Example of writing an input method for a soft keyboard. : Key « User Event « Android






Example of writing an input method for a soft keyboard.

    

//
//src\com\example\android\softkeyboard\CandidateView.java
/*
 * Copyright (C) 2008-2009 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.example.android.softkeyboard;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;

import java.util.ArrayList;
import java.util.List;

public class CandidateView extends View {

    private static final int OUT_OF_BOUNDS = -1;

    private SoftKeyboard mService;
    private List<String> mSuggestions;
    private int mSelectedIndex;
    private int mTouchX = OUT_OF_BOUNDS;
    private Drawable mSelectionHighlight;
    private boolean mTypedWordValid;
    
    private Rect mBgPadding;

    private static final int MAX_SUGGESTIONS = 32;
    private static final int SCROLL_PIXELS = 20;
    
    private int[] mWordWidth = new int[MAX_SUGGESTIONS];
    private int[] mWordX = new int[MAX_SUGGESTIONS];

    private static final int X_GAP = 10;
    
    private static final List<String> EMPTY_LIST = new ArrayList<String>();

    private int mColorNormal;
    private int mColorRecommended;
    private int mColorOther;
    private int mVerticalPadding;
    private Paint mPaint;
    private boolean mScrolled;
    private int mTargetScrollX;
    
    private int mTotalWidth;
    
    private GestureDetector mGestureDetector;

    /**
     * Construct a CandidateView for showing suggested words for completion.
     * @param context
     * @param attrs
     */
    public CandidateView(Context context) {
        super(context);
        mSelectionHighlight = context.getResources().getDrawable(
                android.R.drawable.list_selector_background);
        mSelectionHighlight.setState(new int[] {
                android.R.attr.state_enabled,
                android.R.attr.state_focused,
                android.R.attr.state_window_focused,
                android.R.attr.state_pressed
        });

        Resources r = context.getResources();
        
        setBackgroundColor(r.getColor(R.color.candidate_background));
        
        mColorNormal = r.getColor(R.color.candidate_normal);
        mColorRecommended = r.getColor(R.color.candidate_recommended);
        mColorOther = r.getColor(R.color.candidate_other);
        mVerticalPadding = r.getDimensionPixelSize(R.dimen.candidate_vertical_padding);
        
        mPaint = new Paint();
        mPaint.setColor(mColorNormal);
        mPaint.setAntiAlias(true);
        mPaint.setTextSize(r.getDimensionPixelSize(R.dimen.candidate_font_height));
        mPaint.setStrokeWidth(0);
        
        mGestureDetector = new GestureDetector(new GestureDetector.SimpleOnGestureListener() {
            @Override
            public boolean onScroll(MotionEvent e1, MotionEvent e2,
                    float distanceX, float distanceY) {
                mScrolled = true;
                int sx = getScrollX();
                sx += distanceX;
                if (sx < 0) {
                    sx = 0;
                }
                if (sx + getWidth() > mTotalWidth) {                    
                    sx -= distanceX;
                }
                mTargetScrollX = sx;
                scrollTo(sx, getScrollY());
                invalidate();
                return true;
            }
        });
        setHorizontalFadingEdgeEnabled(true);
        setWillNotDraw(false);
        setHorizontalScrollBarEnabled(false);
        setVerticalScrollBarEnabled(false);
    }
    
    /**
     * A connection back to the service to communicate with the text field
     * @param listener
     */
    public void setService(SoftKeyboard listener) {
        mService = listener;
    }
    
    @Override
    public int computeHorizontalScrollRange() {
        return mTotalWidth;
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int measuredWidth = resolveSize(50, widthMeasureSpec);
        
        // Get the desired height of the icon menu view (last row of items does
        // not have a divider below)
        Rect padding = new Rect();
        mSelectionHighlight.getPadding(padding);
        final int desiredHeight = ((int)mPaint.getTextSize()) + mVerticalPadding
                + padding.top + padding.bottom;
        
        // Maximum possible width and desired height
        setMeasuredDimension(measuredWidth,
                resolveSize(desiredHeight, heightMeasureSpec));
    }

    /**
     * If the canvas is null, then only touch calculations are performed to pick the target
     * candidate.
     */
    @Override
    protected void onDraw(Canvas canvas) {
        if (canvas != null) {
            super.onDraw(canvas);
        }
        mTotalWidth = 0;
        if (mSuggestions == null) return;
        
        if (mBgPadding == null) {
            mBgPadding = new Rect(0, 0, 0, 0);
            if (getBackground() != null) {
                getBackground().getPadding(mBgPadding);
            }
        }
        int x = 0;
        final int count = mSuggestions.size(); 
        final int height = getHeight();
        final Rect bgPadding = mBgPadding;
        final Paint paint = mPaint;
        final int touchX = mTouchX;
        final int scrollX = getScrollX();
        final boolean scrolled = mScrolled;
        final boolean typedWordValid = mTypedWordValid;
        final int y = (int) (((height - mPaint.getTextSize()) / 2) - mPaint.ascent());

        for (int i = 0; i < count; i++) {
            String suggestion = mSuggestions.get(i);
            float textWidth = paint.measureText(suggestion);
            final int wordWidth = (int) textWidth + X_GAP * 2;

            mWordX[i] = x;
            mWordWidth[i] = wordWidth;
            paint.setColor(mColorNormal);
            if (touchX + scrollX >= x && touchX + scrollX < x + wordWidth && !scrolled) {
                if (canvas != null) {
                    canvas.translate(x, 0);
                    mSelectionHighlight.setBounds(0, bgPadding.top, wordWidth, height);
                    mSelectionHighlight.draw(canvas);
                    canvas.translate(-x, 0);
                }
                mSelectedIndex = i;
            }

