samples/SoftKeyboard/src/com/example/android/softkeyboard/SoftKeyboard.java - platform/development - Git at Google

 /*
  * 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.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.WindowManager;
 import android.view.inputmethod.CompletionInfo;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;

 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;

     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 Keyboard mSymbolsKeyboard;
     private Keyboard mSymbolsShiftedKeyboard;
     private Keyboard mQwertyKeyboard;

     private String mWordSeparators;

     private void makeKeyboards() {
         // Configuration change is coming after the keyboard gets recreated. So don't rely on that.
         // If keyboards have already been made, check if we have a screen width change and
         // create the keyboard layouts again at the correct orientation
         if (mQwertyKeyboard != null) {
             WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
             int displayWidth = wm.getDefaultDisplay().getWidth();
             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);
     }

     @Override public void onCreate() {
         super.onCreate();
         makeKeyboards();
         mWordSeparators = getResources().getString(R.string.word_separators);
     }

     @Override
     public View onCreateInputView() {
         makeKeyboards();
         mInputView = (KeyboardView) getLayoutInflater().inflate(
                 R.layout.input, null);
         mInputView.setOnKeyboardActionListener(this);
         mInputView.setKeyboard(mQwertyKeyboard);
         return mInputView;
     }

     @Override
     public View onCreateCandidatesView() {
         mCandidateView = new CandidateView(this);
         mCandidateView.setService(this);
         return mCandidateView;
     }

     @Override
     public void onStartInputView(EditorInfo attribute, boolean restarting) {
         mComposing.setLength(0);
         updateCandidates();

         if (!restarting) {
             // Clear shift states.
             mMetaState = 0;
         }

         mPredictionOn = false;
         mCompletionOn = false;
         mCompletions = null;
         Keyboard keyboard;
         switch (attribute.inputType&EditorInfo.TYPE_MASK_CLASS) {
             case EditorInfo.TYPE_CLASS_NUMBER:
             case EditorInfo.TYPE_CLASS_DATETIME:
                 keyboard = mSymbolsKeyboard;
                 break;
             case EditorInfo.TYPE_CLASS_PHONE:
                 keyboard = mSymbolsKeyboard;
                 break;
             default:
                 keyboard = mQwertyKeyboard;
                 mPredictionOn = true;
                 // Make sure that passwords are not displayed in candidate view
                 int variation = attribute.inputType &  EditorInfo.TYPE_MASK_VARIATION;
                 if (variation == EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) {
                     mPredictionOn = false;
                 }
                 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
                         || variation == EditorInfo.TYPE_TEXT_VARIATION_URI) {
                     mPredictionOn = false;
                 }
                 if ((attribute.inputType&EditorInfo.TYPE_TEXT_FLAG_AUTO_COMPLETE) != 0) {
                     mPredictionOn = false;
                     mCompletionOn = isFullscreenMode();
                 }
                 updateShiftKeyState(attribute);
                 break;
         }

         if (mInputView != null) {
             mInputView.setKeyboard(keyboard);
             mInputView.closing();
         }

         mComposing.setLength(0);
         setSuggestions(null, false, false);
     }

     @Override
     public void onFinishInput() {
         super.onFinishInput();
         mComposing.setLength(0);
         updateCandidates();
         if (mInputView != null) {
             mInputView.closing();
         }
     }

     @Override
     public void onUpdateSelection(int oldSelStart, int oldSelEnd,
             int newSelStart, int newSelEnd,
             int candidatesStart, int 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();
             }
         }
     }

     @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);
         }
     }

     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;
     }

     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         switch (keyCode) {
             case KeyEvent.KEYCODE_BACK:
                 if (event.getRepeatCount() == 0 && mInputView != null) {
                     if (mInputView.handleBack()) {
                         return true;
                     }
                 }
                 break;
             case KeyEvent.KEYCODE_DEL:
                 if (mComposing.length() > 0) {
                     onKey(Keyboard.KEYCODE_DELETE, null);
                     return true;
                 }
                 break;
             default:
                 if (mPredictionOn && translateKeyDown(keyCode, event)) {
                     return true;
                 }
         }
         return super.onKeyDown(keyCode, event);
     }

     @Override
     public boolean onKeyUp(int keyCode, KeyEvent event) {
         switch (keyCode) {
             case KeyEvent.KEYCODE_DPAD_DOWN:
             case KeyEvent.KEYCODE_DPAD_UP:
             case KeyEvent.KEYCODE_DPAD_LEFT:
             case KeyEvent.KEYCODE_DPAD_RIGHT:
                 // Enable shift key and DPAD to do selections
                 if (mInputView != null && mInputView.isShown() && mInputView.isShifted()) {
                     event = new KeyEvent(event.getDownTime(), event.getEventTime(),
                             event.getAction(), event.getKeyCode(), event.getRepeatCount(),
                             KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON);
                     getCurrentInputConnection().sendKeyEvent(event);
                     return true;
                 }
                 break;
             default:
                 if (mPredictionOn) {
                     mMetaState = MetaKeyKeyListener.handleKeyUp(mMetaState,
                             keyCode, event);
                 }
         }
         return super.onKeyUp(keyCode, event);
     }

