iphone - Need help creating .plist in app -

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my app ships .plist looks this:

enter image description here

i want user able add custom exercisename.

so need create new .plist in user's document folder mimics format. can me this?

i need (pseudo code)

if (userdata == nil) {      create .plist file;      setup .plist mimic format of img above. }  save exercisename appropriately.

update:

if (exercisearray == nil) {     nsstring *path = [[nsbundle mainbundle]pathforresource:@"data" oftype:@"plist"];     nsmutablearray *rootlevel = [[nsmutablearray alloc]initwithcontentsoffile:path];     self.exercisearray = rootlevel;     [rootlevel release]; }

what want load plist nsdictionary, , encode nsdictionary plist file in applications document folder. in applicationdidfinishloading: method, this:

nsstring * documentfile = [nshomedirectory() stringbyappendingformat:@"/documents/myplist.plist"]; if (![[nsfilemanager defaultmanager] fileexistsatpath:documentfile]) {     // create copy of our resource     nsstring * respath = [[nsbundle mainbundle] pathforresource:@"myplist" oftype:@"plist"];     // note: replace @"myplist" name of file in resources folder.     nsdictionary * dictionary = [[nsdictionary alloc] initwithcontentsoffile:respath];     [dictionary writetofile:documentfile atomically:yes];     [dictionary release]; }

then, when want add item, want use nsmutabledictionary modify , save existing plist in app's documents directory:

- (void)addexercise {     nsmutabledictionary * changeme = [[nsmutabledictionary alloc] initwithcontentsoffile:documentfile];     ... make changes ...     [changeme writetofile:documentfile atomically:yes];     [changeme release]; }

to make changes, need find sub-dictionary containing array of exercises. use setobject:forkey: method on nsmutabledictionary set new array containing new list of exercises. might this:

nsmutablearray * list = [nsmutablearray arraywitharray:[changeme objectforkey:@"list"]]; nsarray * exercises = [[list objectatindex:10] objectforkey:@"exercises"]; nsdictionary * newexercise = [nsdictionary dictionarywithobject:@"type lot" forkey:@"exercisename"]; exercises = [exercises arraybyaddingobject:newexercise]; nsmutabledictionary * dict = [nsmutabledictionary dictionarywithdictionary:[list objectatindex:10]]; [dict setobject:exercises forkey:@"exercises"]; [list replaceobjectatindex:10 withobject:dict]; [changeme setobject:list forkey:@"list"];

once make change, important remember write changeme plist file in documents directory.


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