Archive anti-archiving

Archive anti-Archive (troublesome method)
/*
Archive
Create a person instance object
Person *person1=[[person Alloc]init];
[Email protected] "BBB";
[Email protected] "39";

Person *person2=[[person Alloc]init];
[Email protected] "AAA";
[Email protected] "18";


Archive used by NSData
Nsmutabledata *person1data=[nsmutabledata data];

Create an archive tool
Nskeyedarchiver *achiver=[[nskeyedarchiver Alloc]initforwritingwithmutabledata:person1data];

Archive (macro definition required)
[Achiver Encodeobject:person1 Forkey:kperson1];
[Achiver Encodeobject:person2 Forkey:kperson2];


Complete the conversion
[Achiver finishencoding];

Get Documents Path
NSString *documentspath=nssearchpathfordirectoriesindomains (NSDocumentDirectory, NSUserDomainMask, YES) [0];
Stitching file path
NSString *personpath=[documentspath stringbyappendingstring:@ "/Liu Jie Xxoo"];

Write
[Person1data Writetofile:personpath Atomically:yes];
NSLog (@ "documents:%@", Documentspath);






Anti-archiving
Obtaining data from a file path
NSData *undata=[nsdata Datawithcontentsoffile:personpath];

Create an anti-archiving tool
Nskeyedunarchiver *unarchiver=[[nskeyedunarchiver Alloc]initforreadingwithdata:undata];

For anti-archiving
Person *p1=[unarchiver Decodeobjectforkey:kperson1];
Person *p2=[unarchiver Decodeobjectforkey:kperson2];

End Anti-archive
[Unarchiver finishdecoding];
NSLog (@ "name:%@", p1.name);
NSLog (@ "age:%@", p1.age);
NSLog (@ "name:%@", p2.name);
NSLog (@ "age:%@", p2.age);
*/



Archive anti-archiving (simple method)

Get Documents Path
NSString *docpath=nssearchpathfordirectoriesindomains (NSDocumentDirectory, Nsuserdomainmask, YES) [0];

Stitching file path
NSString *filepath=[docpath stringbyappendingstring:@ "/personarray.plist"];

/*
Only one object can be archived
Person *pn1=[[person Alloc]init];
[Email protected] "Wangxiao";
[Email protected] "20";

Archive
[Nskeyedarchiver ARCHIVEROOTOBJECT:PN1 Tofile:filepath];

Anti-archiving
Person *p1=[nskeyedunarchiver Unarchiveobjectwithfile:filepath];
NSLog (@ "name:%@", p1.name);
NSLog (@ "age:%@", pn1.age);
*/


Person *pn1=[[person Alloc]init];
[Email protected] "Tom";
[Email protected] "12";

Person *pn2=[[person Alloc]init];
[Email protected] "Kim";
[Email protected] "25";


Nsarray *[email protected][pn1,pn2];//put two data into the array



Anti-archiving
Nsarray *a=[nskeyedunarchiver Unarchiveobjectwithfile:filepath];

NSLog (@ "name:%@", [a[0] name]);
NSLog (@ "age:%@", [a[0] age]);

NSLog (@ "name:%@", [a[1] name]);
NSLog (@ "age:%@", [a[1] age]);

Archive anti-archive