     private void commitTyped(InputConnection inputConnection) {
         if (mComposing.length() > 0) {
             inputConnection.commitText(mComposing, mComposing.length());
             mComposing.setLength(0);
             updateCandidates();
         }
     }

     public void updateShiftKeyState(EditorInfo attr) {
         if (attr != null
                 && mInputView != null && mQwertyKeyboard == mInputView.getKeyboard()) {
             int caps = getCurrentInputConnection().getCursorCapsMode(attr.inputType);
             mInputView.setShifted(mCapsLock || caps != 0);
         }
     }

     private boolean isAlphabet(int code) {
         if (Character.isLetter(code)) {
             return true;
         } else {
             return false;
         }
     }

     private void keyDownUp(int keyEventCode) {
         getCurrentInputConnection().sendKeyEvent(
                 new KeyEvent(KeyEvent.ACTION_DOWN, keyEventCode));
         getCurrentInputConnection().sendKeyEvent(
                 new KeyEvent(KeyEvent.ACTION_UP, keyEventCode));
     }

     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);
         }
     }

     /**
      * 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) {
         mCandidateView.setSuggestions(suggestions, completions, typedWordValid);
         if (suggestions != null && suggestions.size() > 0) {
             setCandidatesViewShown(true);
         } else if (isFullscreenMode()) {
             setCandidatesViewShown(true);
         } else {
             setCandidatesViewShown(false);
         }
     }

     private void handleBackspace() {
         final int length = mComposing.length();
         if (length > 1) {
             mComposing.delete(length - 1, length);
             getCurrentInputConnection().setComposingText(mComposing, mComposing.length());
             updateCandidates();
         } else if (length > 0) {
             mComposing.setLength(0);
             getCurrentInputConnection().commitText("", 0);
             updateCandidates();
         } else {
             //getCurrentInputConnection().deleteSurroundingText(1, 0);
             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, mComposing.length());
             updateShiftKeyState(getCurrentInputEditorInfo());
             updateCandidates();
         } else {
             getCurrentInputConnection().commitText(
                     String.valueOf((char) primaryCode), 0);
         }
     }

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

     private void checkToggleCapsLock() {
         long now = System.currentTimeMillis();
         if (mLastShiftTime + 800 > now) {
             mCapsLock = !mCapsLock;
             mLastShiftTime = 0;
         } else {
             mLastShiftTime = now;
         }
     }

     protected 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) { }
 }
	/*
	* 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.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.WindowManager;
	import android.view.inputmethod.CompletionInfo;
	import android.view.inputmethod.EditorInfo;
	import android.view.inputmethod.InputConnection;

	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;

	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 Keyboard mSymbolsKeyboard;
	private Keyboard mSymbolsShiftedKeyboard;
	private Keyboard mQwertyKeyboard;

	private String mWordSeparators;

	private void makeKeyboards() {
	// Configuration change is coming after the keyboard gets recreated. So don't rely on that.
	// If keyboards have already been made, check if we have a screen width change and
	// create the keyboard layouts again at the correct orientation
	if (mQwertyKeyboard != null) {
	WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
	int displayWidth = wm.getDefaultDisplay().getWidth();
	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);
	}

	@Override public void onCreate() {
	super.onCreate();
	makeKeyboards();
	mWordSeparators = getResources().getString(R.string.word_separators);
	}

	@Override
	public View onCreateInputView() {
	makeKeyboards();
	mInputView = (KeyboardView) getLayoutInflater().inflate(
	R.layout.input, null);
	mInputView.setOnKeyboardActionListener(this);
	mInputView.setKeyboard(mQwertyKeyboard);
	return mInputView;
	}

	@Override
	public View onCreateCandidatesView() {
	mCandidateView = new CandidateView(this);
	mCandidateView.setService(this);
	return mCandidateView;
	}

	@Override
	public void onStartInputView(EditorInfo attribute, boolean restarting) {
	mComposing.setLength(0);
	updateCandidates();

	if (!restarting) {
	// Clear shift states.
	mMetaState = 0;
	}

	mPredictionOn = false;
	mCompletionOn = false;
	mCompletions = null;
	Keyboard keyboard;
	switch (attribute.inputType&EditorInfo.TYPE_MASK_CLASS) {
	case EditorInfo.TYPE_CLASS_NUMBER:
	case EditorInfo.TYPE_CLASS_DATETIME:
	keyboard = mSymbolsKeyboard;
	break;
	case EditorInfo.TYPE_CLASS_PHONE:
	keyboard = mSymbolsKeyboard;
	break;
	default:
	keyboard = mQwertyKeyboard;
	mPredictionOn = true;
	// Make sure that passwords are not displayed in candidate view
	int variation = attribute.inputType & EditorInfo.TYPE_MASK_VARIATION;
	if (variation == EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) {
	mPredictionOn = false;
	}
	if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
	\|\| variation == EditorInfo.TYPE_TEXT_VARIATION_URI) {
	mPredictionOn = false;
	}
	if ((attribute.inputType&EditorInfo.TYPE_TEXT_FLAG_AUTO_COMPLETE) != 0) {
	mPredictionOn = false;
	mCompletionOn = isFullscreenMode();
	}
	updateShiftKeyState(attribute);
	break;
	}

	if (mInputView != null) {
	mInputView.setKeyboard(keyboard);
	mInputView.closing();
	}

	mComposing.setLength(0);
	setSuggestions(null, false, false);
	}

	@Override
	public void onFinishInput() {
	super.onFinishInput();
	mComposing.setLength(0);
	updateCandidates();
	if (mInputView != null) {
	mInputView.closing();
	}
	}

