I am using a Samsung Galaxy S5 and I tried to use the Battery Saver option. The problem happens randomly when I turn on Battery Saver then put my phone in my pocket. After I jog for about 10 mins or so and I take my phone out to try and click on something (ex. Pokespot or gym), it does not respond. However, I can still see the animations of the Pokespot on the map, its just that it won't respond to any input.
Does anyone know of a fix other than restarting the app every time it happens?
UPDATE: Found a solution to this by using an app called Caffeine, checkout the answer below for details.