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Screen dictionary

While auto OCR runs, Droid Sentence Miner publishes a touchable text layer over the characters it just read. The layer is invisible; touches pass through everywhere except the text itself.

  1. Start auto OCR with A single app pointed at the game or video.
  2. Tap a Japanese character in the subtitle or dialogue box.
  3. The word covering it highlights and its definition opens next to it.
  4. Hold and drag to select a different range of characters.
  5. Tap Anki to mine it, or tap outside to close the popup.

The popup is placed like Yomitan’s: below the word when there is room, above when there is not, and shifted to stay on screen. Its width is 420 dp in portrait and 600 dp in landscape.

A lookup pauses media playback with a media key, so the line does not roll away while you read. When the popup closes, playback resumes — but only if it was playing before the lookup. If you paused the video yourself, the layer stays and you can tap word after word.

Some apps route media keys to the last active media session (for example, a YouTube video that was paused earlier). The app re-checks audio state before resuming and skips the resume if something else is already playing.

Each OCR line becomes one transparent overlay window fitted to the line. Tap positions are mapped back to the OCR text using per-character boxes:

  • meikiocr returns character x-intervals.
  • ML Kit returns symbol boxes.

If the character boxes and the cleaned text disagree, the layer falls back to evenly spaced positions. Text outside the configured text areas is not tappable.

Touches between lines pass through to the game, so a game’s buttons still work. While the popup is open the layer is frozen and auto OCR pauses; otherwise the app would read its own definition text.

The layer can be up to one OCR interval old. After the popup opens, the app waits 250 ms and reads the paused frame again:

  • if the word under your finger changed (a rolling caption), the popup moves to the new word;
  • if the new read sees other text but nothing under the finger, the popup closes;
  • if the read is empty, nothing changes.
  • Settings → Auto OCR → Tap text on screen to look it up — turn the layer off if it interferes with a game’s own touch controls.
  • Pause the video while looking up — disable if you prefer the video to keep playing.