            if (canvas != null) {
                if ((i == 1 && !typedWordValid) || (i == 0 && typedWordValid)) {
                    paint.setFakeBoldText(true);
                    paint.setColor(mColorRecommended);
                } else if (i != 0) {
                    paint.setColor(mColorOther);
                }
                canvas.drawText(suggestion, x + X_GAP, y, paint);
                paint.setColor(mColorOther); 
                canvas.drawLine(x + wordWidth + 0.5f, bgPadding.top, 
                        x + wordWidth + 0.5f, height + 1, paint);
                paint.setFakeBoldText(false);
            }
            x += wordWidth;
        }
        mTotalWidth = x;
        if (mTargetScrollX != getScrollX()) {
            scrollToTarget();
        }
    }
    
    private void scrollToTarget() {
        int sx = getScrollX();
        if (mTargetScrollX > sx) {
            sx += SCROLL_PIXELS;
            if (sx >= mTargetScrollX) {
                sx = mTargetScrollX;
                requestLayout();
            }
        } else {
            sx -= SCROLL_PIXELS;
            if (sx <= mTargetScrollX) {
                sx = mTargetScrollX;
                requestLayout();
            }
        }
        scrollTo(sx, getScrollY());
        invalidate();
    }
    
    public void setSuggestions(List<String> suggestions, boolean completions,
            boolean typedWordValid) {
        clear();
        if (suggestions != null) {
            mSuggestions = new ArrayList<String>(suggestions);
        }
        mTypedWordValid = typedWordValid;
        scrollTo(0, 0);
        mTargetScrollX = 0;
        // Compute the total width
        onDraw(null);
        invalidate();
        requestLayout();
    }

    public void clear() {
        mSuggestions = EMPTY_LIST;
        mTouchX = OUT_OF_BOUNDS;
        mSelectedIndex = -1;
        invalidate();
    }
    
    @Override
    public boolean onTouchEvent(MotionEvent me) {

        if (mGestureDetector.onTouchEvent(me)) {
            return true;
        }

        int action = me.getAction();
        int x = (int) me.getX();
        int y = (int) me.getY();
        mTouchX = x;

        switch (action) {
        case MotionEvent.ACTION_DOWN:
            mScrolled = false;
            invalidate();
            break;
        case MotionEvent.ACTION_MOVE:
            if (y <= 0) {
                // Fling up!?
                if (mSelectedIndex >= 0) {
                    mService.pickSuggestionManually(mSelectedIndex);
                    mSelectedIndex = -1;
                }
            }
            invalidate();
            break;
        case MotionEvent.ACTION_UP:
            if (!mScrolled) {
                if (mSelectedIndex >= 0) {
                    mService.pickSuggestionManually(mSelectedIndex);
                }
            }
            mSelectedIndex = -1;
            removeHighlight();
            requestLayout();
            break;
        }
        return true;
    }
    
    /**
     * For flick through from keyboard, call this method with the x coordinate of the flick 
     * gesture.
     * @param x
     */
    public void takeSuggestionAt(float x) {
        mTouchX = (int) x;
        // To detect candidate
        onDraw(null);
        if (mSelectedIndex >= 0) {
            mService.pickSuggestionManually(mSelectedIndex);
        }
        invalidate();
    }

    private void removeHighlight() {
        mTouchX = OUT_OF_BOUNDS;
        invalidate();
    }
}



//src\com\example\android\softkeyboard\LatinKeyboard.java
/*
 * Copyright (C) 2008-2009 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.example.android.softkeyboard;

import android.content.Context;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.Keyboard.Key;
import android.inputmethodservice.Keyboard.Row;
import android.view.inputmethod.EditorInfo;

public class LatinKeyboard extends Keyboard {

    private Key mEnterKey;
    
    public LatinKeyboard(Context context, int xmlLayoutResId) {
        super(context, xmlLayoutResId);
    }

    public LatinKeyboard(Context context, int layoutTemplateResId, 
            CharSequence characters, int columns, int horizontalPadding) {
        super(context, layoutTemplateResId, characters, columns, horizontalPadding);
    }

    @Override
    protected Key createKeyFromXml(Resources res, Row parent, int x, int y, 
            XmlResourceParser parser) {
        Key key = new LatinKey(res, parent, x, y, parser);
        if (key.codes[0] == 10) {
            mEnterKey = key;
        }
        return key;
    }
    
    /**
     * This looks at the ime options given by the current editor, to set the
     * appropriate label on the keyboard's enter key (if it has one).
     */
    void setImeOptions(Resources res, int options) {
        if (mEnterKey == null) {
            return;
        }
        
        switch (options&(EditorInfo.IME_MASK_ACTION|EditorInfo.IME_FLAG_NO_ENTER_ACTION)) {
            case EditorInfo.IME_ACTION_GO:
                mEnterKey.iconPreview = null;
                mEnterKey.icon = null;
                mEnterKey.label = res.getText(R.string.label_go_key);
                break;
            case EditorInfo.IME_ACTION_NEXT:
                mEnterKey.iconPreview = null;
                mEnterKey.icon = null;
                mEnterKey.label = res.getText(R.string.label_next_key);
                break;
            case EditorInfo.IME_ACTION_SEARCH:
                mEnterKey.icon = res.getDrawable(
                        R.drawable.sym_keyboard_search);
                mEnterKey.label = null;
                break;
            case EditorInfo.IME_ACTION_SEND:
                mEnterKey.iconPreview = null;
                mEnterKey.icon = null;
                mEnterKey.label = res.getText(R.string.label_send_key);
                break;
            default:
                mEnterKey.icon = res.getDrawable(
                        R.drawable.sym_keyboard_return);
                mEnterKey.label = null;
                break;
        }
    }
    
    static class LatinKey extends Keyboard.Key {
        
        public LatinKey(Resources res, Keyboard.Row parent, int x, int y, XmlResourceParser parser) {
            super(res, parent, x, y, parser);
        }
        
