ios - objective c and iphone map route issue -

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i have been using link polyline points content of link

i have expression polyline points

nsstring* apiurlstr = [nsstring stringwithformat:@"http://maps.google.com/maps??output=dragdir&saddr=%@&daddr=%@", saddr, daddr];  nsregularexpression *regex = [nsregularexpression regularexpressionwithpattern:@"points:\\\"([^\\\"]*)\\\"" options:0 error:null];  nstextcheckingresult *match = [regex firstmatchinstring:apiresponse options:0 range:nsmakerange(0, [apiresponse length])];  nsstring *encodedpoints = [apiresponse substringwithrange:[match rangeatindex:1]];

but code returns encodedpoints nil in response

this response link above in xcode:

link code: response content

how encoded points using regular expression? problem in code? working fine before 2 days. don't know problem.

you should use webservice. google maps provides api.

your issue you're downloading web page. said working 2 days ago? well, may have change page since then.
example, there string "points:" in document. why regex fails. if tomorrow change source code of page (as may have happened since 2 days ago), you're redo it, whereas api should not change (or @ least keeps working few moments, years, etc. deprecated version).


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