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eframe's Event::Resumed on android panics since #3172 #3674

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m-hugo opened this issue Dec 4, 2023 · 3 comments · Fixed by #3847 · May be fixed by #3676
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eframe's Event::Resumed on android panics since #3172 #3674

m-hugo opened this issue Dec 4, 2023 · 3 comments · Fixed by #3847 · May be fixed by #3676
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@m-hugo
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m-hugo commented Dec 4, 2023

Hiding and resuming any eframe app on android since #3172 causes it to crash, logging (on master) thread panicked at .cargo/git/checkouts/egui-5e4507fa4153be06/84a6d6f/crates/eframe/src/native/wgpu_integration.rs:392:54: no entry found for key

egui/crates/eframe/src/native/wgpu_integration.rs

Line 392 in 84a6d6f

running.shared.borrow().viewports[&ViewportId::ROOT]

the offending line is running.shared.borrow().viewports[&ViewportId::ROOT]
the commit after #3172 logs the same line but in eframe/src/native/run.rs
the commit before works fine
digging in #3172's commits, it was broken as early as 7caa042 .get(&ViewportId::ROOT): called Option::unwrap() on a None value

Expected behavior
get back to the app normally like before #3172

Smartphone

  • OS: Android 13
@m-hugo m-hugo added the bug Something is broken label Dec 4, 2023
@m-hugo
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m-hugo commented Dec 4, 2023 •
edited

almost the same with glow but with a black screen and while I got a panic .cargo/git/checkouts/egui-5e4507fa4153be06/7caa042/crates/eframe/src/native/run.rs:2585:30: called Option::unwrap() on a None value on a pre-0.24 commit
current master blackscreens without panics

@emilk emilk mentioned this issue Dec 4, 2023
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emilk commented Dec 4, 2023

Please see if #3676 helps

@ghost ghost mentioned this issue Dec 5, 2023
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@Garoven Garoven mentioned this issue Jan 19, 2024
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emilk pushed a commit that referenced this issue Jan 22, 2024
@Garoven
Fix Android crash on resume (#3847)
e46b001 
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Added Viewport reinitialization and Window recreation for Android on
resume event.

Closes <#3674>.


https://github.com/emilk/egui/assets/95014675/7bc51ea5-3f63-4422-b5a0-ce8291612982
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m-hugo commented Jan 22, 2024

follow-up at #3861

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Fix Android crash on resume with wgpu Garoven/egui
Fix crash on Android emilk/egui
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