        /**
         * Overriding this method so that we can reduce the target area for the key that
         * closes the keyboard. 
         */
        @Override
        public boolean isInside(int x, int y) {
            return super.isInside(x, codes[0] == KEYCODE_CANCEL ? y - 10 : y);
        }
    }

}



//src\com\example\android\softkeyboard\LatinKeyboardView.java
/*
 * Copyright (C) 2008-2009 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.example.android.softkeyboard;

import android.content.Context;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView;
import android.inputmethodservice.Keyboard.Key;
import android.util.AttributeSet;

public class LatinKeyboardView extends KeyboardView {

    static final int KEYCODE_OPTIONS = -100;

    public LatinKeyboardView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public LatinKeyboardView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected boolean onLongPress(Key key) {
        if (key.codes[0] == Keyboard.KEYCODE_CANCEL) {
            getOnKeyboardActionListener().onKey(KEYCODE_OPTIONS, null);
            return true;
        } else {
            return super.onLongPress(key);
        }
    }
}



//src\com\example\android\softkeyboard\SoftKeyboard.java
/*
 * Copyright (C) 2008-2009 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.example.android.softkeyboard;

import android.inputmethodservice.InputMethodService;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView;
import android.text.method.MetaKeyKeyListener;
import android.util.Log;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;

import java.util.ArrayList;
import java.util.List;

/**
 * Example of writing an input method for a soft keyboard.  This code is
 * focused on simplicity over completeness, so it should in no way be considered
 * to be a complete soft keyboard implementation.  Its purpose is to provide
 * a basic example for how you would get started writing an input method, to
 * be fleshed out as appropriate.
 */
public class SoftKeyboard extends InputMethodService 
        implements KeyboardView.OnKeyboardActionListener {
    static final boolean DEBUG = false;
    
    /**
     * This boolean indicates the optional example code for performing
     * processing of hard keys in addition to regular text generation
     * from on-screen interaction.  It would be used for input methods that
     * perform language translations (such as converting text entered on 
     * a QWERTY keyboard to Chinese), but may not be used for input methods
     * that are primarily intended to be used for on-screen text entry.
     */
    static final boolean PROCESS_HARD_KEYS = true;
    
    private KeyboardView mInputView;
    private CandidateView mCandidateView;
    private CompletionInfo[] mCompletions;
    
    private StringBuilder mComposing = new StringBuilder();
    private boolean mPredictionOn;
    private boolean mCompletionOn;
    private int mLastDisplayWidth;
    private boolean mCapsLock;
    private long mLastShiftTime;
    private long mMetaState;
    
    private LatinKeyboard mSymbolsKeyboard;
    private LatinKeyboard mSymbolsShiftedKeyboard;
    private LatinKeyboard mQwertyKeyboard;
    
    private LatinKeyboard mCurKeyboard;
    
    private String mWordSeparators;
    
    /**
     * Main initialization of the input method component.  Be sure to call
     * to super class.
     */
    @Override public void onCreate() {
        super.onCreate();
        mWordSeparators = getResources().getString(R.string.word_separators);
    }
    
    /**
     * This is the point where you can do all of your UI initialization.  It
     * is called after creation and any configuration change.
     */
    @Override public void onInitializeInterface() {
        if (mQwertyKeyboard != null) {
            // Configuration changes can happen after the keyboard gets recreated,
            // so we need to be able to re-build the keyboards if the available
            // space has changed.
            int displayWidth = getMaxWidth();
            if (displayWidth == mLastDisplayWidth) return;
            mLastDisplayWidth = displayWidth;
        }
        mQwertyKeyboard = new LatinKeyboard(this, R.xml.qwerty);
        mSymbolsKeyboard = new LatinKeyboard(this, R.xml.symbols);
        mSymbolsShiftedKeyboard = new LatinKeyboard(this, R.xml.symbols_shift);
    }
    
    /**
     * Called by the framework when your view for creating input needs to
     * be generated.  This will be called the first time your input method
     * is displayed, and every time it needs to be re-created such as due to
     * a configuration change.
     */
    @Override public View onCreateInputView() {
        mInputView = (KeyboardView) getLayoutInflater().inflate(
                R.layout.input, null);
        mInputView.setOnKeyboardActionListener(this);
        mInputView.setKeyboard(mQwertyKeyboard);
        return mInputView;
    }

    /**
     * Called by the framework when your view for showing candidates needs to
     * be generated, like {@link #onCreateInputView}.
     */
    @Override public View onCreateCandidatesView() {
        mCandidateView = new CandidateView(this);
        mCandidateView.setService(this);
        return mCandidateView;
    }

    /**
     * This is the main point where we do our initialization of the input method
     * to begin operating on an application.  At this point we have been
     * bound to the client, and are now receiving all of the detailed information
     * about the target of our edits.
     */
    @Override public void onStartInput(EditorInfo attribute, boolean restarting) {
        super.onStartInput(attribute, restarting);
        
        // Reset our state.  We want to do this even if restarting, because
        // the underlying state of the text editor could have changed in any way.
        mComposing.setLength(0);
        updateCandidates();
        
        if (!restarting) {
            // Clear shift states.
            mMetaState = 0;
        }
        
        mPredictionOn = false;
        mCompletionOn = false;
        mCompletions = null;
        
