[Android] Double touches move cursor to the edge of the screen
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- Dominant language
- C
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Description
Description
The two-finger right click often moves the cursor to the far edge of the screen. Here's a video.
It seemed to do this regardless of finger distance. It is caused by a slightly imperfectly timed double touch
Expected behavior
Touches are registered as a double touch in the center of your two touches
Actual behavior
Cursor flies to the edge of the screen
Steps to reproduce the bug
- Open a game with DOSBox or Desume
- attempt to right click (DOSBox only) by double touching, but delay one finger's touch just a bit.
Bisect Results
Basically if the touches are rejected as a double touch, meaning not simultaneous enough but nearly so, it considers both touches as the trajectory of a single drag. So you can make this happen in any direction intentionally.
Version/Commit
RetroArch: AArch64
RetroArch Info
#
Environment information
- OS: Android 12
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source file or test is named. Reproduce the delayed two-finger touch on Android, then trace the touch handling that distinguishes a double touch from a single drag; done means near-simultaneous touches register at their center instead of moving the cursor to the screen edge.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, c
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100