This app's purpose was to help users to maintain healthy eyesight when using their phone or computer. This is done by activating a alarm every 20 mins (or the amount of time that the user chooses) that reminds the user to look up from their device and to look out at something that is more than 20 metres (or 20 feet) for 20 seconds (the alarm should last 20 seconds unless the user specifies otherwise).
I stopped development on this project because after enough testing I found out that setExactAndAllowWhileIdle does not work during doze mode which is pretty problematic if the user is using this for a computer or laptop (This can be avoided if the phone is being used the whole time or if the phone is on charge). Trying to circumvent the doze mode I could use ignore_battery_optimzation but this might be a violation of google play store policies if the google play store deems it unnecessary or damaging to the user experience. Another problem is the latest api's has been restricting background activity intents.
There are various small bugs which I did not focus on fixing due to the main problem of the alarm not working the way I intended it too. The main bug that was the main reason for ceasing development, was that when the phone was in doze mode the alarm would not activate or would wait until the next wake up period which could last way longer than the alarm time. I did not find this bug until later into development because when my phone was being tested it was always plugged in to be charged and I was new to android development. The smaller bugs were to do with screen changes to settings and sound settings such as choosing your own sound and then not selecting anything. There are probably more bugs, but I have not worked on this app for some time and I have been not using the app lately.
This app was mostly tested on my phone which was api level 27 and now 28. It should be backwards compatible till at least 23. I think that there will be problems in 29 or higher due to restrictions on background services jumping to the foreground and any energy saving methods applied by the api level or other apps.
My next projects I am thinking of making is a windows application that is the same as this app, learning new languages/frameworks or a portfolio website.
Critiques are welcome.