Creation of plist in iOS, data write and read

iOS plist creation, data write and read function create a test.plist file, textinput as input, Displaylabel as the display, there is a button to trigger the retention program Triggerstorage;

-(void) triggerstorage{    Displaylabel.text = textinput.text;        Nsarray *paths =nssearchpathfordirectoriesindomains (nsdocumentdirectory,nsuserdomainmask,yes);    NSString *path=[ Paths    objectAtIndex:0];      nsstring *filename=[path stringbyappendingpathcomponent:@ "Test.plist"];  //Get path         nsdictionary* dic2 = [Nsdictionary dictionarywithcontentsoffile:filename ];  //Read Data     NSLOG (@ "Dic2 is:%@", Dic2);        //Create a dic, write to the plist file     nsdictionary* dic = [nsdictionary dictionarywithobjectsandkeys:displaylabel.text,@ "IP", nil]; Write Data     [dic Writetofile:filename Atomically:yes];    } //Implement viewdidload to does additional setup after loading the view, typically from a nib.-(v OID) viewdidload{    Nsmutablearray *resultdata;     Nsarray *paths= NssearchpathfordirectoriesinDomains (nsdocumentdirectory,nsuserdomainmask,yes);    NSString *path=[paths objectatindex:0];    NSLog (@ "path =%@", path);       nsstring *filename=[path stringbyappendingpathcomponent:@ "Test.plist"];       //Read file     nsdictionary* dic2 = [Nsdictionary dictionarywithcontentsoffile:filename];     NSLog (@ "dic is:%@", Dic2);        if (Dic2 = nil)     {       //1. Create a plist file      & nbsp   nsfilemanager* fm = [Nsfilemanager defaultmanager];        [FM Createfileatpath:filename Conte Nts:nil Attributes:nil];           }    else    {        RESULTDATA=[DIC2 OB jectforkey:@ "IP"];         if ([Dic2 count] > 0)         {    &NBS P       Displaylabel.text = resultdata;      &nbsp }        else        {            Displaylabel.text = @ "";       }   }    Self.navigationItem.rightBarButtonItem = [[[Uibarbuttonit] EM alloc]  //button initialization and trigger condition settings                                                initwithtitle:@ "save"                                 ,         &N Bsp      style:UIBarButtonItemStylePlain                   & nbsp                            target:self   & nbsp                          ,         &NB Sp;        action: @selector (triggerstorage)] autorelease];        [Super Viewdidload];} --------------------------------------------------------------------------------------------------------------- ---------------------------------------------Reference Code: plist file read/write    //1. Create a plist file     Nsarray *paths=nssearchpathfordirectoriesindomains (Nsdocumentdirectory,nsuserdomainmask, YES);  www.2cto.com    NSString *path=[paths    objectAtIndex:0];    NSLog (@ "path =%@", Path);    nsstring *filename=[path stringbyappendingpathcomponent:@ "Test.plist"];        nsfilemanager* fm = [Nsfilemanager defaultmanager];    [FM Createfileatpath: FileName Contents:nil Attributes:nil];           //nsdictionary* dic = [Nsdictionary dictionarywithcontentsoffile:plistpath];& nbsp      //Create a dic, write to plist file     nsdictionary* dic = [Nsdictionary dictionarywithobjectsandkeys:@ "Sina", @ "1", @ "163", @ "2",nil];    [dic writetofile:filename atomically:yes];       /Read file     nsdictionary* dic2 = [nsdictionary dictionarywithcontentsoffile:filename];    NSLog (@ "dic is:%@", Dic2);  related articles: http://blog.csdn.net/ Totogo2010/article/details/7634185http://www.2cto.com/kf/201302/188061.html

Creation of plist in iOS, data write and read