am 740da0d8: Fix an NPE

     * This contains the committed text immediately preceding the cursor and the composing

     * text if any. It is refreshed when the cursor moves by calling upon the TextView.

     */

    private StringBuilder mCommittedTextBeforeComposingText = new StringBuilder();

    private final StringBuilder mCommittedTextBeforeComposingText = new StringBuilder();

    /**

     * This contains the currently composing text, as LatinIME thinks the TextView is seeing it.

     */

    private StringBuilder mComposingText = new StringBuilder();

    private final StringBuilder mComposingText = new StringBuilder();

    // A hint on how many characters to cache from the TextView. A good value of this is given by

    // how many characters we need to be able to almost always find the caps mode.

    private static final int DEFAULT_TEXT_CACHE_SIZE = 100;

        mCurrentCursorPosition = end;

        final CharSequence textBeforeCursor =

                getTextBeforeCursor(DEFAULT_TEXT_CACHE_SIZE + (end - start), 0);

        mCommittedTextBeforeComposingText.setLength(0);

        if (!TextUtils.isEmpty(textBeforeCursor)) {

            final int indexOfStartOfComposingText =

                    Math.max(textBeforeCursor.length() - (end - start), 0);

            mComposingText.append(textBeforeCursor.subSequence(indexOfStartOfComposingText,

                    textBeforeCursor.length()));

        mCommittedTextBeforeComposingText.setLength(0);

            mCommittedTextBeforeComposingText.append(

                    textBeforeCursor.subSequence(0, indexOfStartOfComposingText));

        }

        if (null != mIC) {

            mIC.setComposingRegion(start, end);

        }

        return (r == null) ? null : r.mWord;

    }

    private int getCursorPosition() {

        mIC = mParent.getCurrentInputConnection();

        if (null == mIC) return INVALID_CURSOR_POSITION;

        final ExtractedText extracted = mIC.getExtractedText(new ExtractedTextRequest(), 0);

        if (extracted == null) {

            return INVALID_CURSOR_POSITION;

        }

        return extracted.startOffset + extracted.selectionStart;

    }

    /**

     * Returns the text surrounding the cursor.

     *