Can anyone tell me how can I know if an app runs for the first time on an device? In my app I need to receive some data from a server only when app runs for the first time..
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1Maybe a duplicate. http://stackoverflow.com/questions/7217578/android-apllication-first-run – sealz Sep 01 '11 at 11:25
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I think this link would be best according to code http://stackoverflow.com/questions/8617662/android-how-can-i-know-if-it-is-the-first-time-the-application-launched – surhidamatya Nov 07 '13 at 03:43
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Look here that code: http://stackoverflow.com/a/7217834/4039762 Enter this in your Activity – Androider123454321 Oct 10 '14 at 17:50
2 Answers
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Boolean flag to SharedPreferences or check if that data already exists in the system and retrieve only if needed.
Jayp
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Agree with Jayp's answer, just want to make it a bit more clear. When you try to get a value from SharedPreferences, there are two scenarios:
- Value indeed is there under the mentioned key and it's being returned.
- Value is not created yet and a default value is returned.
You can try to get value, and if it's not created yet - means your app is being run for the first time. Then you can put a value under this key and next time when you try to get the value - you'll receive the value you've put there. Hope this helps.