        // We are now going to initialize our state based on the type of
        // text being edited.
        switch (attribute.inputType&EditorInfo.TYPE_MASK_CLASS) {
            case EditorInfo.TYPE_CLASS_NUMBER:
            case EditorInfo.TYPE_CLASS_DATETIME:
                // Numbers and dates default to the symbols keyboard, with
                // no extra features.
                mCurKeyboard = mSymbolsKeyboard;
                break;
                
            case EditorInfo.TYPE_CLASS_PHONE:
                // Phones will also default to the symbols keyboard, though
                // often you will want to have a dedicated phone keyboard.
                mCurKeyboard = mSymbolsKeyboard;
                break;
                
            case EditorInfo.TYPE_CLASS_TEXT:
                // This is general text editing.  We will default to the
                // normal alphabetic keyboard, and assume that we should
                // be doing predictive text (showing candidates as the
                // user types).
                mCurKeyboard = mQwertyKeyboard;
                mPredictionOn = true;
                
                // We now look for a few special variations of text that will
                // modify our behavior.
                int variation = attribute.inputType &  EditorInfo.TYPE_MASK_VARIATION;
                if (variation == EditorInfo.TYPE_TEXT_VARIATION_PASSWORD ||
                        variation == EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) {
                    // Do not display predictions / what the user is typing
                    // when they are entering a password.
                    mPredictionOn = false;
                }
                
                if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 
                        || variation == EditorInfo.TYPE_TEXT_VARIATION_URI
                        || variation == EditorInfo.TYPE_TEXT_VARIATION_FILTER) {
                    // Our predictions are not useful for e-mail addresses
                    // or URIs.
                    mPredictionOn = false;
                }
                
                if ((attribute.inputType&EditorInfo.TYPE_TEXT_FLAG_AUTO_COMPLETE) != 0) {
                    // If this is an auto-complete text view, then our predictions
                    // will not be shown and instead we will allow the editor
                    // to supply their own.  We only show the editor's
                    // candidates when in fullscreen mode, otherwise relying
                    // own it displaying its own UI.
                    mPredictionOn = false;
                    mCompletionOn = isFullscreenMode();
                }
                
                // We also want to look at the current state of the editor
                // to decide whether our alphabetic keyboard should start out
                // shifted.
                updateShiftKeyState(attribute);
                break;
                
            default:
                // For all unknown input types, default to the alphabetic
                // keyboard with no special features.
                mCurKeyboard = mQwertyKeyboard;
                updateShiftKeyState(attribute);
        }
        
        // Update the label on the enter key, depending on what the application
        // says it will do.
        mCurKeyboard.setImeOptions(getResources(), attribute.imeOptions);
    }

    /**
     * This is called when the user is done editing a field.  We can use
     * this to reset our state.
     */
    @Override public void onFinishInput() {
        super.onFinishInput();
        
        // Clear current composing text and candidates.
        mComposing.setLength(0);
        updateCandidates();
        
        // We only hide the candidates window when finishing input on
        // a particular editor, to avoid popping the underlying application
        // up and down if the user is entering text into the bottom of
        // its window.
        setCandidatesViewShown(false);
        
        mCurKeyboard = mQwertyKeyboard;
        if (mInputView != null) {
            mInputView.closing();
        }
    }
    
    @Override public void onStartInputView(EditorInfo attribute, boolean restarting) {
        super.onStartInputView(attribute, restarting);
        // Apply the selected keyboard to the input view.
        mInputView.setKeyboard(mCurKeyboard);
        mInputView.closing();
    }
    
    /**
     * Deal with the editor reporting movement of its cursor.
     */
    @Override public void onUpdateSelection(int oldSelStart, int oldSelEnd,
            int newSelStart, int newSelEnd,
            int candidatesStart, int candidatesEnd) {
        super.onUpdateSelection(oldSelStart, oldSelEnd, newSelStart, newSelEnd,
                candidatesStart, candidatesEnd);
        
        // If the current selection in the text view changes, we should
        // clear whatever candidate text we have.
        if (mComposing.length() > 0 && (newSelStart != candidatesEnd
                || newSelEnd != candidatesEnd)) {
            mComposing.setLength(0);
            updateCandidates();
            InputConnection ic = getCurrentInputConnection();
            if (ic != null) {
                ic.finishComposingText();
            }
        }
    }

    /**
     * This tells us about completions that the editor has determined based
     * on the current text in it.  We want to use this in fullscreen mode
     * to show the completions ourself, since the editor can not be seen
     * in that situation.
     */
    @Override public void onDisplayCompletions(CompletionInfo[] completions) {
        if (mCompletionOn) {
            mCompletions = completions;
            if (completions == null) {
                setSuggestions(null, false, false);
                return;
            }
            
            List<String> stringList = new ArrayList<String>();
            for (int i=0; i<(completions != null ? completions.length : 0); i++) {
                CompletionInfo ci = completions[i];
                if (ci != null) stringList.add(ci.getText().toString());
            }
            setSuggestions(stringList, true, true);
        }
    }
    
    /**
     * This translates incoming hard key events in to edit operations on an
     * InputConnection.  It is only needed when using the
     * PROCESS_HARD_KEYS option.
     */
    private boolean translateKeyDown(int keyCode, KeyEvent event) {
        mMetaState = MetaKeyKeyListener.handleKeyDown(mMetaState,
                keyCode, event);
        int c = event.getUnicodeChar(MetaKeyKeyListener.getMetaState(mMetaState));
        mMetaState = MetaKeyKeyListener.adjustMetaAfterKeypress(mMetaState);
        InputConnection ic = getCurrentInputConnection();
        if (c == 0 || ic == null) {
            return false;
        }
        
        boolean dead = false;

        if ((c & KeyCharacterMap.COMBINING_ACCENT) != 0) {
            dead = true;
            c = c & KeyCharacterMap.COMBINING_ACCENT_MASK;
        }
        
