ios - Reorganize dictionary order by values? -

i have app receives json file webserver , convert nsdictionary can see below:

[nsjsonserialization jsonobjectwithdata:data options:0 error:&jsonerror] 

the structure of dictionary follows:

[0] => { "name" = "josh", meters = "8"  } [1] => { "name" = "lina", meters = "10"  } [2] => { "name" = "pall", meters = "21"  } 

you can see data organized key meters, unfortunately webserver not give possibility maintain open connection, in case, new records come through apns (push notification)

assuming comes following record notification:

{"name" = "oli", meters = "12"}  

i insert in dictionary, once that's done, how can rearrange array , order meters?

there's no order inherent in dictionary. see ordering in initial set accidental.

arrays have ordering, , can array dictionary sending allkeys or allvalues.

using fact organize dictionary, might try this:

nsarray *orderedpairs = [@[] mutablecopy]; (id key in [somedictionary allkeys]) {     [orderedpairs addobject:@[key, somedictionary[key]]]; }  [orderedpairs sortusingcomparator:^nscomparisonresult(nsarray *a, nsarray *b) {     // return [a[0] compare:b[0]];  // sort key      return [a[1] compare:b[1]];  // sort value  }]; 

note result in array -- not dictionary -- 1 ordered.