WifiResultHandler.java

/*
 * Copyright (C) 2008 ZXing authors
 *
 * 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;

import android.content.Context;
import android.net.wifi.WifiManager;
import android.widget.Toast;

import com.google.zxing.client.android.CaptureActivity;

import com.google.zxing.client.android.common.executor.AsyncTaskExecInterface;
import com.google.zxing.client.android.common.executor.AsyncTaskExecManager;
import com.google.zxing.client.android.wifi.WifiConfigManager;
import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.WifiParsedResult;

/**
 * Handles address book entries.
 *
 * @author Vikram Aggarwal
 * @author Sean Owen
 */
public final class WifiResultHandler extends ResultHandler {

  private final CaptureActivity parent;
  private final AsyncTaskExecInterface taskExec;

  public WifiResultHandler(CaptureActivity activity, ParsedResult result) {
    super(activity, result);
    parent = activity;
    taskExec = new AsyncTaskExecManager().build();
  }

  @Override
  public int getButtonCount() {
    // We just need one button, and that is to configure the wireless.  This could change in the future.
    return 1;
  }

  @Override
  public int getButtonText(int index) {
    return fakeR.getId("string", "button_wifi");
  }

  @Override
  public void handleButtonPress(int index) {
    if (index == 0) {
      WifiParsedResult wifiResult = (WifiParsedResult) getResult();
      WifiManager wifiManager = (WifiManager) getActivity().getSystemService(Context.WIFI_SERVICE);
      Toast.makeText(getActivity(), fakeR.getId("string", "wifi_changing_network"), Toast.LENGTH_LONG).show();
      taskExec.execute(new WifiConfigManager(wifiManager), wifiResult);
      parent.restartPreviewAfterDelay(0L);
    }
  }

  // Display the name of the network and the network type to the user.
  @Override
  public CharSequence getDisplayContents() {
    WifiParsedResult wifiResult = (WifiParsedResult) getResult();
    StringBuilder contents = new StringBuilder(50);
    String wifiLabel = parent.getString(fakeR.getId("string", "wifi_ssid_label"));
    ParsedResult.maybeAppend(wifiLabel + '\n' + wifiResult.getSsid(), contents);
    String typeLabel = parent.getString(fakeR.getId("string", "wifi_type_label"));
    ParsedResult.maybeAppend(typeLabel + '\n' + wifiResult.getNetworkEncryption(), contents);
    return contents.toString();
  }

  @Override
  public int getDisplayTitle() {
    return fakeR.getId("string", "result_wifi");
  }
}