Fix helper IME black screen by suppressing keyboard window

[SergioChan]

Summary

• Fix the OpenPocket helper IME causing a full-screen black overlay when activated during Unicode text input on physical devices.
• Replace the ineffective 1px-transparent-view approach with onEvaluateInputViewShown() → false, which prevents the system from creating a keyboard window entirely.

Why

When the helper IME was activated for Unicode text injection (emoji, CJK, etc.), Android's IME window manager ignored the View's LayoutParams and enforced a minimum keyboard window size, resulting in a full-screen black overlay that blocked the agent's view of the screen. The agent would see an empty black screen with no UI elements, get stuck, and fail the task.

Changes

• android/openpocket-ime/OpenPocketIME.java: Override onEvaluateInputViewShown() to return false so the system never creates a keyboard window surface. The InputMethodService still binds to the focused input field, so getCurrentInputConnection() works normally for text injection via broadcast. Return null from onCreateInputView() as defensive backup.
• assets/android/openpocket-ime.apk: Rebuilt APK with the fix.
• Verified on-device: screenshot taken while helper IME is active shows full app content with no black overlay.

Testing

• node --test test/adb-runtime.test.mjs — 40 pass / 0 fail
• On-device verification: switched to helper IME on a physical Pixel, captured screenshot confirming normal screen content (Twitter Notifications page fully visible), sent Unicode text via broadcast successfully, restored Gboard.

Checklist

• I ran relevant tests, or the Testing section explains why I did not.
• I updated docs, or confirmed no doc changes were needed.
• I confirmed the PR does not include secrets, credentials, or private data.

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Project	Deployment	Actions	Updated (UTC)
openpocket	Ready	Preview, Comment	Mar 14, 2026 4:00am