ios - How to add a key and string in dictionary? -

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my plist file:

   nsarray *documentpaths = nssearchpathfordirectoriesindomains(nscachesdirectory, nsuserdomainmask, yes);    nsstring *path = [[documentpaths lastobject] stringbyappendingpathcomponent:@"data.plist"];    dict = [nsdictionary dictionarywithcontentsoffile:path];

loop through array, adding annotations , calculate distance:

 ann = [dict objectforkey:@"blue"];  [resultarray addobject:@"blue"];    for(int = 0; < [ann count]; i++) {    nsstring *coordinates = [[ann objectatindex:i] objectforkey:@"coordinates"];   double reallatitude = [[[coordinates componentsseparatedbystring:@","] objectatindex:1] doublevalue];  double reallongitude = [[[coordinates componentsseparatedbystring:@","] objectatindex:0] doublevalue];   myannotation *myannotation = [[myannotation alloc] init];  cllocationcoordinate2d thecoordinate;  thecoordinate.latitude = reallatitude;  thecoordinate.longitude = reallongitude;   myannotation.coordinate=cllocationcoordinate2dmake(reallatitude,reallongitude);  myannotation.title = [[ann objectatindex:i] objectforkey:@"name"];  myannotation.subtitle = [[ann objectatindex:i] objectforkey:@"address"];  myannotation.icon = [[ann objectatindex:0] objectforkey:@"icon"];   [mapview addannotation:myannotation];  [annotations addobject:myannotation];   cllocation *pinlocation = [[cllocation alloc]                                            initwithlatitude:reallatitude                                            longitude:reallongitude];   cllocation *userlocation = [[cllocation alloc]                                  initwithlatitude:mapview.userlocation.coordinate.latitude                                             longitude:mapview.userlocation.coordinate.longitude];   cllocationdistance distance = [pinlocation distancefromlocation:userlocation];   nslog(@"distance: %4.0f m.", distance);   }

my plist structure:

enter image description here

now need add dictionaries in "blue" array new key named "distance" string distance

you can write these lines inside for() loop :

nsstring *dist = [nsstring stringwithformat:@"%4.0f m.", distance]; nsmutabledictionary *indict = [[nsmutabledictionary alloc] init]; indict = [ann objectatindex:i]; [indict setvalue:dist forkey:@"distance"];

goodluck !!!


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