是否可以通过设备设置（例如，facebook应用程序在iOS中的操作）登录到我们的应用程序

Question

I need a confirmation that is it possible to login to my own app by giving the credentials in the settings of the device.

flow is like: settings -> tap onto my app -> enter username, password and version -> tap home button ->tap on my app -> then it should show the homescreen instead login screen.

For ex: The Facebook app works same as we can enter the credentials and signedin in the device settings and when we trap on to the facebook app it automatically sign in.

I need confirmation whether its possible or not

Answer 1

It is possible, but not a good idea.

However here are the implementation steps..

Implement an iOS Settings Bundle with two text feilds such as user name and password.

In AppDelegate didFinishLaunchingWithOptions , retreive this details and do it whatever you need.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 

 NSUserDefaults * standardUserDefaults = [NSUserDefaults standardUserDefaults];
 NSString *userName = [standardUserDefaults objectForKey:@"userName"];

 NSUserDefaults * pswd = [NSUserDefaults standardUserDefaults];
 NSString *userName = [standardUserDefaults objectForKey:@"password"];

 if (userName == expectedUsername && pswd == expectedPswd) {

    //load the home screen
 }
 else
 {
    //load the login screen
 }
}

To implement a settings bundle, please read this link

Answer 2

嘿monish kumar，该URL可以帮助您http://as.wiley.com/WileyCDA/WileyTitle/productCd-1118144252.html此URL链接至本书，第9章介绍了如何实现它，还提供了代码