	@Override
	public void onUpdateSelection(int oldSelStart, int oldSelEnd,
	int newSelStart, int newSelEnd,
	int candidatesStart, int 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();
	}
	}
	}

	@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);
	}
	}

	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;
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
	switch (keyCode) {
	case KeyEvent.KEYCODE_BACK:
	if (event.getRepeatCount() == 0 && mInputView != null) {
	if (mInputView.handleBack()) {
	return true;
	}
	}
	break;
	case KeyEvent.KEYCODE_DEL:
	if (mComposing.length() > 0) {
	onKey(Keyboard.KEYCODE_DELETE, null);
	return true;
	}
	break;
	default:
	if (mPredictionOn && translateKeyDown(keyCode, event)) {
	return true;
	}
	}
	return super.onKeyDown(keyCode, event);
	}

	@Override
	public boolean onKeyUp(int keyCode, KeyEvent event) {
	switch (keyCode) {
	case KeyEvent.KEYCODE_DPAD_DOWN:
	case KeyEvent.KEYCODE_DPAD_UP:
	case KeyEvent.KEYCODE_DPAD_LEFT:
	case KeyEvent.KEYCODE_DPAD_RIGHT:
	// Enable shift key and DPAD to do selections
	if (mInputView != null && mInputView.isShown() && mInputView.isShifted()) {
	event = new KeyEvent(event.getDownTime(), event.getEventTime(),
	event.getAction(), event.getKeyCode(), event.getRepeatCount(),
	KeyEvent.META_SHIFT_LEFT_ON \| KeyEvent.META_SHIFT_ON);
	getCurrentInputConnection().sendKeyEvent(event);
	return true;
	}
	break;
	default:
	if (mPredictionOn) {
	mMetaState = MetaKeyKeyListener.handleKeyUp(mMetaState,
	keyCode, event);
	}
	}
	return super.onKeyUp(keyCode, event);
	}

	private void commitTyped(InputConnection inputConnection) {
	if (mComposing.length() > 0) {
	inputConnection.commitText(mComposing, mComposing.length());
	mComposing.setLength(0);
	updateCandidates();
	}
	}

	public void updateShiftKeyState(EditorInfo attr) {
	if (attr != null
	&& mInputView != null && mQwertyKeyboard == mInputView.getKeyboard()) {
	int caps = getCurrentInputConnection().getCursorCapsMode(attr.inputType);
	mInputView.setShifted(mCapsLock \|\| caps != 0);
	}
	}

	private boolean isAlphabet(int code) {
	if (Character.isLetter(code)) {
	return true;
	} else {
	return false;
	}
	}

	private void keyDownUp(int keyEventCode) {
	getCurrentInputConnection().sendKeyEvent(
	new KeyEvent(KeyEvent.ACTION_DOWN, keyEventCode));
	getCurrentInputConnection().sendKeyEvent(
	new KeyEvent(KeyEvent.ACTION_UP, keyEventCode));
	}

	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);
	}
	}

	/**
	* 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) {
	mCandidateView.setSuggestions(suggestions, completions, typedWordValid);
	if (suggestions != null && suggestions.size() > 0) {
	setCandidatesViewShown(true);
	} else if (isFullscreenMode()) {
	setCandidatesViewShown(true);
	} else {
	setCandidatesViewShown(false);
	}
	}

	private void handleBackspace() {
	final int length = mComposing.length();
	if (length > 1) {
	mComposing.delete(length - 1, length);
	getCurrentInputConnection().setComposingText(mComposing, mComposing.length());
	updateCandidates();
	} else if (length > 0) {
	mComposing.setLength(0);
	getCurrentInputConnection().commitText("", 0);
	updateCandidates();
	} else {
	//getCurrentInputConnection().deleteSurroundingText(1, 0);
	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, mComposing.length());
	updateShiftKeyState(getCurrentInputEditorInfo());
	updateCandidates();
	} else {
	getCurrentInputConnection().commitText(
	String.valueOf((char) primaryCode), 0);
	}
	}

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

	private void checkToggleCapsLock() {
	long now = System.currentTimeMillis();
	if (mLastShiftTime + 800 > now) {
	mCapsLock = !mCapsLock;
	mLastShiftTime = 0;
	} else {
	mLastShiftTime = now;
	}
	}

	protected 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) { }
	}