1 package com.hughes.android.dictionary;
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4 import java.io.IOException;
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5 import java.io.RandomAccessFile;
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6 import java.util.concurrent.Executor;
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7 import java.util.concurrent.Executors;
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8 import java.util.concurrent.atomic.AtomicBoolean;
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10 import android.app.ListActivity;
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11 import android.content.Intent;
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12 import android.graphics.Typeface;
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13 import android.os.Bundle;
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14 import android.os.Handler;
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15 import android.preference.PreferenceManager;
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16 import android.text.Editable;
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17 import android.text.Spannable;
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18 import android.text.TextWatcher;
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19 import android.text.style.StyleSpan;
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20 import android.util.Log;
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21 import android.view.View;
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22 import android.view.ViewGroup;
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23 import android.view.View.OnClickListener;
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24 import android.widget.BaseAdapter;
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25 import android.widget.Button;
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26 import android.widget.EditText;
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27 import android.widget.ListAdapter;
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28 import android.widget.TableLayout;
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29 import android.widget.TableRow;
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30 import android.widget.TextView;
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32 import com.hughes.android.dictionary.engine.Dictionary;
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33 import com.hughes.android.dictionary.engine.Index;
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34 import com.hughes.android.dictionary.engine.PairEntry;
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35 import com.hughes.android.dictionary.engine.RowBase;
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36 import com.hughes.android.dictionary.engine.TokenRow;
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37 import com.hughes.android.util.PersistentObjectCache;
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39 public class DictionaryActivity extends ListActivity {
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41 static final String LOG = "QuickDic";
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43 RandomAccessFile dictRaf = null;
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44 Dictionary dictionary = null;
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48 // package for test.
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49 final Handler uiHandler = new Handler();
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50 private final Executor searchExecutor = Executors.newSingleThreadExecutor();
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51 private SearchOperation currentSearchOperation = null;
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53 EditText searchText;
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57 private File wordList = null;
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58 private boolean saveOnlyFirstSubentry = false;
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60 // Visible for testing.
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61 ListAdapter indexAdapter = null;
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64 public static Intent getIntent(final int dictIndex, final int indexIndex, final String searchToken) {
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65 final Intent intent = new Intent();
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66 intent.setClassName(DictionaryActivity.class.getPackage().getName(), DictionaryActivity.class.getName());
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67 intent.putExtra(C.DICT_INDEX, dictIndex);
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68 intent.putExtra(C.INDEX_INDEX, indexIndex);
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69 intent.putExtra(C.SEARCH_TOKEN, searchToken);
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74 public void onCreate(Bundle savedInstanceState) {
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75 super.onCreate(savedInstanceState);
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77 PersistentObjectCache.init(this);
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78 QuickDicConfig quickDicConfig = PersistentObjectCache.init(
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79 this).read(C.DICTIONARY_CONFIGS, QuickDicConfig.class);
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81 final Intent intent = getIntent();
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83 final DictionaryConfig dictionaryConfig = quickDicConfig.dictionaryConfigs.get(intent.getIntExtra(C.DICT_INDEX, 0));
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85 dictRaf = new RandomAccessFile(dictionaryConfig.localFile, "r");
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86 dictionary = new Dictionary(dictRaf);
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87 } catch (IOException e) {
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88 Log.e(LOG, "Unable to load dictionary.", e);
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89 // TODO: Start up the editor.
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94 indexIndex = intent.getIntExtra(C.INDEX_INDEX, 0);
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95 index = dictionary.indices.get(indexIndex);
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96 setListAdapter(new IndexAdapter(index));
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98 setContentView(R.layout.dictionary_activity);
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99 searchText = (EditText) findViewById(R.id.SearchText);
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100 langButton = (Button) findViewById(R.id.LangButton);
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102 searchText.addTextChangedListener(new SearchTextWatcher());
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105 final Button clearSearchTextButton = (Button) findViewById(R.id.ClearSearchTextButton);
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106 clearSearchTextButton.setOnClickListener(new OnClickListener() {
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107 public void onClick(View v) {
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108 //onClearSearchTextButton(clearSearchTextButton);
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111 clearSearchTextButton.setVisibility(PreferenceManager.getDefaultSharedPreferences(this).getBoolean(
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112 getString(R.string.showClearSearchTextButtonKey), true) ? View.VISIBLE
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115 final Button langButton = (Button) findViewById(R.id.LangButton);
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116 langButton.setOnClickListener(new OnClickListener() {
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117 public void onClick(View v) {
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118 onLanguageButton();
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122 final Button upButton = (Button) findViewById(R.id.UpButton);
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123 upButton.setOnClickListener(new OnClickListener() {
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124 public void onClick(View v) {
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128 final Button downButton = (Button) findViewById(R.id.DownButton);
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129 downButton.setOnClickListener(new OnClickListener() {
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130 public void onClick(View v) {
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136 registerForContextMenu(getListView());
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138 updateLangButton();
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142 void updateLangButton() {
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143 langButton.setText(index.shortName.toUpperCase());
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149 void onLanguageButton() {
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150 // TODO: synchronized, stop search.