        if (mComposing.length() > 0) {
            char accent = mComposing.charAt(mComposing.length() -1 );
            int composed = KeyEvent.getDeadChar(accent, c);

            if (composed != 0) {
                c = composed;
                mComposing.setLength(mComposing.length()-1);
            }
        }
        
        onKey(c, null);
        
        return true;
    }
    
    /**
     * Use this to monitor key events being delivered to the application.
     * We get first crack at them, and can either resume them or let them
     * continue to the app.
     */
    @Override public boolean onKeyDown(int keyCode, KeyEvent event) {
        switch (keyCode) {
            case KeyEvent.KEYCODE_BACK:
                // The InputMethodService already takes care of the back
                // key for us, to dismiss the input method if it is shown.
                // However, our keyboard could be showing a pop-up window
                // that back should dismiss, so we first allow it to do that.
                if (event.getRepeatCount() == 0 && mInputView != null) {
                    if (mInputView.handleBack()) {
                        return true;
                    }
                }
                break;
                
            case KeyEvent.KEYCODE_DEL:
                // Special handling of the delete key: if we currently are
                // composing text for the user, we want to modify that instead
                // of let the application to the delete itself.
                if (mComposing.length() > 0) {
                    onKey(Keyboard.KEYCODE_DELETE, null);
                    return true;
                }
                break;
                
            case KeyEvent.KEYCODE_ENTER:
                // Let the underlying text editor always handle these.
                return false;
                
            default:
                // For all other keys, if we want to do transformations on
                // text being entered with a hard keyboard, we need to process
                // it and do the appropriate action.
                if (PROCESS_HARD_KEYS) {
                    if (keyCode == KeyEvent.KEYCODE_SPACE
                            && (event.getMetaState()&KeyEvent.META_ALT_ON) != 0) {
                        // A silly example: in our input method, Alt+Space
                        // is a shortcut for 'android' in lower case.
                        InputConnection ic = getCurrentInputConnection();
                        if (ic != null) {
                            // First, tell the editor that it is no longer in the
                            // shift state, since we are consuming this.
                            ic.clearMetaKeyStates(KeyEvent.META_ALT_ON);
                            keyDownUp(KeyEvent.KEYCODE_A);
                            keyDownUp(KeyEvent.KEYCODE_N);
                            keyDownUp(KeyEvent.KEYCODE_D);
                            keyDownUp(KeyEvent.KEYCODE_R);
                            keyDownUp(KeyEvent.KEYCODE_O);
                            keyDownUp(KeyEvent.KEYCODE_I);
                            keyDownUp(KeyEvent.KEYCODE_D);
                            // And we consume this event.
                            return true;
                        }
                    }
                    if (mPredictionOn && translateKeyDown(keyCode, event)) {
                        return true;
                    }
                }
        }
        
        return super.onKeyDown(keyCode, event);
    }

    /**
     * Use this to monitor key events being delivered to the application.
     * We get first crack at them, and can either resume them or let them
     * continue to the app.
     */
    @Override public boolean onKeyUp(int keyCode, KeyEvent event) {
        // If we want to do transformations on text being entered with a hard
        // keyboard, we need to process the up events to update the meta key
        // state we are tracking.
        if (PROCESS_HARD_KEYS) {
            if (mPredictionOn) {
                mMetaState = MetaKeyKeyListener.handleKeyUp(mMetaState,
                        keyCode, event);
            }
        }
        
        return super.onKeyUp(keyCode, event);
    }

    /**
     * Helper function to commit any text being composed in to the editor.
     */
    private void commitTyped(InputConnection inputConnection) {
        if (mComposing.length() > 0) {
            inputConnection.commitText(mComposing, mComposing.length());
            mComposing.setLength(0);
            updateCandidates();
        }
    }

    /**
     * Helper to update the shift state of our keyboard based on the initial
     * editor state.
     */
    private void updateShiftKeyState(EditorInfo attr) {
        if (attr != null 
                && mInputView != null && mQwertyKeyboard == mInputView.getKeyboard()) {
            int caps = 0;
            EditorInfo ei = getCurrentInputEditorInfo();
            if (ei != null && ei.inputType != EditorInfo.TYPE_NULL) {
                caps = getCurrentInputConnection().getCursorCapsMode(attr.inputType);
            }
            mInputView.setShifted(mCapsLock || caps != 0);
        }
    }
    
    /**
     * Helper to determine if a given character code is alphabetic.
     */
    private boolean isAlphabet(int code) {
        if (Character.isLetter(code)) {
            return true;
        } else {
            return false;
        }
    }
    
    /**
     * Helper to send a key down / key up pair to the current editor.
     */
    private void keyDownUp(int keyEventCode) {
        getCurrentInputConnection().sendKeyEvent(
                new KeyEvent(KeyEvent.ACTION_DOWN, keyEventCode));
        getCurrentInputConnection().sendKeyEvent(
                new KeyEvent(KeyEvent.ACTION_UP, keyEventCode));
    }
    
    /**
     * Helper to send a character to the editor as raw key events.
     */
    private void sendKey(int keyCode) {
        switch (keyCode) {
            case '\n':
                keyDownUp(KeyEvent.KEYCODE_ENTER);
                break;
            default:
                if (keyCode >= '0' && keyCode <= '9') {
                    keyDownUp(keyCode - '0' + KeyEvent.KEYCODE_0);
                } else {
                    getCurrentInputConnection().commitText(String.valueOf((char) keyCode), 1);
                }
                break;
        }
    }

