Java 类android.view.textservice.TextInfo 实例源码

public SentenceTextInfoParams getSplitWords(TextInfo originalTextInfo) {
    final WordIterator wordIterator = mWordIterator;
    final CharSequence originalText =
            TextInfoCompatUtils.getCharSequenceOrString(originalTextInfo);
    final int cookie = originalTextInfo.getCookie();
    final int start = -1;
    final int end = originalText.length();
    final ArrayList<SentenceWordItem> wordItems = new ArrayList<>();
    int wordStart = wordIterator.getBeginningOfNextWord(originalText, start);
    int wordEnd = wordIterator.getEndOfWord(originalText, wordStart);
    while (wordStart <= end && wordEnd != -1 && wordStart != -1) {
        if (wordEnd >= start && wordEnd > wordStart) {
            final TextInfo ti = TextInfoCompatUtils.newInstance(originalText, wordStart,
                    wordEnd, cookie, originalText.subSequence(wordStart, wordEnd).hashCode());
            wordItems.add(new SentenceWordItem(ti, wordStart, wordEnd));
        }
        wordStart = wordIterator.getBeginningOfNextWord(originalText, wordEnd);
        if (wordStart == -1) {
            break;
        }
        wordEnd = wordIterator.getEndOfWord(originalText, wordStart);
    }
    return new SentenceTextInfoParams(originalTextInfo, wordItems);
}

@Override
public SentenceSuggestionsInfo[] onGetSentenceSuggestionsMultiple(TextInfo[] textInfos,
        int suggestionsLimit) {
    final SentenceSuggestionsInfo[] retval = splitAndSuggest(textInfos, suggestionsLimit);
    if (retval == null || retval.length != textInfos.length) {
        return retval;
    }
    for (int i = 0; i < retval.length; ++i) {
        final SentenceSuggestionsInfo tempSsi =
                fixWronglyInvalidatedWordWithSingleQuote(textInfos[i], retval[i]);
        if (tempSsi != null) {
            retval[i] = tempSsi;
        }
    }
    return retval;
}

@Override
public SentenceSuggestionsInfo[] onGetSentenceSuggestionsMultiple(TextInfo[] textInfos,
        int suggestionsLimit) {
    final SentenceSuggestionsInfo[] retval =
            super.onGetSentenceSuggestionsMultiple(textInfos, suggestionsLimit);
    if (retval == null || retval.length != textInfos.length) {
        return retval;
    }
    for (int i = 0; i < retval.length; ++i) {
        final SentenceSuggestionsInfo tempSsi =
                fixWronglyInvalidatedWordWithSingleQuote(textInfos[i], retval[i]);
        if (tempSsi != null) {
            retval[i] = tempSsi;
        }
    }
    return retval;
}

@Override
public SuggestionsInfo[] onGetSuggestionsMultiple(TextInfo[] textInfos,
        int suggestionsLimit, boolean sequentialWords) {
    long ident = Binder.clearCallingIdentity();
    try {
        final int length = textInfos.length;
        final SuggestionsInfo[] retval = new SuggestionsInfo[length];
        for (int i = 0; i < length; ++i) {
            final String prevWord;
            if (sequentialWords && i > 0) {
            final String prevWordCandidate = textInfos[i - 1].getText();
            // Note that an empty string would be used to indicate the initial word
            // in the future.
            prevWord = TextUtils.isEmpty(prevWordCandidate) ? null : prevWordCandidate;
            } else {
                prevWord = null;
            }
            retval[i] = onGetSuggestionsInternal(textInfos[i], prevWord, suggestionsLimit);
            retval[i].setCookieAndSequence(textInfos[i].getCookie(),
                    textInfos[i].getSequence());
        }
        return retval;
    } finally {
        Binder.restoreCallingIdentity(ident);
    }
}

/**
 * Update the list of available candidates from the current composing
 * text.  This will need to be filled in by however you are determining
 * candidates.
 */
private void updateCandidates() {
    if (!mCompletionOn) {
        if (mComposing.length() > 0) {
            ArrayList<String> list = new ArrayList<String>();
            list.add(mComposing.toString());
            mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo(mComposing.toString())}, 5);
            setSuggestions(list, true, true);
        } else {
            setSuggestions(null, false, false);
        }
    }
}

@Override
public void onResume() {
    super.onResume();
    final TextServicesManager tsm = (TextServicesManager) getSystemService(
            Context.TEXT_SERVICES_MANAGER_SERVICE);
    mScs = tsm.newSpellCheckerSession(null, null, this, true);

    if (mScs != null) {
        // Instantiate TextInfo for each query
        // TextInfo can be passed a sequence number and a cookie number to identify the result
        if (isSentenceSpellCheckSupported()) {
            // Note that getSentenceSuggestions works on JB or later.
            Log.d(TAG, "Sentence spellchecking supported.");
            mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo("tgisis")}, 3);
            mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo(
                    "I wold like to here form you")}, 3);
            mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo("hell othere")}, 3);
        } else {
            // Note that getSuggestions() is a deprecated API.
            // It is recommended for an application running on Jelly Bean or later
            // to call getSentenceSuggestions() only.
            mScs.getSuggestions(new TextInfo("tgis"), 3);
            mScs.getSuggestions(new TextInfo("hllo"), 3);
            mScs.getSuggestions(new TextInfo("helloworld"), 3);
        }
    } else {
        Log.e(TAG, "Couldn't obtain the spell checker service.");
    }
}

