Facebook sdk贴在墙上的iPhone应用程序 [英] Facebook sdk post on wall on iPhone app
本文介绍了Facebook sdk贴在墙上的iPhone应用程序的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我安装SDK和链接框架
登录正常工作。以下是代码：
- （IBAction）loginButtonPressed：（id）sender
{
NSLog（@ loginButtonPressed：called）;
AppDelegate * appdel = [[UIApplication sharedApplication] delegate];
appdel.facebookSession = [[FBSession alloc] init];
[appdel.facebookSession openWithCompletionHandler：^（FBSession * session，
FBSessionState status，
NSError * error）
{
//
}];
}
但是，我在用户墙上发布消息有问题。这是代码：
- （IBAction）likeButtonPressed：（id）sender
{
NSLog（@ likeButtonPressed：called）;
//通过Graph API向用户的feedm发布状态更新，并显示带有结果或错误的警报视图
//。
NSString * message = @test message;
NSDictionary * params = [NSDictionary dictionaryWithObject：message forKey：@message];
//使用FBRequest上的startWithhelper static来创建和启动请求，
//指定的完成处理程序。
[FBRequest startWithGraphPath：@me / feed
参数：params
HTTPMethod：@POST
completionHandler：^（FBRequestConnection * connection，id result，NSError * error） {
[self showAlert：message result：result error：error];
}];
}
请帮助我。我的代码怎么了？或者我应该添加一些登录请求的权限？
解决方案
这段代码为我工作。
首先我们必须
#import< FBiOSSDK / FacebookSDK.h>
然后
@property（strong，nonatomic）FBRequestConnection * requestConnection;
当然不要忘记合成：
@synthesize requestConnection;
代码本身：
- （IBAction）likeButtonPressed：（id）sender
{
NSLog（@likeButtonPressed：called）;
// FBSample logic
//检查我们是否已经打开了一个会话。
if（FBSession.activeSession.isOpen）
{
//登录与发送按钮集成 - 所以如果打开，我们发送
[self postOnWall];
}
{
[FBSession sessionOpenWithPermissions：[NSArray arrayWithObjects：@publish_stream，nil]
completionHandler：
^（FBSession *
FBSessionState状态，
NSError *错误）
{
//如果登录失败的任何原因，我们警告
如果（错误）
{
NSLog（@login failed）;
UIAlertView * alert = [[UIAlertView alloc] initWithTitle：@Error
message：error.localizedDescription
delegate：nil
cancelButtonTitle：@OK
otherButtonTitles ：零];
[alert show];
//如果否则我们检查会话是否打开，另一个
//对FB_ISSESSIONOPENWITHSTATE帮助宏将是检查会话对象的isOpen
//属性;这些宏是有用的，但是更多的
// FBSession对象的详细状态检查
}
else if（FB_ISSESSIONOPENWITHSTATE（status））
{
NSLog（@ 发墙贴请求...）;
//发送我们的请求，如果我们成功登录
[self postOnWall];
}
}];
};
}
- （void）postOnWall
{
NSNumber * testMessageIndex = [[NSNumber alloc] init];
if（[[NSUserDefaults standardUserDefaults] objectForKey：@testMessageIndex] == nil）
{
testMessageIndex = [NSNumber numberWithInt：100];
}
else
{
testMessageIndex = [[NSUserDefaults standardUserDefaults] objectForKey：@testMessageIndex];
};
testMessageIndex = [NSNumber numberWithInt：[testMessageIndex intValue] +1];
[[NSUserDefaults standardUserDefaults] setObject：testMessageIndex forKey：@testMessageIndex];
[[NSUserDefaults standardUserDefaults] synchronize];
//创建连接对象
FBRequestConnection * newConnection = [[FBRequestConnection alloc] init];
//创建处理程序块来处理fbid的配置文件请求的结果
FBRequestHandler handler =
^（FBRequestConnection * connection，id result，NSError * error）{
//输出请求的结果
[self requestCompleted：connection forFbID：@meresult：result error：error];
};
//创建请求对象，使用fbid作为图形路径
//作为替代的请求* FBRequest类的静态方法可以
//用于获取常见请求，例如/ me和/ me / friends
NSString * messageString = [NSString stringWithFormat：@wk test message％i，[testMessageIndex intValue]];
FBRequest * request = [[FBRequest alloc] initWithSession：FBSession.activeSession graphPath：@me / feed参数：[NSDictionary dictionaryWithObject：messageString forKey：@message] HTTPMethod：@POST];
//如果添加了多个请求，则向连接对象添加请求
//连接对象将以请求的形式组合请求;无论是
//不是请求是批次还是单例，处理程序行为是相同的，
//允许应用程序在单个或多个
/ /请求发生
[newConnection addRequest：request completionHandler：handler];
//如果有一个未完成的连接，只需取消
[self.requestConnection cancel];
//跟踪我们的连接，并启动它
self.requestConnection = newConnection;
[newConnection start];
}
// FBSample logic
//报告任何结果。针对我们所做的每个请求调用一次。
- （void）requestCompleted :( FBRequestConnection *）连接
forFbID：fbID
结果：（id）结果
错误：（NSError *）错误
{
NSLog（@请求完成）;
//不是我们正在寻找的完成...