    // Implementation of KeyboardViewListener

    public void onKey(int primaryCode, int[] keyCodes) {
        if (isWordSeparator(primaryCode)) {
            // Handle separator
            if (mComposing.length() > 0) {
                commitTyped(getCurrentInputConnection());
            }
            sendKey(primaryCode);
            updateShiftKeyState(getCurrentInputEditorInfo());
        } else if (primaryCode == Keyboard.KEYCODE_DELETE) {
            handleBackspace();
        } else if (primaryCode == Keyboard.KEYCODE_SHIFT) {
            handleShift();
        } else if (primaryCode == Keyboard.KEYCODE_CANCEL) {
            handleClose();
            return;
        } else if (primaryCode == LatinKeyboardView.KEYCODE_OPTIONS) {
            // Show a menu or somethin'
        } else if (primaryCode == Keyboard.KEYCODE_MODE_CHANGE
                && mInputView != null) {
            Keyboard current = mInputView.getKeyboard();
            if (current == mSymbolsKeyboard || current == mSymbolsShiftedKeyboard) {
                current = mQwertyKeyboard;
            } else {
                current = mSymbolsKeyboard;
            }
            mInputView.setKeyboard(current);
            if (current == mSymbolsKeyboard) {
                current.setShifted(false);
            }
        } else {
            handleCharacter(primaryCode, keyCodes);
        }
    }

    public void onText(CharSequence text) {
        InputConnection ic = getCurrentInputConnection();
        if (ic == null) return;
        ic.beginBatchEdit();
        if (mComposing.length() > 0) {
            commitTyped(ic);
        }
        ic.commitText(text, 0);
        ic.endBatchEdit();
        updateShiftKeyState(getCurrentInputEditorInfo());
    }

    /**
     * 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());
                setSuggestions(list, true, true);
            } else {
                setSuggestions(null, false, false);
            }
        }
    }
    
    public void setSuggestions(List<String> suggestions, boolean completions,
            boolean typedWordValid) {
        if (suggestions != null && suggestions.size() > 0) {
            setCandidatesViewShown(true);
        } else if (isExtractViewShown()) {
            setCandidatesViewShown(true);
        }
        if (mCandidateView != null) {
            mCandidateView.setSuggestions(suggestions, completions, typedWordValid);
        }
    }
    
    private void handleBackspace() {
        final int length = mComposing.length();
        if (length > 1) {
            mComposing.delete(length - 1, length);
            getCurrentInputConnection().setComposingText(mComposing, 1);
            updateCandidates();
        } else if (length > 0) {
            mComposing.setLength(0);
            getCurrentInputConnection().commitText("", 0);
            updateCandidates();
        } else {
            keyDownUp(KeyEvent.KEYCODE_DEL);
        }
        updateShiftKeyState(getCurrentInputEditorInfo());
    }

    private void handleShift() {
        if (mInputView == null) {
            return;
        }
        
        Keyboard currentKeyboard = mInputView.getKeyboard();
        if (mQwertyKeyboard == currentKeyboard) {
            // Alphabet keyboard
            checkToggleCapsLock();
            mInputView.setShifted(mCapsLock || !mInputView.isShifted());
        } else if (currentKeyboard == mSymbolsKeyboard) {
            mSymbolsKeyboard.setShifted(true);
            mInputView.setKeyboard(mSymbolsShiftedKeyboard);
            mSymbolsShiftedKeyboard.setShifted(true);
        } else if (currentKeyboard == mSymbolsShiftedKeyboard) {
            mSymbolsShiftedKeyboard.setShifted(false);
            mInputView.setKeyboard(mSymbolsKeyboard);
            mSymbolsKeyboard.setShifted(false);
        }
    }
    
    private void handleCharacter(int primaryCode, int[] keyCodes) {
        if (isInputViewShown()) {
            if (mInputView.isShifted()) {
                primaryCode = Character.toUpperCase(primaryCode);
            }
        }
        if (isAlphabet(primaryCode) && mPredictionOn) {
            mComposing.append((char) primaryCode);
            getCurrentInputConnection().setComposingText(mComposing, 1);
            updateShiftKeyState(getCurrentInputEditorInfo());
            updateCandidates();
        } else {
            getCurrentInputConnection().commitText(
                    String.valueOf((char) primaryCode), 1);
        }
    }

    private void handleClose() {
        commitTyped(getCurrentInputConnection());
        requestHideSelf(0);
        mInputView.closing();
    }

    private void checkToggleCapsLock() {
        long now = System.currentTimeMillis();
        if (mLastShiftTime + 800 > now) {
            mCapsLock = !mCapsLock;
            mLastShiftTime = 0;
        } else {
            mLastShiftTime = now;
        }
    }
    
    private String getWordSeparators() {
        return mWordSeparators;
    }
    
    public boolean isWordSeparator(int code) {
        String separators = getWordSeparators();
        return separators.contains(String.valueOf((char)code));
    }

    public void pickDefaultCandidate() {
        pickSuggestionManually(0);
    }
    
    public void pickSuggestionManually(int index) {
        if (mCompletionOn && mCompletions != null && index >= 0
                && index < mCompletions.length) {
            CompletionInfo ci = mCompletions[index];
            getCurrentInputConnection().commitCompletion(ci);
            if (mCandidateView != null) {
                mCandidateView.clear();
            }
            updateShiftKeyState(getCurrentInputEditorInfo());
        } else if (mComposing.length() > 0) {
            // If we were generating candidate suggestions for the current
            // text, we would commit one of them here.  But for this sample,
            // we will just commit the current text.
            commitTyped(getCurrentInputConnection());
        }
    }
    
    public void swipeRight() {
        if (mCompletionOn) {
            pickDefaultCandidate();
        }
    }
    
    public void swipeLeft() {
        handleBackspace();
    }

    public void swipeDown() {
        handleClose();
    }

    public void swipeUp() {
    }
    
    public void onPress(int primaryCode) {
    }
    
    public void onRelease(int primaryCode) {
    }
}



//
//res\layout\input.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* 
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->

