或者你可以改变限制(减少限制，超过限制从25)，并在参数传递。
////////////////////////////////////////////////////////////////////////
非应用好友-
//m_invitableFriends -全局数组，用于保存可邀请好友列表
也得到非应用程序的朋友，你需要使用(/me/invitable_friends)如下-
- (void) getAllInvitableFriends
{
NSMutableArray *tempFriendsList = [[NSMutableArray alloc] init];
NSDictionary *limitParam = [NSDictionary dictionaryWithObjectsAndKeys:@"100", @"limit", nil];
[self getAllInvitableFriendsFromFB:limitParam addInList:tempFriendsList];
}
- (void) getAllInvitableFriendsFromFB:(NSDictionary*)parameters
addInList:(NSMutableArray *)tempFriendsList
{
[FBRequestConnection startWithGraphPath:@"/me/invitable_friends"
parameters:parameters
HTTPMethod:@"GET"
completionHandler:^(
FBRequestConnection *connection,
id result,
NSError *error
) {
NSLog(@"error=%@",error);
NSLog(@"result=%@",result);
NSArray *friendArray = [result objectForKey:@"data"];
[tempFriendsList addObjectsFromArray:friendArray];
NSDictionary *paging = [result objectForKey:@"paging"];
NSString *next = nil;
next = [paging objectForKey:@"next"];
if(next != nil)
{
NSDictionary *cursor = [paging objectForKey:@"cursors"];
NSString *after = [cursor objectForKey:@"after"];
//NSString *before = [cursor objectForKey:@"before"];
NSDictionary *limitParam = [NSDictionary dictionaryWithObjectsAndKeys:
@"100", @"limit", after, @"after"
, nil
];
[self getAllInvitableFriendsFromFB:limitParam addInList:tempFriendsList];
}
else
{
[self replaceGlobalListWithRecentData:tempFriendsList];
}
}];
}
- (void) replaceGlobalListWithRecentData:(NSMutableArray *)tempFriendsList
{
// replace global from received list
[m_invitableFriends removeAllObjects];
[m_invitableFriends addObjectsFromArray:tempFriendsList];
//NSLog(@"friendsList = %d", [m_invitableFriends count]);
[tempFriendsList release];
}
与facebook SDK 3.2 or above，我们有一个设施的FBWebDialogs类，打开一个视图，其中已经包含的朋友(s)列表。Pick the friends和send invitations to all of them。
这里我已经一步一步简要地描述了分辨率
(void)getFriendsListWithCompleteBlock:(void (^)(NSArray *, NSString *))completed{
if (!FBSession.activeSession.isOpen)
{
NSLog(@"permissions::%@",FBSession.activeSession.permissions);
// if the session is closed, then we open it here, and establish a handler for state changes
[FBSession openActiveSessionWithReadPermissions:@[@"basic_info", @"user_friends"]
allowLoginUI:YES
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
if (error)
{
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alertView show];
}
else if (session.isOpen)
{
[self showWithStatus:@""];
FBRequest *friendRequest = [FBRequest requestForGraphPath:@"me/friends?fields=name,picture,gender"];
[friendRequest startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
NSArray *data = [result objectForKey:@"data"];
NSMutableArray *friendsList = [[NSMutableArray alloc] init];
for (FBGraphObject<FBGraphUser> *friend in data)
{
//NSLog(@"friend:%@", friend);
NSDictionary *picture = [friend objectForKey:@"picture"];
NSDictionary *pictureData = [picture objectForKey:@"data"];
//NSLog(@"picture:%@", picture);
FBData *fb = [[FBData alloc]
initWithData:(NSString*)[friend objectForKey:@"name"]
userID:(NSInteger)[[friend objectForKey:@"id"] integerValue]
gender:(NSString*)[friend objectForKey:@"gender"]
photoURL:(NSString*)[pictureData objectForKey:@"url"]
photo:(UIImage*)nil
isPhotoDownloaded:(BOOL)NO];
[friendsList addObject:fb];
}
[self dismissStatus];
if (completed) {
completed(friendsList,@"I got it");
}
}];
}
}];
}
}
这是一个Swift版本。
var friendsRequest : FBRequest = FBRequest.requestForMyFriends()
friendsRequest.startWithCompletionHandler{(connection:FBRequestConnection!, result:AnyObject!, error:NSError!) -> Void in
let resultdict = result as NSDictionary
let friends : NSArray = resultdict.objectForKey("data") as NSArray
println("Found: (friends.count) friends")
for friend in friends {
let id = friend.objectForKey("id") as String
println("I have a friend named (friend.name) with id " + id)
}
}
邀请非应用程序好友-
您将获得邀请令牌与我/invitable_friends图形api返回的朋友列表。您可以使用这些邀请令牌与fbwebdialog发送邀请给朋友，如下所示
- (void) openFacebookFeedDialogForFriend:(NSString *)userInviteTokens {
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
userInviteTokens, @"to",
nil, @"object_id",
@"send", @"action_type",
actionLinksStr, @"actions",
nil];
[FBWebDialogs
presentRequestsDialogModallyWithSession:nil
message:@"Hi friend, I am playing game. Come and play this awesome game with me."
title:nil
parameters:params
handler:^(
FBWebDialogResult result,
NSURL *url,
NSError *error)
{
if (error) {
// Error launching the dialog or sending the request.
NSLog(@"Error sending request : %@", error.description);
}
else
{
if (result == FBWebDialogResultDialogNotCompleted)
{
// User clicked the "x" icon
NSLog(@"User canceled request.");
NSLog(@"Friend post dialog not complete, error: %@", error.description);
}
else
{
NSDictionary *resultParams = [g_mainApp->m_appDelegate parseURLParams:[url query]];
if (![resultParams valueForKey:@"request"])
{
// User clicked the Cancel button
NSLog(@"User canceled request.");
}
else
{
NSString *requestID = [resultParams valueForKey:@"request"];
// here you will get the fb id of the friend you invited,
// you can use this id to reward the sender when receiver accepts the request
NSLog(@"Feed post ID: %@", requestID);
NSLog(@"Friend post dialog complete: %@", url);
}
}
}
}];
}
-(void)getFBFriends{
NSDictionary *queryParam =
[NSDictionary dictionaryWithObjectsAndKeys:@"SELECT uid, sex,name,hometown_location,birthday, pic_square,pic_big FROM user WHERE uid = me()"
@"OR uid IN (SELECT uid2 FROM friend WHERE uid1 = me())", @"q", nil];
// Make the API request that uses FQL
[FBRequestConnection startWithGraphPath:@"/fql"
parameters:queryParam
HTTPMethod:@"GET"
completionHandler:^(FBRequestConnection *connection,
id result,
NSError *error) {
if (error) {
NSLog(@"Error: %@", [error localizedDescription]);
} else {
NSDictionary *data=result;
//NSLog(@"the returned data of user is %@",data);
NSArray *dataArray=[data objectForKey:@"data"];
//dataArray contains first user as self user and your friend list
}
}];
}