Developer Notes

To enable android mouse support in a project, you must use a source build and set GAndroidEnableMouse to 1 in Engine/Source/Runtime/Launch/Private/Android/LaunchAndroid.cpp before building your editor.

Description

No hover events firing when using a bluetooth mouse on android.

Tested with 4.20p5 CL# 4173645 4.21 CL# 4179794

Steps to Reproduce

Prerequisite: Obtain a Bluetooth mouse and pair it with your android device
(Example project attached)

1. Create an object with 'BeginCursorOver' events or UMG with hover events
2. Set up Player controller to show mouse cursor
3. Launch on android and attempt to use mouse
Result: Mouse cursor is shown, Click events work, however hovered events and GetMousePositiononViewport do not function.

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Fixed
ComponentUE - Platform - Mobile
Affects Versions4.19.24.204.21
Target Fix4.21
Fix Commit4436943
Main Commit4450599
Release Commit4436943
CreatedJul 11, 2018
ResolvedOct 8, 2018
UpdatedSep 16, 2019