<com.example.android.softkeyboard.LatinKeyboardView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/keyboard"
        android:layout_alignParentBottom="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />



//
//res\values\colors.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* 
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->
<resources>
    <color name="candidate_normal">#FF000000</color>
    <color name="candidate_recommended">#FFE35900</color>
    <color name="candidate_other">#ff808080</color>
    <color name="candidate_background">#bbffffff</color>
</resources>



//res\values\dimens.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* 
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->

<resources>
    <dimen name="key_height">50dip</dimen>
    <dimen name="candidate_font_height">16sp</dimen>
    <dimen name="candidate_vertical_padding">6sp</dimen>
</resources>



//res\values\strings.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/*
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
**     http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
    <!-- Title for Latin keyboard  -->
    <string name="ime_name">Sample Soft Keyboard</string>

    <!-- Symbols that are commonly considered word separators in this language -->
    <string name="word_separators">\u0020.,;:!?\n()[]*&amp;@{}/&lt;&gt;_+=|&quot;</string>
    
    <!-- Labels on soft keys -->
    <string name="label_go_key">Go</string>
    <string name="label_next_key">Next</string>
    <string name="label_send_key">Send</string>
</resources>



//
//res\values-land\dimens.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* 
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->

<resources>
    <dimen name="key_height">46dip</dimen>
</resources>



//
//res\xml\method.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/**
 * Copyright (c) 2008, The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 *
 *     http://www.apache.org/licenses/LICENSE-2.0 
 *
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 */
-->

<!-- The attributes in this XML file provide configuration information -->
<!-- for the Search Manager. -->

<input-method xmlns:android="http://schemas.android.com/apk/res/android" />



//res\xml\qwerty.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* 
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->

<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
    android:keyWidth="10%p"
    android:horizontalGap="0px"
    android:verticalGap="0px"
    android:keyHeight="@dimen/key_height"
    >

    <Row>
        <Key android:codes="113" android:keyLabel="q" android:keyEdgeFlags="left"/>
        <Key android:codes="119" android:keyLabel="w"/>
        <Key android:codes="101" android:keyLabel="e"/>
        <Key android:codes="114" android:keyLabel="r"/>
        <Key android:codes="116" android:keyLabel="t"/>
        <Key android:codes="121" android:keyLabel="y"/>
        <Key android:codes="117" android:keyLabel="u"/>
        <Key android:codes="105" android:keyLabel="i"/>
        <Key android:codes="111" android:keyLabel="o"/>
        <Key android:codes="112" android:keyLabel="p" android:keyEdgeFlags="right"/>
    </Row>
    
    <Row>
        <Key android:codes="97" android:keyLabel="a" android:horizontalGap="5%p" 
                android:keyEdgeFlags="left"/>
        <Key android:codes="115" android:keyLabel="s"/>
        <Key android:codes="100" android:keyLabel="d"/>
        <Key android:codes="102" android:keyLabel="f"/>
        <Key android:codes="103" android:keyLabel="g"/>
        <Key android:codes="104" android:keyLabel="h"/>
        <Key android:codes="106" android:keyLabel="j"/>
        <Key android:codes="107" android:keyLabel="k"/>
        <Key android:codes="108" android:keyLabel="l" android:keyEdgeFlags="right"/>
    </Row>
    
    <Row>
        <Key android:codes="-1" android:keyIcon="@drawable/sym_keyboard_shift" 
                android:keyWidth="15%p" android:isModifier="true"
                android:isSticky="true" android:keyEdgeFlags="left"/>
        <Key android:codes="122" android:keyLabel="z"/>
        <Key android:codes="120" android:keyLabel="x"/>
        <Key android:codes="99" android:keyLabel="c"/>
        <Key android:codes="118" android:keyLabel="v"/>
        <Key android:codes="98" android:keyLabel="b"/>
        <Key android:codes="110" android:keyLabel="n"/>
        <Key android:codes="109" android:keyLabel="m"/>
        <Key android:codes="-5" android:keyIcon="@drawable/sym_keyboard_delete" 
                android:keyWidth="15%p" android:keyEdgeFlags="right"
                android:isRepeatable="true"/>
    </Row>
    
    <Row android:rowEdgeFlags="bottom">
        <Key android:codes="-3" android:keyIcon="@drawable/sym_keyboard_done" 
                android:keyWidth="20%p" android:keyEdgeFlags="left"/>
        <Key android:codes="-2" android:keyLabel="123" android:keyWidth="15%p"/>
        <Key android:codes="32" android:keyIcon="@drawable/sym_keyboard_space" 
                android:keyWidth="30%p" android:isRepeatable="true"/>
        <Key android:codes="46,44" android:keyLabel=". ,"
                android:keyWidth="15%p"/>
        <Key android:codes="10" android:keyIcon="@drawable/sym_keyboard_return" 
                android:keyWidth="20%p" android:keyEdgeFlags="right"/>
    </Row>
</Keyboard>
    



//res\xml\symbols.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* 
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->

<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
    android:keyWidth="10%p"
    android:horizontalGap="0px"
    android:verticalGap="0px"
    android:keyHeight="@dimen/key_height"
    >

    <Row>
        <Key android:codes="49" android:keyLabel="1" android:keyEdgeFlags="left"/>
        <Key android:codes="50" android:keyLabel="2"/>
        <Key android:codes="51" android:keyLabel="3"/>
        <Key android:codes="52" android:keyLabel="4"/>
        <Key android:codes="53" android:keyLabel="5"/>
        <Key android:codes="54" android:keyLabel="6"/>
        <Key android:codes="55" android:keyLabel="7"/>
        <Key android:codes="56" android:keyLabel="8"/>
        <Key android:codes="57" android:keyLabel="9"/>
        <Key android:codes="48" android:keyLabel="0" android:keyEdgeFlags="right"/>
    </Row>
    
