android.view.textservice.SuggestionsInfo#RESULT_ATTR_LOOKS_LIKE_TYPO源码实例Demo

/**
 * Checks for typos and sends results back to native through a JNI call.
 * @param results Results returned by the Android spellchecker.
 */
@Override
public void onGetSentenceSuggestions(SentenceSuggestionsInfo[] results) {
    ArrayList<Integer> offsets = new ArrayList<Integer>();
    ArrayList<Integer> lengths = new ArrayList<Integer>();

    for (SentenceSuggestionsInfo result : results) {
        for (int i = 0; i < result.getSuggestionsCount(); i++) {
            // If a word looks like a typo, record its offset and length.
            if ((result.getSuggestionsInfoAt(i).getSuggestionsAttributes()
                    & SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO)
                    == SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO) {
                offsets.add(result.getOffsetAt(i));
                lengths.add(result.getLengthAt(i));
            }
        }
    }

    nativeProcessSpellCheckResults(mNativeSpellCheckerSessionBridge,
            convertListToArray(offsets), convertListToArray(lengths));
}
 

/**
 * Checks for typos and sends results back to native through a JNI call.
 * @param results Results returned by the Android spellchecker.
 */
@Override
public void onGetSentenceSuggestions(SentenceSuggestionsInfo[] results) {
    mStopMs = SystemClock.elapsedRealtime();

    if (mNativeSpellCheckerSessionBridge == 0) {
        return;
    }

    ArrayList<Integer> offsets = new ArrayList<Integer>();
    ArrayList<Integer> lengths = new ArrayList<Integer>();

    for (SentenceSuggestionsInfo result : results) {
        if (result == null) {
            // In some cases null can be returned by the selected spellchecking service,
            // see crbug.com/651458. In this case skip to next result to avoid a
            // NullPointerException later on.
            continue;
        }
        for (int i = 0; i < result.getSuggestionsCount(); i++) {
            // If a word looks like a typo, record its offset and length.
            if ((result.getSuggestionsInfoAt(i).getSuggestionsAttributes()
                    & SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO)
                    == SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO) {
                offsets.add(result.getOffsetAt(i));
                lengths.add(result.getLengthAt(i));
            }
        }
    }
    nativeProcessSpellCheckResults(mNativeSpellCheckerSessionBridge,
            convertListToArray(offsets), convertListToArray(lengths));

    RecordHistogram.recordTimesHistogram("SpellCheck.Android.Latency",
            mStopMs - mStartMs, TimeUnit.MILLISECONDS);
}
 

private SpellCheckSpan onGetSuggestionsInternal(
        SuggestionsInfo suggestionsInfo, int offset, int length) {
    if (suggestionsInfo == null || suggestionsInfo.getCookie() != mCookie) {
        return null;
    }
    final Editable editable = (Editable) mTextView.getText();
    final int sequenceNumber = suggestionsInfo.getSequence();
    for (int k = 0; k < mLength; ++k) {
        if (sequenceNumber == mIds[k]) {
            final int attributes = suggestionsInfo.getSuggestionsAttributes();
            final boolean isInDictionary =
                    ((attributes & SuggestionsInfo.RESULT_ATTR_IN_THE_DICTIONARY) > 0);
            final boolean looksLikeTypo =
                    ((attributes & SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO) > 0);

            final SpellCheckSpan spellCheckSpan = mSpellCheckSpans[k];
            //TODO: we need to change that rule for results from a sentence-level spell
            // checker that will probably be in dictionary.
            if (!isInDictionary && looksLikeTypo) {
                createMisspelledSuggestionSpan(
                        editable, suggestionsInfo, spellCheckSpan, offset, length);
            } else {
                // Valid word -- isInDictionary || !looksLikeTypo
                if (mIsSentenceSpellCheckSupported) {
                    // Allow the spell checker to remove existing misspelled span by
                    // overwriting the span over the same place
                    final int spellCheckSpanStart = editable.getSpanStart(spellCheckSpan);
                    final int spellCheckSpanEnd = editable.getSpanEnd(spellCheckSpan);
                    final int start;
                    final int end;
                    if (offset != USE_SPAN_RANGE && length != USE_SPAN_RANGE) {
                        start = spellCheckSpanStart + offset;
                        end = start + length;
                    } else {
                        start = spellCheckSpanStart;
                        end = spellCheckSpanEnd;
                    }
                    if (spellCheckSpanStart >= 0 && spellCheckSpanEnd > spellCheckSpanStart
                            && end > start) {
                        final Long key = Long.valueOf(TextUtils.packRangeInLong(start, end));
                        final SuggestionSpan tempSuggestionSpan = mSuggestionSpanCache.get(key);
                        if (tempSuggestionSpan != null) {
                            if (DBG) {
                                Log.i(TAG, "Remove existing misspelled span. "
                                        + editable.subSequence(start, end));
                            }
                            editable.removeSpan(tempSuggestionSpan);
                            mSuggestionSpanCache.remove(key);
                        }
                    }
                }
            }
            return spellCheckSpan;
        }
    }
    return null;
}
 

/**
 * Returns an empty SuggestionsInfo with flags signaling the word is not in the dictionary.
 * @param reportAsTypo whether this should include the flag LOOKS_LIKE_TYPO, for red underline.
 * @return the empty SuggestionsInfo with the appropriate flags set.
 */
public static SuggestionsInfo getNotInDictEmptySuggestions(final boolean reportAsTypo) {
    return new SuggestionsInfo(reportAsTypo ? SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO : 0,
            EMPTY_STRING_ARRAY);
}
 

/**
 * Returns an empty SuggestionsInfo with flags signaling the word is not in the dictionary.
 * @param reportAsTypo whether this should include the flag LOOKS_LIKE_TYPO, for red underline.
 * @return the empty SuggestionsInfo with the appropriate flags set.
 */
public static SuggestionsInfo getNotInDictEmptySuggestions(final boolean reportAsTypo) {
    return new SuggestionsInfo(reportAsTypo ? SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO : 0,
            EMPTY_STRING_ARRAY);
}
 

/**
 * Returns an empty SuggestionsInfo with flags signaling the word is not in the dictionary.
 * @param reportAsTypo whether this should include the flag LOOKS_LIKE_TYPO, for red underline.
 * @return the empty SuggestionsInfo with the appropriate flags set.
 */
public static SuggestionsInfo getNotInDictEmptySuggestions(final boolean reportAsTypo) {
    return new SuggestionsInfo(reportAsTypo ? SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO : 0,
            EMPTY_STRING_ARRAY);
}
 

/**
 * Returns an empty SuggestionsInfo with flags signaling the word is not in the dictionary.
 * @param reportAsTypo whether this should include the flag LOOKS_LIKE_TYPO, for red underline.
 * @return the empty SuggestionsInfo with the appropriate flags set.
 */
public static SuggestionsInfo getNotInDictEmptySuggestions(final boolean reportAsTypo) {
    return new SuggestionsInfo(reportAsTypo ? SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO : 0,
            EMPTY_STRING_ARRAY);
}