Question

我在我的iOS应用程序中集成了CocoaLibSpotify，我正在开发用户登录。第一次显示登录控制器，如果登录成功，则会生成用户凭据并将其存储在NSDefaults中，正如Rich Able在SPLoginViewController to remember credentials中所述：

代码是下一个：

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSMutableDictionary *storedCredentials = [defaults valueForKey:@"SpotifyUsers"];

if (storedCredentials == nil)
    [self performSelector:@selector(showLogin) withObject:nil afterDelay:0.0];
else
{
    NSString *u = [storedCredentials objectForKey:@"LastUser"] ;
    [[SPSession sharedSession] attemptLoginWithUserName:u existingCredential:    [storedCredentials objectForKey:u]];
}

-(void)session:(SPSession *)aSession didGenerateLoginCredentials:(NSString *)credential     forUserName:(NSString *)userName
{
    NSLog(@"stored credentials");
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSMutableDictionary *storedCredentials = [[defaults valueForKey:@"SpotifyUsers"] mutableCopy];

    if (storedCredentials == nil)
        storedCredentials = [NSMutableDictionary dictionary];

    [storedCredentials setValue:credential forKey:userName];
    [storedCredentials setValue:userName forKey:@"LastUser"];
    [defaults setValue:storedCredentials forKey:@"SpotifyUsers"];
    [defaults synchronize];
}

但是，当我关闭应用程序并再次重新启动时，我尝试使用存储的凭据进行登录，但登录始终失败。

这是否可以实现，或者当我重新启动应用程序时，会话变为无效，我需要让用户再次登录？

提前致谢！

尝试使用存储的凭据登录CocoaLibSpotify失败

0 个答案: