A simple resolution changer that uses ADB. You need a PC for the first step.

Resolution Changer is an intuitive tool designed for Android devices that facilitates the customization of screen resolution and display density using the Android Debug Bridge (ADB). This utility stands out for leveraging the IWindowManager, a once-restricted Android API, which has been made accessible to developers through a Secure Setting modification. Ideal for those who relish the ability to refine their visual experience, Resolution Changer offers both flexibility and control over how content is rendered on their devices.

Upon initializing the application, Resolution Changer commences by unlocking the blacklisted APIs. Post that, it proceeds to set the screen to the desired resolution and density. Users have the autonomy to alter these parameters as they wish; in the absence of explicit height or width inputs, Resolution Changer gracefully defaults to the present device settings. Moreover, when not provided with a density value, the software ingeniously calculates an optimal density that harmonizes with the device’s screen size for a natural viewing experience.

A word of caution—improper resolution settings can impair screen visibility. In such cases, the recovery process is straightforward but necessitates a PC. By connecting the Android device to the PC and inputting specific 'adb shell' commands into the command prompt or terminal, users can effortlessly reset to standard resolution and density settings, ensuring peace of mind when experimenting with different configurations.

Resolution Changer symbolizes the fusion of flexibility and user empowerment, serving as a testament to the continued evolution of user customization within the Android ecosystem.