The Resolution Changer APK uses a hidden Android API called IWindowManager. Developers can disable the API blacklist by tweaking a Secure Setting in Android Pie to disable access to this API. Originally, Google restricted access to this API starting with Android Pie.
In order to apply the requested resolution and display density, Resolution Changer first unlocks the blacklisted APIs.
The resolution that is currently set by the device will be used if you don't specify a height or width.
Resolution Changer APK will try to determine a suitable density based on the diagonal screen size of the device if you do not specify a density.
Resolutions to suit your needs
Display technologies are constantly improving to provide more vivid colors, faster refresh rates, and higher pixel counts. Media content consumers or those seeking the best picture quality will particularly benefit from the latter. There is usually a cost associated with that, such as decreased performance or a shorter battery life. You can lower your resolution by using Resolution Changer - Uses ADB.
You need to enable Android Debug Bridge(ADB) in developer options in order to use this application. In order for the app to locate and enable the aforementioned display API, connect your device via a USB cable to your PC. By indicating a specific resolution or pixel density, you will be able to immediately change the resolution.
You can reset your screen size and density by typing ADB shell commands to revert to its default settings if you accidentally set a broken resolution. This app is intended for intermediate users who are familiar with these things. Proceed with caution if improper use causes unintended issues that are irreversible.