Start Activity on Reboot Only

Question

Basically I am trying to make an activity containing a button which reboots the device and after the reboot returns to the same activity.

I understand that this question may get confused with others about rebooting the device, but that is not the focus of this question as I can get the device to reboot fine.

I have made the button reboot the device but the only way I can get it to start the activity after it's finished rebooting is to register a broadcast receiver for BOOT_COMPLETED in the manifest. The trouble is that this method starts the activity every time the device boots which is undesirable. When I register the receiver on the button click listener it does not start the activity after the reboot.

I was wondering if there might be an extra in BOOT_COMPLETED that I could use to decide if it had been purposefully rebooted.

Any advice would be appreciated, thanks in advance!

Shubham A. · Accepted Answer · 2015-08-26T08:47:51.737

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Just save an integer corresponding to device purposely being rebooted through your activity. Use SharedPreference for the same. On reboot, in your broadcast receiver, check if the value is set. If it is set, start your activity, otherwise, let it go.

EDIT :

Always, unset this value when reboot is complete and your Activity is in front.

edited Aug 26 '15 at 08:47

answered Aug 26 '15 at 08:40

Shubham A.

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This is the way to go – borax12 Aug 26 '15 at 08:42
nice answer. Just for a better explaination: ALWAYS, on activity start, set the value to 0(for example) and when you reboot from app set it to 1(for example). On reboot, if it is 1, start the Activity :) – Pier Giorgio Misley Aug 26 '15 at 08:44
@Shubham no prob, just to avoid future questions about it..:) – Pier Giorgio Misley Aug 26 '15 at 08:50

score 0 · Answer 2 · edited May 23 '17 at 12:31

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Your XML should be stored in a file named AndroidManifest.xml, not manifest.java.

Another reason your code is not being run, might be that your App is installed on external storage (sdcard). BOOT_COMPLETE is sent to applications before external storage is mounted. So if application is installed to external storage it won't receive BOOT_COMPLETE broadcast message.

If that isn't the problem, there is already a very good description of how to get boot completed receivers working on Android.

Trying to start a service on boot on Android

edited May 23 '17 at 12:31

Community

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answered Aug 26 '15 at 08:41

Akshay Sood

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It is installed on internal as there is no external storage on this device. Also the Manifest is an XML file. Thanks for the answer though! – jambo Aug 26 '15 at 09:04

Start Activity on Reboot Only

2 Answers2