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我已經將故事板的應用程序的初始視圖設置爲主視圖。我在應用程序委託該代碼,如果用戶沒有在已經簽署的應該加載登錄VC:如何在iOS5中使用故事板保存用戶登錄數據?
if (currentUser) {
// do stuff with the user
//use storybaord nibs
} else {
// show the signup or login screen
UIStoryboard *storyboard = self.window.rootViewController.storyboard;
self.window.rootViewController = [storyboard instantiateViewControllerWithIdentifier:@"loginVC"];
}
問題是我沒有邏輯currentUser
。這只是suedo代碼。我如何正確設置它?
這是我在實際登錄VC中用於登錄用戶的代碼。我將用戶名/密碼保存到NSUserDefaults
。
-(IBAction)loginButtonPressed:(id)sender{
ASIFormDataRequest *request = [[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"https://myapp.com/20111115/60b88126/login_user/"]]];
[request setPostValue:self.usernameTextField.text forKey:@"username"];
[request setPostValue:self.passwordTextField.text forKey:@"password"];
[request startSynchronous];
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:self.usernameTextField.text forKey:@"login"];
[userDefaults setObject:self.passwordTextField.text forKey:@"password"];
NSError *error = [request error];
NSString *responseString = nil;
if (!error) {
responseString = [request responseString];
} else {
responseString = @"Failed to connect to server, please check your WiFi or 3G connection.";
}
NSDictionary *responseDictionary = [responseString JSONValue];
NSString *loginProblems = [responseDictionary valueForKey:@"login_errors"];
if (![loginProblems isEqualToString:@""]) {
//Invalid login
} else {
[self performSegueWithIdentifier:@"login" sender:self];
}
}