@Override
public SuggestionsInfo onGetSuggestions(final TextInfo textInfo, final int suggestionsLimit) {
    long ident = Binder.clearCallingIdentity();
    try {
        return onGetSuggestionsInternal(textInfo, suggestionsLimit);
    } finally {
        Binder.restoreCallingIdentity(ident);
    }
}

/**
 * Get sentence suggestions for specified texts in an array of TextInfo. This is taken from
 * SpellCheckerService#onGetSentenceSuggestionsMultiple that we can't use because it's
 * using private variables.
 * The default implementation splits the input text to words and returns
 * {@link SentenceSuggestionsInfo} which contains suggestions for each word.
 * This function will run on the incoming IPC thread.
 * So, this is not called on the main thread,
 * but will be called in series on another thread.
 * @param textInfos an array of the text metadata
 * @param suggestionsLimit the maximum number of suggestions to be returned
 * @return an array of {@link SentenceSuggestionsInfo} returned by
 * {@link android.service.textservice.SpellCheckerService.Session#onGetSuggestions(TextInfo, int)}
 */
private SentenceSuggestionsInfo[] splitAndSuggest(TextInfo[] textInfos, int suggestionsLimit) {
    if (textInfos == null || textInfos.length == 0) {
        return SentenceLevelAdapter.getEmptySentenceSuggestionsInfo();
    }
    SentenceLevelAdapter sentenceLevelAdapter;
    synchronized(this) {
        sentenceLevelAdapter = mSentenceLevelAdapter;
        if (sentenceLevelAdapter == null) {
            final String localeStr = getLocale();
            if (!TextUtils.isEmpty(localeStr)) {
                sentenceLevelAdapter = new SentenceLevelAdapter(mResources,
                        new Locale(localeStr));
                mSentenceLevelAdapter = sentenceLevelAdapter;
            }
        }
    }
    if (sentenceLevelAdapter == null) {
        return SentenceLevelAdapter.getEmptySentenceSuggestionsInfo();
    }
    final int infosSize = textInfos.length;
    final SentenceSuggestionsInfo[] retval = new SentenceSuggestionsInfo[infosSize];
    for (int i = 0; i < infosSize; ++i) {
        final SentenceLevelAdapter.SentenceTextInfoParams textInfoParams =
                sentenceLevelAdapter.getSplitWords(textInfos[i]);
        final ArrayList<SentenceLevelAdapter.SentenceWordItem> mItems =
                textInfoParams.mItems;
        final int itemsSize = mItems.size();
        final TextInfo[] splitTextInfos = new TextInfo[itemsSize];
        for (int j = 0; j < itemsSize; ++j) {
            splitTextInfos[j] = mItems.get(j).mTextInfo;
        }
        retval[i] = SentenceLevelAdapter.reconstructSuggestions(
                textInfoParams, onGetSuggestionsMultiple(
                        splitTextInfos, suggestionsLimit, true));
    }
    return retval;
}

@Override
public SuggestionsInfo[] onGetSuggestionsMultiple(TextInfo[] textInfos,
        int suggestionsLimit, boolean sequentialWords) {
    long ident = Binder.clearCallingIdentity();
    try {
        final int length = textInfos.length;
        final SuggestionsInfo[] retval = new SuggestionsInfo[length];
        for (int i = 0; i < length; ++i) {
            final CharSequence prevWord;
            if (sequentialWords && i > 0) {
                final TextInfo prevTextInfo = textInfos[i - 1];
                final CharSequence prevWordCandidate =
                        TextInfoCompatUtils.getCharSequenceOrString(prevTextInfo);
                // Note that an empty string would be used to indicate the initial word
                // in the future.
                prevWord = TextUtils.isEmpty(prevWordCandidate) ? null : prevWordCandidate;
            } else {
                prevWord = null;
            }
            final NgramContext ngramContext =
                    new NgramContext(new NgramContext.WordInfo(prevWord));
            final TextInfo textInfo = textInfos[i];
            retval[i] = onGetSuggestionsInternal(textInfo, ngramContext, suggestionsLimit);
            retval[i].setCookieAndSequence(textInfo.getCookie(), textInfo.getSequence());
        }
        return retval;
    } finally {
        Binder.restoreCallingIdentity(ident);
    }
}

@UsedForTesting
public static TextInfo newInstance(CharSequence charSequence, int start, int end, int cookie,
        int sequenceNumber) {
    if (TEXT_INFO_CONSTRUCTOR_FOR_CHAR_SEQUENCE != null) {
        return (TextInfo) CompatUtils.newInstance(TEXT_INFO_CONSTRUCTOR_FOR_CHAR_SEQUENCE,
                charSequence, start, end, cookie, sequenceNumber);
    }
    return new TextInfo(charSequence.subSequence(start, end).toString(), cookie,
            sequenceNumber);
}

