Lock the touch screen while playing games, videos and music. A well established application to prevent accidental operations, developed continuously since 2013. Rich customization, free, without ads. Touch Protector is different from common screen lock apps. Watch the video below to see it. Your phone's battery monitoring feature may be forcing Touch Protector to terminate. You may want to exclude Touch Protector from your phone's battery monitoring. The following website is useful for setting up the exclusion.
Required Android Versions : Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]