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152 indexIndex = (indexIndex + 1) % dictionary.indices.size();
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153 index = dictionary.indices.get(indexIndex);
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154 indexAdapter = new IndexAdapter(index);
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155 Log.d(LOG, "onLanguageButton, newLang=" + index.longName);
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156 setListAdapter(indexAdapter);
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157 updateLangButton();
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158 onSearchTextChange(searchText.getText().toString());
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161 // --------------------------------------------------------------------------
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163 // --------------------------------------------------------------------------
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165 private void searchFinished(final SearchOperation searchOperation) {
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166 if (searchOperation == this.currentSearchOperation) {
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167 setSelection(searchOperation.tokenRow.index());
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168 getListView().setSelected(true);
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172 final class SearchOperation implements Runnable {
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174 final AtomicBoolean interrupted = new AtomicBoolean(false);
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175 final String searchText;
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178 boolean failed = false;
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181 SearchOperation(final String searchText, final Index index) {
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182 this.searchText = searchText.trim();
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183 this.index = index;
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187 public void run() {
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188 tokenRow = index.findInsertionPoint(searchText, interrupted);
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189 failed = false; // TODO
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190 if (!interrupted.get()) {
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191 uiHandler.post(new Runnable() {
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193 public void run() {
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194 searchFinished(SearchOperation.this);
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202 // --------------------------------------------------------------------------
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204 // --------------------------------------------------------------------------
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206 static final class IndexAdapter extends BaseAdapter {
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210 IndexAdapter(final Index index) {
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211 this.index = index;
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215 public int getCount() {
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216 return index.rows.size();
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220 public Object getItem(int position) {
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221 return index.rows.get(position);
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225 public long getItemId(int position) {
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230 public View getView(int position, View convertView, ViewGroup parent) {
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231 final RowBase row = index.rows.get(position);
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232 if (row instanceof PairEntry.Row) {
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233 return getView((PairEntry.Row) row, parent);
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234 } else if (row instanceof TokenRow) {
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235 return getView((TokenRow) row, parent);
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237 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
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241 private View getView(PairEntry.Row row, ViewGroup parent) {
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242 final TableLayout result = new TableLayout(parent.getContext());
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243 final PairEntry entry = row.getEntry();
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244 final int rowCount = entry.pairs.length;
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245 for (int r = 0; r < rowCount; ++r) {
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246 final TableRow tableRow = new TableRow(result.getContext());
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248 TextView column1 = new TextView(tableRow.getContext());
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249 TextView column2 = new TextView(tableRow.getContext());
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250 final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
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251 layoutParams.weight = 0.5f;
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254 final TextView spacer = new TextView(tableRow.getContext());
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255 spacer.setText(" • ");
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256 tableRow.addView(spacer);
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258 tableRow.addView(column1, layoutParams);
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260 final TextView spacer = new TextView(tableRow.getContext());
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261 spacer.setText(" • ");
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262 tableRow.addView(spacer);
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264 tableRow.addView(column2, layoutParams);
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266 column1.setWidth(1);
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267 column2.setWidth(1);
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269 // TODO: color words by gender
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270 final String col1Text = index.swapPairEntries ? entry.pairs[r].lang2 : entry.pairs[r].lang1;
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271 column1.setText(col1Text, TextView.BufferType.SPANNABLE);
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272 final Spannable col1Spannable = (Spannable) column1.getText();
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275 final String token = row.getTokenRow(true).getToken();
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276 while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
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277 col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos,
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278 startPos + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
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279 startPos += token.length();
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282 final String col2Text = index.swapPairEntries ? entry.pairs[r].lang1 : entry.pairs[r].lang2;
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283 column2.setText(col2Text, TextView.BufferType.NORMAL);
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285 result.addView(tableRow);
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291 private View getView(TokenRow row, ViewGroup parent) {
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292 final TextView textView = new TextView(parent.getContext());
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293 textView.setText(row.getToken());
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294 textView.setTextSize(20);
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300 // --------------------------------------------------------------------------
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302 // --------------------------------------------------------------------------
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304 void onSearchTextChange(final String searchText) {
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305 Log.d(LOG, "onSearchTextChange: " + searchText);
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306 if (currentSearchOperation != null) {
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307 currentSearchOperation.interrupted.set(true);
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309 currentSearchOperation = new SearchOperation(searchText, index);
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310 searchExecutor.execute(currentSearchOperation);
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313 private class SearchTextWatcher implements TextWatcher {
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314 public void afterTextChanged(final Editable searchTextEditable) {
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315 Log.d(LOG, "Search text changed: " + searchText.getText());
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316 if (searchText.hasFocus()) {
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317 // If they were typing to cause the change, update the UI.
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318 onSearchTextChange(searchText.getText().toString());
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322 public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
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326 public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
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