IOS Development uses Keychainitemwrapper persistent storage username and password _ios

First download from the official website

KeychainItemWrapper.h
Keychainitemwrapper.m

Import these two files into your project but the file is manually released so you need to do some processing to use this file:

If you want to use the KeychainItemWrapper.h class to select the class in Compilesources to add-fno-objc-arc

Next, go directly to the code:

Keychainitemwrapper *keychain=[[keychainitemwrapper alloc] initwithidentifier:@ "MyKey" Accessgroup:nil];//mykey customization
  //Save data at once save the key string can still be obtained by keychain
//  [Keychain setobject:@ "Little Pig" Forkey: (ID) ksecattraccount];//account name///  [Keychain setobject:@ "123456" Forkey: (ID) ksecvaluedata];//account password
  // Remove account password from keychain
  nsstring *password = [Keychain Objectforkey: (ID) ksecvaluedata];
  NSLog (@ "%@", password);
  Empty settings
//  [keychain Resetkeychainitem];

The above is small set to introduce to you about the development of iOS using Keychainitemwrapper persistent storage username and password of all content, I hope you like.