The file containing the source code shown below is located in the corresponding directory in <sdk>/samples/android-<version>/...
/* * Copyright (C) 2011 The Android开源工程 * * 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.hellospellchecker; import android.app.Activity; import android.content.Context; import android.os.Build; import android.os.Bundle; import android.util.Log; import android.view.textservice.SentenceSuggestionsInfo; import android.view.textservice.SpellCheckerSession; import android.view.textservice.SuggestionsInfo; import android.view.textservice.TextInfo; import android.view.textservice.TextServicesManager; import android.view.textservice.SpellCheckerSession.SpellCheckerSessionListener; import android.widget.TextView; import java.lang.StringBuilder; public class HelloSpellCheckerActivity extends Activity implements SpellCheckerSessionListener { private static final String TAG = HelloSpellCheckerActivity.class.getSimpleName(); private static final int NOT_A_LENGTH = -1; private TextView mMainView; private SpellCheckerSession mScs; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mMainView = (TextView)findViewById(R.id.main); } private boolean isSentenceSpellCheckSupported() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN; } @Override public void onResume() { super.onResume(); final TextServicesManager tsm = (TextServicesManager) getSystemService( Context.TEXT_SERVICES_MANAGER_SERVICE); mScs = tsm.newSpellCheckerSession(null, null, this, true); if (mScs != null) { // Instantiate TextInfo for each query // TextInfo can be passed a sequence number and a cookie number to identify the result if (isSentenceSpellCheckSupported()) { // Note that getSentenceSuggestions works on JB or later. Log.d(TAG, "Sentence spellchecking supported."); mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo("tgisis")}, 3); mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo( "I wold like to here form you")}, 3); mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo("hell othere")}, 3); } else { // Note that getSuggestions() is a deprecated API. // It is recommended for an application running on Jelly Bean or later // to call getSentenceSuggestions() only. mScs.getSuggestions(new TextInfo("tgis"), 3); mScs.getSuggestions(new TextInfo("hllo"), 3); mScs.getSuggestions(new TextInfo("helloworld"), 3); } } else { Log.e(TAG, "Couldn't obtain the spell checker service."); } } @Override public void onPause() { super.onPause(); if (mScs != null) { mScs.close(); } } private void dumpSuggestionsInfoInternal( final StringBuilder sb, final SuggestionsInfo si, final int length, final int offset) { // Returned suggestions are contained in SuggestionsInfo final int len = si.getSuggestionsCount(); sb.append('\n'); for (int j = 0; j < len; ++j) { if (j != 0) { sb.append(", "); } sb.append(si.getSuggestionAt(j)); } sb.append(" (" + len + ")"); if (length != NOT_A_LENGTH) { sb.append(" length = " + length + ", offset = " + offset); } } /** * Callback for {@link SpellCheckerSession#getSuggestions(TextInfo, int)} * and {@link SpellCheckerSession#getSuggestions(TextInfo[], int, boolean)} * @param results an array of {@link SuggestionsInfo}s. * These results are suggestions for {@link TextInfo}s queried by * {@link SpellCheckerSession#getSuggestions(TextInfo, int)} or * {@link SpellCheckerSession#getSuggestions(TextInfo[], int, boolean)} */ @Override public void onGetSuggestions(final SuggestionsInfo[] arg0) { Log.d(TAG, "onGetSuggestions"); final StringBuilder sb = new StringBuilder(); for (int i = 0; i < arg0.length; ++i) { dumpSuggestionsInfoInternal(sb, arg0[i], 0, NOT_A_LENGTH); } runOnUiThread(new Runnable() { @Override public void run() { mMainView.append(sb.toString()); } }); } /** * Callback for {@link SpellCheckerSession#getSentenceSuggestions(TextInfo[], int)} * @param results an array of {@link SentenceSuggestionsInfo}s. * These results are suggestions for {@link TextInfo}s * queried by {@link SpellCheckerSession#getSentenceSuggestions(TextInfo[], int)}. */ @Override public void onGetSentenceSuggestions(final SentenceSuggestionsInfo[] arg0) { if (!isSentenceSpellCheckSupported()) { Log.e(TAG, "Sentence spell check is not supported on this platform, " + "but accidentially called."); return; } Log.d(TAG, "onGetSentenceSuggestions"); final StringBuilder sb = new StringBuilder(); for (int i = 0; i < arg0.length; ++i) { final SentenceSuggestionsInfo ssi = arg0[i]; for (int j = 0; j < ssi.getSuggestionsCount(); ++j) { dumpSuggestionsInfoInternal( sb, ssi.getSuggestionsInfoAt(j), ssi.getOffsetAt(j), ssi.getLengthAt(j)); } } runOnUiThread(new Runnable() { @Override public void run() { mMainView.append(sb.toString()); } }); } }