Twitter iOS流媒体API:没有收到数据
我试图修改Apple使用Twitter API的示例代码,以便我可以使用流媒体API来过滤推文。我试图实现该方法提出在回答这个问题:Twitter iOS流媒体API:没有收到数据
Does TWRequest work for the twitter streaming api?
我已经创建的建议已签署的NSURLRequest和NSURLConnection的对象,并设置连接对象的委托。选择一个有效的Twitter帐户并用于签署该网址。问题是委托连接:didReceiveData:方法永远不会被调用。
这里是我的代码:
@implementation Twitter
-(id)init{
if (self=[super init]) {
NSLog(@"Twitter init");
// Tell the notification centre to inform the app if the twitter account changes
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(twitterAccountChanged)
name:ACAccountStoreDidChangeNotification object:nil];
// Create an account store object.
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
// Create an account type that ensures Twitter accounts are retrieved.
ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
// Request access from the user to use their Twitter accounts.
[accountStore requestAccessToAccountsWithType:accountType withCompletionHandler:^(BOOL granted, NSError *error) {
if(granted) {
NSLog(@"Twitter: Access to twitter accounts granted");
// Get the list of Twitter accounts.
NSArray *accountsArray = [accountStore accountsWithAccountType:accountType];
// Pick the twitter account to use
if ([accountsArray count] > 0) {
// Grab the initial Twitter account to tweet from.
ACAccount *twitterAccount = [accountsArray objectAtIndex:0];
// This is for a status filter
NSURL *url=[NSURL URLWithString:@"https://stream.twitter.com/1/statuses/filter.json"];
// Create the parameters dictionary
NSDictionary *dictionary=[NSDictionary dictionaryWithObjectsAndKeys:@"twitter", @"track", nil];
// Create TWRequest object
TWRequest *req=[[TWRequest alloc] initWithURL:url parameters:dictionary requestMethod:TWRequestMethodPOST];
// Set the account
[req setAccount:twitterAccount];
// Get a signed URL request
NSURLRequest *signedRequest=[req signedURLRequest];
// Initate the connection
[NSURLConnection connectionWithRequest:signedRequest delegate:self];
} else {
NSLog(@"Twitter: No twitter accounts to access");
}
} else {
NSLog(@"Twitter: Access to twitter accounts denied");
}
}];
return self;
}
return nil;
}
-(void)twitterAccountChanged{
NSLog(@"Twitter twitterAccountChanged");
}
-(void) connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
NSLog(@"data received");
}
从程序的输出是:
2012-07-24 09:50:03.668 TwitterAPITest[36722:10403] Twitter init
2012-07-24 09:50:03.836 TwitterAPITest[36722:11d03] Twitter: Access to twitter accounts granted
正如你所看到的,一切似乎都工作正常,唯一的问题是,委托方法是永远叫,我目前不知道为什么。
任何帮助,将不胜感激......
迈克
我花了一些时间来得到这个启动和运行,所以我想我奥特发布我为别人的代码。在我的情况下,我试图让推特靠近某个位置,所以你会看到我使用了一个locations
参数和一个位于我范围内的位置结构。你可以添加你想要的参数字典的任何参数。
另外请注意,这是裸露的骨头,你会想要做的事情,如通知用户,没有找到一个帐户,并允许用户选择他们想要使用的Twitter帐户,如果有多个帐户存在。
Happy Streaming!
//First, we need to obtain the account instance for the user's Twitter account
ACAccountStore *store = [[ACAccountStore alloc] init];
ACAccountType *twitterAccountType = [store accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
// Request permission from the user to access the available Twitter accounts
[store requestAccessToAccountsWithType:twitterAccountType
withCompletionHandler:^(BOOL granted, NSError *error) {
if (!granted) {
// The user rejected your request
NSLog(@"User rejected access to the account.");
}
else {
// Grab the available accounts
NSArray *twitterAccounts = [store accountsWithAccountType:twitterAccountType];
if ([twitterAccounts count] > 0) {
// Use the first account for simplicity
ACAccount *account = [twitterAccounts objectAtIndex:0];
NSMutableDictionary *params = [[NSMutableDictionary alloc] init];
[params setObject:@"1" forKey:@"include_entities"];
[params setObject:location forKey:@"locations"];
[params setObject:@"true" forKey:@"stall_warnings"];
//set any other criteria to track
//params setObject:@"words, to, track" [email protected]"track"];
// The endpoint that we wish to call
NSURL *url = [NSURL URLWithString:@"https://stream.twitter.com/1.1/statuses/filter.json"];
// Build the request with our parameter
TWRequest *request = [[TWRequest alloc] initWithURL:url
parameters:params
requestMethod:TWRequestMethodPOST];
// Attach the account object to this request
[request setAccount:account];
NSURLRequest *signedReq = request.signedURLRequest;
// make the connection, ensuring that it is made on the main runloop
self.twitterConnection = [[NSURLConnection alloc] initWithRequest:signedReq delegate:self startImmediately: NO];
[self.twitterConnection scheduleInRunLoop:[NSRunLoop mainRunLoop]
forMode:NSDefaultRunLoopMode];
[self.twitterConnection start];
} // if ([twitterAccounts count] > 0)
} // if (granted)
}];
你节省了我的一天:) +1 – 2013-02-11 16:54:14
@wbarksdale我得到需要身份验证的resposne你对此有想法。因为我们正在使用ACAccount进行访问,所以它应该可以工作。任何帮助将不胜感激。谢谢。 – 2016-01-25 11:27:25
自发布以来,我得到了这个工作**没有**使用TWRequest对象。相反,我使用NSURLRequest/Connection对象,从流API接收JSON,并解析出传入的推文文本。仍然很高兴知道是否有人已经获得流媒体API与TWRequest虽然... – Michael 2012-07-24 05:26:29
你可以发布一些代码呢?谢谢。 – EvilPenguin 2012-08-08 22:42:16
问题在于你的NSURLConnection是从主运行循环启动的,所以线程在你的任何代表被调用之前退出。我在下面发布了一些代码。 – wbarksdale 2012-09-18 21:33:16