Crash on certain Layouts

[gustav-langer]

Thumb-Key Version 2.6.6

Describe the bug When selected, some keyboard layouts crash the app. The layouts I found were english composed, english two-hands numbers-symbols and math. Sometimes english composed crashed immediately when clicking 'save', but this was not reproducible. Math crashes only when uppercase is selected.

To Reproduce Steps to reproduce the behavior:

1. Go to the settings
2. Enable any of the mentioned layouts
3. Click on any text field to bring up the keyboard
4. If it isn't already, select the layout
5. Crash

[Screwtapello]

I can reproduce this behaviour, just with:

• start the Thumb-Key app
• tap "Reset to Defaults" and accept the confirmation dialog
• enable the "english composed thumb-key" layout
• tap "Test out Thumb-Key"
• switch layouts

adb logcat produces the following unhelpful backtrace:

01-14 11:41:12.516 19369 19369 E AndroidRuntime: FATAL EXCEPTION: main
01-14 11:41:12.516 19369 19369 E AndroidRuntime: Process: com.dessalines.thumbkey, PID: 19369
01-14 11:41:12.516 19369 19369 E AndroidRuntime: java.util.NoSuchElementException: Char sequence is empty.
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at c0.b.g(SourceFile:175)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at c0.b.h(SourceFile:138)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at c0.b.i(SourceFile:266)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at s4.d.a0(SourceFile:217)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at m0.c.a0(SourceFile:59)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.b0.L(SourceFile:359)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.b0.V(SourceFile:29)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at androidx.compose.material3.b5.a(SourceFile:65)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at q.x.a(SourceFile:257)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at q.x.a0(SourceFile:112)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at m0.c.a0(SourceFile:59)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at a0.n.M(SourceFile:5)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at d5.a.f(SourceFile:177)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at androidx.compose.material3.v1.a(SourceFile:1234)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at c0.b.w(SourceFile:99)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at s4.e.a(SourceFile:48)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at x.h0.a(SourceFile:42)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at x.h0.a0(SourceFile:40)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.b0.L(SourceFile:359)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.b0.T(SourceFile:58)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.b0.q(SourceFile:173)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.b0.K(SourceFile:32)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.h0.w(SourceFile:19)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.p2.r(SourceFile:103)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at f0.m2.f0(SourceFile:389)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at androidx.compose.ui.platform.z0.doFrame(Unknown Source:6)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at androidx.compose.ui.platform.x0.doFrame(SourceFile:48)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:965)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.view.Choreographer.doCallbacks(Choreographer.java:791)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.view.Choreographer.doFrame(Choreographer.java:722)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:952)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.os.Handler.handleCallback(Handler.java:883)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.os.Handler.dispatchMessage(Handler.java:100)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:214)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at android.app.ActivityThread.main(ActivityThread.java:7386)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at java.lang.reflect.Method.invoke(Native Method)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
01-14 11:41:12.516 19369 19369 E AndroidRuntime:    Suppressed: v6.g: [f0.t1@d8b319e, androidx.compose.ui.platform.y1@b96747f, r1{Cancelling}@fc87c4c, y0@d044495]

I'm using v2.6.6 from F-Droid; the previous F-Droid release v2.6.4 worked fine.

I don't know if it's possible to create a build of Thumb-Key that hasn't been obfuscated, or some way to apply debug symbols to that traceback to figure out what's gone wrong.

[dessalines]

Verified.