Fix a bug where backspace would not delete the selection

    private WordComposer mWordComposer = new WordComposer();

    private int mCorrectionMode;

    // Keep track of the last selection range to decide if we need to show word alternatives

    private int mLastSelectionStart;

    private int mLastSelectionEnd;

    private static final int NOT_A_CURSOR_POSITION = -1;

    private int mLastSelectionStart = NOT_A_CURSOR_POSITION;

    private int mLastSelectionEnd = NOT_A_CURSOR_POSITION;

    // Whether we are expecting an onUpdateSelection event to fire. If it does when we don't

    // "expect" it, it means the user actually moved the cursor.

                // suggestion (typed word).  It's intentional to have made this

                // inconsistent with backspacing after selecting other suggestions.

                restartSuggestionsOnManuallyPickedTypedWord(ic);

            } else {

                // Here we must check whether there is a selection. If so we should remove the

                // selected text, otherwise we should just delete the character before the cursor.

                if (mLastSelectionStart != mLastSelectionEnd) {

                    final int lengthToDelete = mLastSelectionEnd - mLastSelectionStart;

                    ic.setSelection(mLastSelectionEnd, mLastSelectionEnd);

                    ic.deleteSurroundingText(lengthToDelete, 0);

                } else {

                    if (NOT_A_CURSOR_POSITION == mLastSelectionEnd) {

                        // We don't know whether there is a selection or not. We just send a false

                        // hardware key event and let TextView sort it out for us. The problem

                        // here is, this is asynchronous with respect to the input connection

                        // batch edit, so it may flicker. But this only ever happens if backspace

                        // is pressed just after the IME is invoked, and then again only once.

                        // TODO: add an API call that gets the selection indices. This is available

                        // to the IME in the general case via onUpdateSelection anyway, and would

                        // allow us to remove this race condition.

                        sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);

                    } else {

                        ic.deleteSurroundingText(1, 0);

                    }

                    if (mDeleteCount > DELETE_ACCELERATE_AT) {

                        ic.deleteSurroundingText(1, 0);

                    }

                }

                if (isSuggestionsRequested()) {

                    restartSuggestionsOnWordBeforeCursorIfAtEndOfWord(ic);

                }