How to display Salesforce login screen on my existing iOS native application?

Question

I need to integrate Salesforce iOS native library in my iOS native application and I have to show salesforce login screen and flow as mentioned below:

I have a HOME screen in my iOS native application.
From there I have to navigate to Salesforce login screen.
User will enter credentials and Salesforce will validate it.
Once logged in success then it will back to my HOME screen with token/sessionID.
That token/sessionID I will use internally in my application.

To achieve this I have integrated "SalesforceMobileSDK-iOS-Distribution" from below link https://github.com/forcedotcom/SalesforceMobileSDK-iOS-Distribution in my application. But exactly I don't know from where to and how to start? which class will give me login screen of Salesforce. I tried something like

[SFUserAccountManager sharedInstance].oauthClientId = strClientID;
[SFUserAccountManager sharedInstance].oauthCompletionUrl = strCallbackURI; 
[SFUserAccountManager sharedInstance].scopes = [NSSet setWithObjects:@"api",@"web", nil];

and

[SalesforceSDKManager sharedManager].connectedAppId = strClientID;
[SalesforceSDKManager sharedManager].connectedAppCallbackUri = strCallbackURI;   
[SalesforceSDKManager sharedManager].authScopes = @[@"web", @"api"]; 
[[SalesforceSDKManager sharedManager] launch];

I have connected app information such as Client ID, Secret code and Redirect URI. How can I proceed?

If I use zkSforce library from this link https://github.com/superfell/zkSforce Does it achieve my requirement? Please help me. Thanks in advance.

Ganesh G Ganesh G · Accepted Answer · 2014-12-22T21:00:25

Finally I achieved it and the good answer for this question is

Download "SalesforceMobileSDK-iOS-Distribution" from below link https://github.com/forcedotcom/SalesforceMobileSDK-iOS-Distribution .
Extract all the "-Release.zip" files and add those to your application.
Set Header Search path for all libraries as "$(SRCROOT)/your app name/your library name" and choose "recursive".
Set Other linker flags such as "-ObjC" and "-all_load".
Import "SFUserAccountManager.h", "SFAuthenticationManager.h" and "SFIdentityData.h" files.

Add below code snippet to your login action

[SFUserAccountManager sharedInstance].oauthClientId = strClientID;

[SFUserAccountManager sharedInstance].oauthCompletionUrl = strCallbackURI;

// [SFUserAccountManager sharedInstance].scopes = [NSSet setWithObjects:@"web", @"api", nil];

[[SFAuthenticationManager sharedManager] addDelegate:self];

[[SFAuthenticationManager sharedManager]
 loginWithCompletion:(SFOAuthFlowSuccessCallbackBlock)^(SFOAuthInfo *info) {
     NSLog(@"Authentication Done");

     SFIdentityData *claims = [SFAuthenticationManager sharedManager].idCoordinator.idData;
     NSLog(@"claims = %@",claims);

     NSLog(@"accessToken = %@", [SFAuthenticationManager sharedManager].coordinator.credentials.accessToken);

 }
 failure:(SFOAuthFlowFailureCallbackBlock)^(SFOAuthInfo *info, NSError *error) {
     NSLog(@"Authentication Failed");
 // handle error hare.
 }
 ];

#pragma mark - SFAuthenticationManager

- (void)authManager:(SFAuthenticationManager *)manager willDisplayAuthWebView:(UIWebView *)view{

 }

- (void)authManagerDidFail:(SFAuthenticationManager *)manager error:(NSError*)error info:(SFOAuthInfo *)info{
}

hope it would helpful to you.

Note: According to me the "Call back URI" should not start with either "http" or "https".

How to display Salesforce login screen on my existing iOS native application?

3 Answers