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iosobjective-cxcodensnotificationcenter

how to call a web service daily on particular time using local notification in objective c

My requirement is, I need to call a Web-Service and the count of the data should come on the local notification content on daily at 8 AM

example : you have 10 new notification, the 10 is the count of the data in an array.

Some one please help me to do this.

Thanks in advance.

Solution

  • you cant schedule something like this offline but you have 2 options that differ

    1. with thr app background refresh API you may come close. If you opt in to that api, ios will wakeup your app when it has spare cycles and will give you cpu time to run some code and allow you to do this.

      the background refresh api was meant for 'periodic' updates like this IMO. What you cannot do with it though, is schedule any EXACT times/dates/intervals you want to be woken. You can recommend times to ios but it may or may not stick to the plan (this depends on device use .... battery .... time of day...... etc)

    2. another option are a backend that sends 'silent' push notifications at your required time. IOS would wake your app for those notifications and as they are silent, the user wont see it.

    3. you can have a backend send you non silent pushes. Your app will be launched on tapping the notification and you can do whatever you like

    ==> option 1 works offline, option 2 and 3 require connectivity and even worse a decdicated backend to support it. IMHO option 1 is often very good and underrated.