Add Android IME bridge via Fragment section to touch.md
- Fragment registration pattern from Passgo: app.ViewEvent → GioView → Context → Activity → FragmentManager
- IME Fragment architecture: hidden EditText in transparent Fragment overlay
- Two-way sync: Gio→EditText (cursor sync via setSelection), EditText→Gio (IME events via TextWatcher + JNI callback)
- Text window management: ±1KB around cursor, updated on cursor move and text changes
- IME feature support: autocorrect, swipe typing, voice, predictions, emoji, CJK composition
- Event merging: Main goroutine drains JNI callback channel alongside w.Event() calls
- Implementation notes: impl_android.go, jni_android.c, ime/ImeFragment.java
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
Greg Pomerantz
fdb51810f4