datepicker - How to convert a string Date & Time to NSDate in iOS? -

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• how convert string date format in ios? 2 answers

i facing issue last 2 days. requirement this.

i have start date string. : start_date == 15-07-15

and end date string. : end_date == 16-07-15

and time like: start time == 16:28, end time == 18:28

i combine 2 string , convert nsdate.

   nsstring *strt_date = [nsstring stringwithformat:@"%@ %@",start_date, start_time];    nsdateformatter *dateformat = [[nsdateformatter alloc] init];   [dateformat settimezone:[nstimezone timezonewithname:@"gmt"]];   [dateformat setdateformat:@"dd-mm-yy hh:mm"];    nsdate *date = [dateformat datefromstring:strt_date]; 

output :

 date == 2015-07-15 11:01:00 +0000 

then fire notification :

[self schedulenotificationfordate:date];  - (void)schedulenotificationfordate:(nsdate *)date {   // here cancel scheduled notifications   [[uiapplication sharedapplication] cancelalllocalnotifications];    nslog(@"date == %@",date);    uilocalnotification *localnotif = [[uilocalnotification alloc] init];   if (localnotif == nil)       return;   localnotif.firedate = date;// sets when notification called.   // notification details   localnotif.timezone = [nstimezone defaulttimezone];   localnotif.alertbody = @"time read course";// shows alert box message.   // set action button    localnotif.alertaction = @"view";   localnotif.soundname = uilocalnotificationdefaultsoundname;   localnotif.applicationiconbadgenumber = -1;    // schedule notification   [[uiapplication sharedapplication] schedulelocalnotification:localnotif]; } 

note: device in 24 hr format , date format 24 hr format.

my question notification not firing. please me.

first create single string date & time.

nsstring *strt_date = [nsstring stringwithformat:@"%@ %@",start_date,start_time]; nsstring *endd_date = [nsstring stringwithformat:@"%@ %@",end_date,end_time]; 

than pass string following function

-(nsdate*)datefromstring:(nsstring*)strdate {     nsdateformatter *dateformatter = [[nsdateformatter alloc]init];     dateformatter.dateformat = @"dd-mm-yy hh:mm";      return [dateformatter datefromstring:strdate]; } 

then set firedate