重定向到Twitter登录的设置屏幕 [英] Redirect to Settings Screen for Twitter Login

问题描述

在Twitter中，如果用户已在设置屏幕中的Twitter帐户中登录它将允许发布。否则它将显示警报为没有Twitter帐户，带有2个选项 设置和取消。如果点击取消，它将关闭提醒并拒绝发布到Twitter。如果点击设置，则不会重定向到设置屏幕。
我还用过

In Twitter ,if User has Logged In in the Twitter Account in Settings Screen It will allow to post.Or Else it will display a Alert as "No Twitter Accounts" with 2 Options "Settings" and "Cancel". If Cancel is Tapped it will close alert and reject post to twitter. And if Settings is Tapped it is not redirecting to Settings Screen. Also i used

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=TWITTER"]];

但是没有运气。据我检查，所有人都说从iOS 5.1它不会工作。但我看到一些应用程序仍然重定向到iOS7中的设置屏幕。是否可以在iOS7中重定向。
先谢谢。

But No Luck. As far as i checked all are saying as from iOS 5.1 it wont work.But i see some apps still redirecting to settings screen in iOS7. Is it possible to redirect in iOS7. Thanks in Advance.

推荐答案

您可以在登录按钮的操作中使用以下代码：

You can use below code in your login button's action:

if ([TWTweetComposeViewController canSendTweet])
{
    //yes user is logged in
    accountStore = [[ACAccountStore alloc] init];
    ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];

    // Request access from the user to use their Twitter accounts.
    [accountStore requestAccessToAccountsWithType:accountType withCompletionHandler:^(BOOL granted, NSError *error)
     {
         // Did user allow us access?
         if (granted == YES)
         {
             // Populate array with all available Twitter accounts
             NSArray *arrayOfAccounts = [accountStore accountsWithAccountType:accountType];

             ACAccount *acct = [arrayOfAccounts objectAtIndex:0];

             // Set the cell text to the username of the twitter account
             NSString *userID = [[acct valueForKey:@"properties"] valueForKey:@"user_id"];
             TwitterIdStr = [[NSString alloc] initWithString:userID];
             FbIdStr = [[NSString alloc] init];
             NSLog(@"%@",userID);
             NSString *networkCheck = [[NSUserDefaults standardUserDefaults] valueForKey:@"isNetWorkAvailable"];
             if ([networkCheck isEqualToString:@"NotConnected"])
             {
                 // not connected
                 dispatch_async(dispatch_get_main_queue(), ^{
                     // Display/dismiss your alert
                     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No network connection" message:@"You must be connected to the internet to proceed." delegate:nil cancelButtonTitle:@"OK"otherButtonTitles:nil];
                     [alert show];
                 });

             } else
             {
                 fNameStr = [[NSString alloc] init];
                 lNameStr = [[NSString alloc] init];
                 emailStr = [[NSString alloc] init];

                 [self startProgressViewAgain];
             }

         }
     }];
}
else
{
    //show tweeet login prompt to user to login
    TWTweetComposeViewController *viewController = [[TWTweetComposeViewController alloc] init];

    //hide the tweet screen
    viewController.view.hidden = YES;

    //fire tweetComposeView to show "No Twitter Accounts" alert view on iOS5.1
    viewController.completionHandler = ^(TWTweetComposeViewControllerResult result) {
        if (result == TWTweetComposeViewControllerResultCancelled) {
            [self dismissModalViewControllerAnimated:NO];
        }
    };
    [self presentModalViewController:viewController animated:NO];

    //hide the keyboard
    [viewController.view endEditing:YES];
}

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