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I am using an BLE HID mouse, and I have an option to recenter the mouse according to screen resolution that I get from an iPhone. I have 2 issues regarding this post: Getting the screen resolution of an iPhone 11 sends back the resolution of an iPhone 11 Pro and vise versa. To re-center the pointer, I send an HID movement to the iPhone, first to the corner (doesn't matter which one), second to center which is just the resolution divided by 2 on both width and height. Not consistent, but the pointer doesn't always go to the center. My questions are: Why is the resolution sends differently on these devices? Is there a correct way to center the pointer using HID movement commands?

While using an HID device that recognized as mouse and keyboard using assistive touch, I noticed that sometimes after some usage, the feature in "AssistiveTouch" menu called, "Perform Touch Gestures", is no longer working although it remains on, as well as the assistive touch that remains on. In order to make it work again, you need to turn off and on the assistive touch feature. What could cause this issue? Does it relate to the HID Descriptor of report map? Or am I sending some commands that can cause this crash? Is there any way to avoid/be aware/get some callback on when this feature crashes using swift?