/**
 * Queries the input text against the SpellCheckerSession.
 * @param text Text to be queried.
 */
@CalledByNative
private void requestTextCheck(String text) {
    // SpellCheckerSession thinks that any word ending with a period is a typo.
    // We trim the period off before sending the text for spellchecking in order to avoid
    // unnecessary red underlines when the user ends a sentence with a period.
    // Filed as an Android bug here: https://code.google.com/p/android/issues/detail?id=183294
    if (text.endsWith(".")) {
        text = text.substring(0, text.length() - 1);
    }
    mSpellCheckerSession.getSentenceSuggestions(new TextInfo[] {new TextInfo(text)}, 0);
}

/**
 * Queries the input text against the SpellCheckerSession.
 * @param text Text to be queried.
 */
@CalledByNative
private void requestTextCheck(String text) {
    // SpellCheckerSession thinks that any word ending with a period is a typo.
    // We trim the period off before sending the text for spellchecking in order to avoid
    // unnecessary red underlines when the user ends a sentence with a period.
    // Filed as an Android bug here: https://code.google.com/p/android/issues/detail?id=183294
    if (text.endsWith(".")) {
        text = text.substring(0, text.length() - 1);
    }
    mStartMs = SystemClock.elapsedRealtime();
    mSpellCheckerSession.getSentenceSuggestions(new TextInfo[] {new TextInfo(text)}, 0);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.spellchecker);
    check = (Button) findViewById(R.id.checkerbuttoncheck);
    checktext = (EditText) findViewById(R.id.checkeredittext);
    suggestbox = (TextView) findViewById(R.id.checkersuggestview);
    rightbox = (TextView) findViewById(R.id.righttext);
    preferences = this.getSharedPreferences("team7663.project.camword",Context.MODE_PRIVATE);
    preferences.edit().putBoolean("team7663.project.camword.OCR.mainoff",true).apply();
    checktext.setText(preferences.getString("team7663.project.camword.OCR.savespell",""));
    TextServicesManager tsm = (TextServicesManager) getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE);
    scs = tsm.newSpellCheckerSession(null,null, SpellChecker.this,true);
    MainActivity.spell.setBackgroundResource(R.drawable.spell);
    check.setOnClickListener(new View.OnClickListener() {


        @SuppressWarnings("deprecation")
        @Override
        public void onClick(View v){
            value = checktext.getText().toString();
            rightbox.setText("");
            if(value.isEmpty()==false)
            {
            scs.getSuggestions(new TextInfo(value), 5);
            }
            }
    });
   }

@Override
public SuggestionsInfo onGetSuggestions(final TextInfo textInfo,
        final int suggestionsLimit) {
    long ident = Binder.clearCallingIdentity();
    try {
        return onGetSuggestionsInternal(textInfo, suggestionsLimit);
    } finally {
        Binder.restoreCallingIdentity(ident);
    }
}

public SentenceWordItem(TextInfo ti, int start, int end) {
    mTextInfo = ti;
    mStart = start;
    mLength = end - start;
}

public SentenceTextInfoParams(TextInfo ti, ArrayList<SentenceWordItem> items) {
    mOriginalTextInfo = ti;
    mItems = items;
    mSize = items.size();
}

/**
 * Returns the result of {@link TextInfo#getCharSequence()} when available. Otherwise returns
 * the result of {@link TextInfo#getText()} as fall back.
 * @param textInfo the instance for which {@link TextInfo#getCharSequence()} or
 * {@link TextInfo#getText()} is called.
 * @return the result of {@link TextInfo#getCharSequence()} when available. Otherwise returns
 * the result of {@link TextInfo#getText()} as fall back. If {@code textInfo} is {@code null},
 * returns {@code null}.
 */
@UsedForTesting
public static CharSequence getCharSequenceOrString(final TextInfo textInfo) {
    final CharSequence defaultValue = (textInfo == null ? null : textInfo.getText());
    return (CharSequence) CompatUtils.invoke(textInfo, defaultValue,
            TEXT_INFO_GET_CHAR_SEQUENCE);
}

/**
 * Gets a list of suggestions for a specific string. This returns a list of possible
 * corrections for the text passed as an argument. It may split or group words, and
 * even perform grammatical analysis.
 */
private SuggestionsInfo onGetSuggestionsInternal(final TextInfo textInfo,
        final int suggestionsLimit) {
    return onGetSuggestionsInternal(textInfo, null, suggestionsLimit);
}

/**
 * Gets a list of suggestions for a specific string. This returns a list of possible
 * corrections for the text passed as an argument. It may split or group words, and
 * even perform grammatical analysis.
 */
private SuggestionsInfo onGetSuggestionsInternal(final TextInfo textInfo,
        final int suggestionsLimit) {
    return onGetSuggestionsInternal(textInfo, null, suggestionsLimit);
}