    <Row>
        <Key android:codes="64" android:keyLabel="\@" android:keyEdgeFlags="left"/>
        <Key android:codes="35" android:keyLabel="\#"/>
        <Key android:codes="36" android:keyLabel="$"/>
        <Key android:codes="37" android:keyLabel="%"/>
        <Key android:codes="38" android:keyLabel="&amp;"/>
        <Key android:codes="42" android:keyLabel="*"/>
        <Key android:codes="45" android:keyLabel="-"/>
        <Key android:codes="61" android:keyLabel="="/>
        <Key android:codes="40" android:keyLabel="("/>
        <Key android:codes="41" android:keyLabel=")" android:keyEdgeFlags="right"/>
    </Row>
    
    <Row>
        <Key android:codes="-1" android:keyIcon="@drawable/sym_keyboard_shift"
                android:keyWidth="15%p" android:isModifier="true"
                android:isSticky="true" android:keyEdgeFlags="left"/>
        <Key android:codes="33" android:keyLabel="!" />
        <Key android:codes="34" android:keyLabel="&quot;"/>
        <Key android:codes="39" android:keyLabel="\'"/>
        <Key android:codes="58" android:keyLabel=":"/>
        <Key android:codes="59" android:keyLabel=";"/>
        <Key android:codes="47" android:keyLabel="/" />
        <Key android:codes="63" android:keyLabel="\?"/>
        <Key android:codes="-5" android:keyIcon="@drawable/sym_keyboard_delete"
                android:keyWidth="15%p" android:keyEdgeFlags="right"
                android:isRepeatable="true"/>
    </Row>
    
    <Row  android:rowEdgeFlags="bottom">
        <Key android:codes="-3" android:keyIcon="@drawable/sym_keyboard_done"
                android:keyWidth="20%p" android:keyEdgeFlags="left" />
        <Key android:codes="-2" android:keyLabel="ABC" android:keyWidth="15%p" />
        <Key android:codes="32" android:keyIcon="@drawable/sym_keyboard_space" android:keyWidth="30%p" 
                android:isRepeatable="true"/>
        <Key android:codes="44" android:keyLabel="," android:keyWidth="15%p" />
        <Key android:codes="10" android:keyIcon="@drawable/sym_keyboard_return"
                android:keyWidth="20%p" android:keyEdgeFlags="right"
                />
    </Row>
</Keyboard>



//res\xml\symbols_shift.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* 
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->

<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
    android:keyWidth="10%p"
    android:horizontalGap="0px"
    android:verticalGap="0px"
    android:keyHeight="@dimen/key_height"
    >

    <Row>
        <Key android:codes="126" android:keyLabel="" android:keyEdgeFlags="left"/>
        <Key android:codes="177" android:keyLabel=""/>
        <Key android:codes="215" android:keyLabel=""/>
        <Key android:codes="247" android:keyLabel=""/>
        <Key android:codes="8226" android:keyLabel=""/>
        <Key android:codes="176" android:keyLabel=""/>
        <Key android:codes="96" android:keyLabel="`"/>
        <Key android:codes="180" android:keyLabel=""/>
        <Key android:codes="123" android:keyLabel="{"/>
        <Key android:codes="125" android:keyLabel="}" android:keyEdgeFlags="right"/>
    </Row>
    
    <Row>
        <Key android:codes="169" android:keyLabel="" android:keyEdgeFlags="left"/>
        <Key android:codes="163" android:keyLabel=""/>
        <Key android:codes="8364" android:keyLabel=""/>
        <Key android:codes="94" android:keyLabel="^"/>
        <Key android:codes="174" android:keyLabel=""/>
        <Key android:codes="165" android:keyLabel=""/>
        <Key android:codes="95" android:keyLabel="_"/>
        <Key android:codes="43" android:keyLabel="+"/>
        <Key android:codes="91" android:keyLabel="["/>
        <Key android:codes="93" android:keyLabel="]" android:keyEdgeFlags="right"/>
    </Row>
    
    <Row>
        <Key android:codes="-1" android:keyIcon="@drawable/sym_keyboard_shift"
                android:keyWidth="15%p" android:isModifier="true"
                android:isSticky="true" android:keyEdgeFlags="left"/>
        <Key android:codes="161" android:keyLabel="" />
        <Key android:codes="60" android:keyLabel="&lt;"/>
        <Key android:codes="62" android:keyLabel="&gt;"/>
        <Key android:codes="162" android:keyLabel=""/>
        <Key android:codes="124" android:keyLabel="|"/>
        <Key android:codes="92" android:keyLabel="\\" />
        <Key android:codes="191" android:keyLabel=""/>
        <Key android:codes="-5" android:keyIcon="@drawable/sym_keyboard_delete"
                android:keyWidth="15%p" android:keyEdgeFlags="right"
                android:isRepeatable="true"/>
    </Row>
    
    <Row android:rowEdgeFlags="bottom">
        <Key android:codes="-3" android:keyIcon="@drawable/sym_keyboard_done" 
                android:keyWidth="20%p" android:keyEdgeFlags="left" />
        <Key android:codes="-2" android:keyLabel="ABC" android:keyWidth="15%p" />
        <Key android:codes="32" android:keyIcon="@drawable/sym_keyboard_space" android:keyWidth="30%p" 
                android:isRepeatable="true"/>
        <Key android:codes="8230" android:keyLabel="" android:keyWidth="15%p" />
        <Key android:codes="10" android:keyIcon="@drawable/sym_keyboard_return"
                android:keyWidth="20%p" android:keyEdgeFlags="right" />
    </Row>
</Keyboard>

   
    
    
    
  








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