登录记住账号和密码小Demo

读取 

 1  // 1.读取沙盒中plist文件

 2 

 3     // 1.1.获得沙盒根路径

 4 

 5     NSString *home = NSHomeDirectory();

 6 

 7     // 1.2.拼接Documents路径

 8 

 9     NSString *docPath = [home stringByAppendingPathComponent:@"Documents"];

10 

11     // 1.3.文件的全路径

12 

13     NSString *filepath = [docPath stringByAppendingPathComponent:@"login.plist"];

14 

15     // 2.从plist中加载一个字典出来

16 

17     NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:filepath];

18 

19     

20 

21     // 3.赋值

22 

23     self.userName.text = dict[@"qq"];

24 

25     self.passWord.text = dict[@"pwd"];

 

存储

 1 NSDictionary *dict = @{

 2 

 3                            @"qq" : self.userName.text,

 4 

 5                            @"pwd" : self.userName.text

 6 

 7                            };

 8 

 9     // 2.存储数据到沙盒的plist文件中

10 

11     // 2.1.获得沙盒根路径

12 

13     NSString *home = NSHomeDirectory();

14 

15     

16 

17     // 2.2.拼接Documents路径

18 

19     NSString *docPath = [home stringByAppendingPathComponent:@"Documents"];

20 

21     

22 

23     // 2.3.文件的全路径

24 

25     NSString *filepath = [docPath stringByAppendingPathComponent:@"login.plist"];

26 

27  

28 

29     [dict writeToFile:filepath atomically:YES];