ANR on suspend: CoronaActivity blocks in GLSurfaceView.surfaceDestroyed after recent OS update

[marksolar2d]

Steps to Reproduce

Create a minimal Solar2D project with only:

Runtime:addEventListener("system", function(e) print("system", e.type) end)

Build and install on a Pixel 8 running the September 2025 Android update.

Launch the app.

Press the power button to sleep the device.

Wait ~2–3 seconds, then unlock.

Expected

App receives applicationSuspend and applicationResume.

Process stays alive, like on other devices / OS versions.

Actual

No applicationSuspend is logged.

After ~5 seconds:

W/ActivityTaskManager: Activity pause timeout for CoronaActivity
I/ActivityManager: Process com.solar2d.app.test has died: fg TOP

App cold-starts on resume.

ANR Trace

Excerpt from /data/anr/traces.txt (main thread):

"main" prio=5 tid=1 Waiting
  at com.ansca.corona.graphics.opengl.GLSurfaceView$GLThread.surfaceDestroyed(GLSurfaceView.java:1735)
  - locked <0x0ef389d0> (a com.ansca.corona.graphics.opengl.GLSurfaceView$GLThreadManager)
  at com.ansca.corona.CoronaActivity.onPause(CoronaActivity.java:??)

Notes

Unity apps suspend/resume correctly on the same device.

Solar2D currently blocks the UI thread waiting for GL teardown, which now triggers the stricter ANR watchdog on Android 15.

Suggested Fix

Rework CoronaActivity → GLSurfaceView.surfaceDestroyed() handling.

Avoid blocking the UI thread in onPause; delegate GL teardown to the GL thread or defer until resume.

Similar approach already used by Unity and other engines to survive Android 14/15 lifecycle changes.