About User Default

How to use NSUserDefaults

• instance
  • NSUserDefaults *d = [NSUserDefaults standardUserDefaults];
• setXXX type --- for *** Write ***
  • [d setInteger:20 forKey:@"intKey"];
• getXXX type --- for *** Read ***
  • NSInteger str = [d integerForKey:@"intKey"];
• 同步 synchronize
  • [d synchronize];