问题
As other posts have shown, Samsung's Game Tuner can silently change the resolution of your game, making drag and drop no longer function.
I have changed my app to check if Game Tuner is installed, but I would like to detect if it has changed the Resolution Ratio to <100%.
I logged standard and real DisplayMetrics for both 100% and 75% Resolution Ratio (see below). But there is no difference that I see I can use.
Does anybody have a clue what display metrick I might look at?
Resolution Ratio=100% 2016-07-27 06:59:02.534 Standard display metrics fontScalingFactor=4.000000, logicalDensity=4.000000, densityDPI=640, widthpx=1440, heightpx=2560 Real display metrics fontScalingFactor=4.000000, logicalDensity=4.000000, densityDPI=640, widthpx=1440, heightpx=2560
Resolution Ratio=75% 2016-07-27 07:00:40.517 Standard display metrics fontScalingFactor=3.000000, logicalDensity=3.000000, densityDPI=480, widthpx=1080, heightpx=1920 Real display metrics fontScalingFactor=3.000000, logicalDensity=3.000000, densityDPI=480, widthpx=1080, heightpx=1920
来源：https://stackoverflow.com/questions/38617750/how-to-tell-whether-samsung-game-tuner-is-changing-resolution-ratio