Android Open Source - zxingfragmentlib Title Retriever






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Back to project page zxingfragmentlib.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright 2012 ZXing authors//from   www  . j a  v a2  s .com
 *
 * 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.google.zxing.client.android.result.supplement;

import android.widget.TextView;
import com.google.zxing.client.android.HttpHelper;
import com.google.zxing.client.android.history.HistoryManager;
import com.google.zxing.client.result.URIParsedResult;

import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Retrieves the title of a web page as supplemental info.
 *
 * @author Sean Owen
 */
final class TitleRetriever extends SupplementalInfoRetriever {

  private static final Pattern TITLE_PATTERN = Pattern.compile("<title>([^<]+)");
  private static final int MAX_TITLE_LEN = 100;

  private final String httpUrl;

  TitleRetriever(TextView textView, URIParsedResult result, HistoryManager historyManager) {
    super(textView, historyManager);
    this.httpUrl = result.getURI();
  }

  @Override
  void retrieveSupplementalInfo() {
    CharSequence contents;
    try {
      contents = HttpHelper.downloadViaHttp(httpUrl, HttpHelper.ContentType.HTML, 4096);
    } catch (IOException ioe) {
      // ignore this
      return;
    }
    if (contents != null && contents.length() > 0) {
      Matcher m = TITLE_PATTERN.matcher(contents);
      if (m.find()) {
        String title = m.group(1);
        if (title != null && !title.isEmpty()) {
          if (title.length() > MAX_TITLE_LEN) {
            title = title.substring(0, MAX_TITLE_LEN) + "...";
          }
          append(httpUrl, null, new String[] {title}, httpUrl);
        }
      }
    }
  }

}




Java Source Code List

com.google.zxing.client.android.AmbientLightManager.java
com.google.zxing.client.android.BeepManager.java
com.google.zxing.client.android.Contents.java
com.google.zxing.client.android.DecodeFormatManager.java
com.google.zxing.client.android.DecodeHintManager.java
com.google.zxing.client.android.FinishListener.java
com.google.zxing.client.android.HelpActivity.java
com.google.zxing.client.android.HttpHelper.java
com.google.zxing.client.android.InactivityTimer.java
com.google.zxing.client.android.IntentSource.java
com.google.zxing.client.android.Intents.java
com.google.zxing.client.android.LocaleManager.java
com.google.zxing.client.android.PreferencesActivity.java
com.google.zxing.client.android.PreferencesFragment.java
com.google.zxing.client.android.ScanFromWebPageManager.java
com.google.zxing.client.android.ViewfinderResultPointCallback.java
com.google.zxing.client.android.ViewfinderView.java
com.google.zxing.client.android.book.BrowseBookListener.java
com.google.zxing.client.android.book.SearchBookContentsActivity.java
com.google.zxing.client.android.book.SearchBookContentsAdapter.java
com.google.zxing.client.android.book.SearchBookContentsListItem.java
com.google.zxing.client.android.book.SearchBookContentsResult.java
com.google.zxing.client.android.camera.AutoFocusManager.java
com.google.zxing.client.android.camera.CameraConfigurationManager.java
com.google.zxing.client.android.camera.CameraConfigurationUtils.java
com.google.zxing.client.android.camera.CameraManager.java
com.google.zxing.client.android.camera.FrontLightMode.java
com.google.zxing.client.android.camera.PreviewCallback.java
com.google.zxing.client.android.camera.open.OpenCameraInterface.java
com.google.zxing.client.android.clipboard.ClipboardInterface.java
com.google.zxing.client.android.encode.ContactEncoder.java
com.google.zxing.client.android.encode.EncodeActivity.java
com.google.zxing.client.android.encode.Formatter.java
com.google.zxing.client.android.encode.MECARDContactEncoder.java
com.google.zxing.client.android.encode.QRCodeEncoder.java
com.google.zxing.client.android.encode.VCardContactEncoder.java
com.google.zxing.client.android.encode.VCardFieldFormatter.java
com.google.zxing.client.android.encode.VCardTelDisplayFormatter.java
com.google.zxing.client.android.history.DBHelper.java
com.google.zxing.client.android.history.HistoryActivity.java
com.google.zxing.client.android.history.HistoryItemAdapter.java
com.google.zxing.client.android.history.HistoryItem.java
com.google.zxing.client.android.history.HistoryManager.java
com.google.zxing.client.android.result.AddressBookResultHandler.java
com.google.zxing.client.android.result.CalendarResultHandler.java
com.google.zxing.client.android.result.EmailAddressResultHandler.java
com.google.zxing.client.android.result.GeoResultHandler.java
com.google.zxing.client.android.result.ISBNResultHandler.java
com.google.zxing.client.android.result.ProductResultHandler.java
com.google.zxing.client.android.result.ResultButtonListener.java
com.google.zxing.client.android.result.ResultHandlerFactory.java
com.google.zxing.client.android.result.ResultHandler.java
com.google.zxing.client.android.result.SMSResultHandler.java
com.google.zxing.client.android.result.TelResultHandler.java
com.google.zxing.client.android.result.TextResultHandler.java
com.google.zxing.client.android.result.URIResultHandler.java
com.google.zxing.client.android.result.WifiResultHandler.java
com.google.zxing.client.android.result.supplement.BookResultInfoRetriever.java
com.google.zxing.client.android.result.supplement.ProductResultInfoRetriever.java
com.google.zxing.client.android.result.supplement.SupplementalInfoRetriever.java
com.google.zxing.client.android.result.supplement.TitleRetriever.java
com.google.zxing.client.android.result.supplement.URIResultInfoRetriever.java
com.google.zxing.client.android.share.AppInfo.java
com.google.zxing.client.android.share.AppPickerActivity.java
com.google.zxing.client.android.share.BookmarkAdapter.java
com.google.zxing.client.android.share.BookmarkPickerActivity.java
com.google.zxing.client.android.share.LoadPackagesAsyncTask.java
com.google.zxing.client.android.share.ShareActivity.java
com.google.zxing.client.android.wifi.NetworkType.java
com.google.zxing.client.android.wifi.WifiConfigManager.java
com.welcu.android.zxingfragmentlib.ApplicationTest.java
com.welcu.android.zxingfragmentlib.BarCodeScannerFragment.java
com.welcu.android.zxingfragmentlib.BarCodeScannerHandler.java
com.welcu.android.zxingfragmentlib.DecodeHandler.java
com.welcu.android.zxingfragmentlib.DecodeThread.java
com.welcu.android.zxingfragmentlib.IConstants.java
com.welcu.android.zxingfragmentlib.IZXingConstants.java
com.welcu.android.zxingfragmentlibsample.BarCodeContainerFragment.java
com.welcu.android.zxingfragmentlibsample.LauncherActivity.java
com.welcu.android.zxingfragmentlibsample.SampleActivity.java
com.welcu.android.zxingfragmentlibsample.SampleFragment.java
com.welcu.android.zxingfragmentlibsample.SampleNestedFragmentActivity.java
com.welcu.android.zxingfragmentlibsample.SampleStretchedActivity.java
com.welcu.android.zxingfragmentlibsample.SampleStretchedFragment.java
com.welcu.android.zxingfragmentsample.sample.ApplicationTest.java