I'm trying to detect if an Android device has rebooted since the last time a preference value is set. Ideally, I'd like to do it without the android.permission.RECEIVE_BOOT_COMPLETED permission.
One way I'm thinking about doing this is storing another preference value that contains some sort of session ID. When I update the preference value in question, I'd update the session value as well. When I check the value in the preference for the session value, if it equals the current session value then there has not been a reboot. If the current session value is different than what's saved, then there's been a reboot. Unfortunately, I've been digging through the docs for quite some time now trying to find a session value, and I can't find anything.
I'd like help with one of two things. If you can provide where I could find a value of something similar to a session ID or a boot ID, then I'll use my algorithm. Alternatively, I'd be open to another algorithm to solve the problem. Thank you so much!
Yes you can do that using Application class and the Non-Static broadcast Receiver ACTION_SHUTDOWN. The Application class got started in two cases
- Android Device Boot
- Your Application Starts after it was "Force-Close" it.
When ACTION_SHUTDOWN received use your application Shared-preferences or database to save a boolean shutdown = true when application class starts check this boolean. If it is true then the device is booting , else the user forced your app to stop.
To get more info you can read the following post that I wrote and try the code example in which, I added
- Application Class
- Boot Broadcast Receiver (To Show the difference and that both starts)
- Shutdown broadcast receiver that is register in the Application calss
来源：https://stackoverflow.com/questions/27562179/determine-if-phone-has-been-rebooted