Java tutorial
/* * Copyright (C) 2008-2009 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. */ package com.samplekeyboard; import android.content.Context; import android.content.pm.ProviderInfo; import android.inputmethodservice.Keyboard; import android.inputmethodservice.Keyboard.Key; import android.inputmethodservice.KeyboardView; import android.support.v4.view.VelocityTrackerCompat; import android.util.AttributeSet; import android.util.Log; import android.view.MotionEvent; import android.view.VelocityTracker; import android.view.inputmethod.InputConnection; import android.view.inputmethod.InputMethodSubtype; public class LatinKeyboardView extends KeyboardView { private static final String DEBUG_TAG = "Velocity"; private static final String TAG = "LatinKeyboardView"; static final int KEYCODE_OPTIONS = -100; private int currentKey; SoftKeyboard mServiceKeyboard; // TODO: Move this into android.inputmethodservice.Keyboard static final int KEYCODE_LANGUAGE_SWITCH = -101; public LatinKeyboardView(Context context, AttributeSet attrs) { super(context, attrs); } public LatinKeyboardView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); mServiceKeyboard = new SoftKeyboard(); } @Override protected boolean onLongPress(Key key) { if (key.codes[0] == Keyboard.KEYCODE_CANCEL) { getOnKeyboardActionListener().onKey(KEYCODE_OPTIONS, null); return true; } else { Log.i(TAG, "key: " + key.codes[0]); return super.onLongPress(key); } } @Override public boolean onTouchEvent(MotionEvent event) { return super.onTouchEvent(event); } /* public static int getDirection(){ if(mIsDown && mIsLeft){ return -1; } else if(mIsDown && mIsRight){ return 1; } return 0; }*/ /* @Override public boolean onTouchEvent(MotionEvent event){ int index = event.getActionIndex(); int action = event.getActionMasked(); int pointerId = event.getPointerId(index); switch(action) { case MotionEvent.ACTION_DOWN: if(mVelocityTracker == null) { // Retrieve a new VelocityTracker object to watch the velocity of a motion. mVelocityTracker = VelocityTracker.obtain(); } else { // Reset the velocity tracker back to its initial state. mVelocityTracker.clear(); } // Add a user's movement to the tracker. mVelocityTracker.addMovement(event); break; case MotionEvent.ACTION_MOVE: mVelocityTracker.addMovement(event); // When you want to determine the velocity, call // computeCurrentVelocity(). Then call getXVelocity() // and getYVelocity() to retrieve the velocity for each pointer ID. mVelocityTracker.computeCurrentVelocity(1000); // Log velocity of pixels per second // Best practice to use VelocityTrackerCompat where possible. movementTracker++; Log.d("", "getX: " + event.getX()); Log.d("", "getY: " + event.getY()); Log.d("", "POINTER count: "+ event.getPointerCount()); Log.d("", "X velocity: " + VelocityTrackerCompat.getXVelocity(mVelocityTracker, pointerId)); Log.d("", "Y velocity: " + VelocityTrackerCompat.getYVelocity(mVelocityTracker, pointerId)); break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: // Return a VelocityTracker object back to be re-used by others. mVelocityTracker.recycle(); mVelocityTracker = null; break; } super.onTouchEvent(event); return false; }*/ void setSubtypeOnSpaceKey(final InputMethodSubtype subtype) { final LatinKeyboard keyboard = (LatinKeyboard) getKeyboard(); keyboard.setSpaceIcon(getResources().getDrawable(subtype.getIconResId())); invalidateAllKeys(); } /* public void setCharCount(int charCount) { this.charCount = charCount; }*/ }