if（self.requestConnection&&
connection！= self.requestConnection）
{
NSLog（@不是我们要找的完成）;
返回;
}
//清理这个，为后代
self.requestConnection = nil;
if（error）
{
NSLog（@error）;
UIAlertView * alert = [[UIAlertView alloc] initWithTitle：@errormessage：error.localizedDescription delegate：nil cancelButtonTitle：@OKotherButtonTitles：nil];
//错误包含有关请求失败的原因的详细信息
[alert show];
}
else
{
NSLog（@ok）;
};
}
I have a problem with implementing Facebook posting on wall in my iPhone application. I installed SDK and linked framework login is working fine. here's the code:
-(IBAction)loginButtonPressed:(id)sender
{
NSLog(@"loginButtonPressed: called");
AppDelegate *appdel=[[UIApplication sharedApplication] delegate];
appdel.facebookSession=[[FBSession alloc] init];
[appdel.facebookSession openWithCompletionHandler:^(FBSession *session,
FBSessionState status,
NSError *error)
{
//
}];
}
But I have a problem with posting message on user's wall. Here's the code:
-(IBAction)likeButtonPressed:(id)sender
{
NSLog(@"likeButtonPressed: called");
// Post a status update to the user's feedm via the Graph API, and display an alert view
// with the results or an error.
NSString *message = @"test message";
NSDictionary *params = [NSDictionary dictionaryWithObject:message forKey:@"message"];
// use the "startWith" helper static on FBRequest to both create and start a request, with
// a specified completion handler.
[FBRequest startWithGraphPath:@"me/feed"
parameters:params
HTTPMethod:@"POST"
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
[self showAlert:message result:result error:error];
}];
}
Help me please. What's wrong with my code? Or should I add some permissions to login request?
解决方案
this code worked for me. First we must
#import <FBiOSSDK/FacebookSDK.h>
then
@property (strong, nonatomic) FBRequestConnection *requestConnection;
and of course do not forget to synthesize:
@synthesize requestConnection;
the code itself:
-(IBAction)likeButtonPressed:(id)sender
{
NSLog(@"likeButtonPressed: called");
// FBSample logic
// Check to see whether we have already opened a session.
if (FBSession.activeSession.isOpen)
{
// login is integrated with the send button -- so if open, we send
[self postOnWall];
}
else
{
[FBSession sessionOpenWithPermissions:[NSArray arrayWithObjects:@"publish_stream", nil]
completionHandler:
^(FBSession *session,
FBSessionState status,
NSError *error)
{
// if login fails for any reason, we alert
if (error)
{
NSLog(@" login failed");
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
// if otherwise we check to see if the session is open, an alternative to
// to the FB_ISSESSIONOPENWITHSTATE helper-macro would be to check the isOpen
// property of the session object; the macros are useful, however, for more
// detailed state checking for FBSession objects
}
else if (FB_ISSESSIONOPENWITHSTATE(status))
{
NSLog(@" sending post on wall request...");
// send our requests if we successfully logged in
[self postOnWall];
}
}];
};
}
- (void)postOnWall
{
NSNumber *testMessageIndex=[[NSNumber alloc] init];
if ([[NSUserDefaults standardUserDefaults] objectForKey:@"testMessageIndex"]==nil)
{
testMessageIndex=[NSNumber numberWithInt:100];
}
else
{
testMessageIndex=[[NSUserDefaults standardUserDefaults] objectForKey:@"testMessageIndex"];
};
testMessageIndex=[NSNumber numberWithInt:[testMessageIndex intValue]+1];
[[NSUserDefaults standardUserDefaults] setObject:testMessageIndex forKey:@"testMessageIndex"];
[[NSUserDefaults standardUserDefaults] synchronize];
// create the connection object
FBRequestConnection *newConnection = [[FBRequestConnection alloc] init];
// create a handler block to handle the results of the request for fbid's profile
FBRequestHandler handler =
^(FBRequestConnection *connection, id result, NSError *error) {
// output the results of the request
[self requestCompleted:connection forFbID:@"me" result:result error:error];
};
// create the request object, using the fbid as the graph path
// as an alternative the request* static methods of the FBRequest class could
// be used to fetch common requests, such as /me and /me/friends
NSString *messageString=[NSString stringWithFormat:@"wk test message %i", [testMessageIndex intValue]];
FBRequest *request=[[FBRequest alloc] initWithSession:FBSession.activeSession graphPath:@"me/feed" parameters:[NSDictionary dictionaryWithObject:messageString forKey:@"message"] HTTPMethod:@"POST"];
// add the request to the connection object, if more than one request is added
// the connection object will compose the requests as a batch request; whether or
// not the request is a batch or a singleton, the handler behavior is the same,
// allowing the application to be dynamic in regards to whether a single or multiple
// requests are occuring
[newConnection addRequest:request completionHandler:handler];
// if there's an outstanding connection, just cancel
[self.requestConnection cancel];
// keep track of our connection, and start it
self.requestConnection = newConnection;
[newConnection start];
}
// FBSample logic
// Report any results. Invoked once for each request we make.
- (void)requestCompleted:(FBRequestConnection *)connection
forFbID:fbID
result:(id)result
error:(NSError *)error
{
NSLog(@"request completed");
// not the completion we were looking for...
if (self.requestConnection &&
connection != self.requestConnection)
{
NSLog(@" not the completion we are looking for");
return;
}
// clean this up, for posterity
self.requestConnection = nil;
if (error)
{
NSLog(@" error");
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"error" message:error.localizedDescription delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
// error contains details about why the request failed
[alert show];
}
else
{
NSLog(@" ok");
};
}
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