content: /*
   * Copyright (C) 2011 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.example.android.wifidirect;
  
  import android.app.ListFragment;
  import android.app.ProgressDialog;
  import android.content.Context;
  import android.content.DialogInterface;
  import android.net.wifi.p2p.WifiP2pConfig;
  import android.net.wifi.p2p.WifiP2pDevice;
  import android.net.wifi.p2p.WifiP2pDeviceList;
  import android.net.wifi.p2p.WifiP2pManager.PeerListListener;
  import android.os.Bundle;
  import android.util.Log;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.ArrayAdapter;
  import android.widget.ListView;
  import android.widget.TextView;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * A ListFragment that displays available peers on discovery and requests the
   * parent activity to handle user interaction events
   */
  public class DeviceListFragment extends ListFragment implements PeerListListener {
  
      private List<WifiP2pDevice> peers = new ArrayList<WifiP2pDevice>();
      ProgressDialog progressDialog = null;
      View mContentView = null;
      private WifiP2pDevice device;
  
      @Override
      public void onActivityCreated(Bundle savedInstanceState) {
          super.onActivityCreated(savedInstanceState);
          this.setListAdapter(new WiFiPeerListAdapter(getActivity(), R.layout.row_devices, peers));
  
      }
  
      @Override
      public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
          mContentView = inflater.inflate(R.layout.device_list, null);
          return mContentView;
      }
  
      /**
       * @return this device
       */
      public WifiP2pDevice getDevice() {
          return device;
      }
  
      private static String getDeviceStatus(int deviceStatus) {
          Log.d(WiFiDirectActivity.TAG, "Peer status :" + deviceStatus);
          switch (deviceStatus) {
              case WifiP2pDevice.AVAILABLE:
                  return "Available";
              case WifiP2pDevice.INVITED:
                  return "Invited";
              case WifiP2pDevice.CONNECTED:
                  return "Connected";
              case WifiP2pDevice.FAILED:
                  return "Failed";
              case WifiP2pDevice.UNAVAILABLE:
                  return "Unavailable";
              default:
                  return "Unknown";
  
          }
      }
  
      /**
       * Initiate a connection with the peer.
       */
      @Override
      public void onListItemClick(ListView l, View v, int position, long id) {
          WifiP2pDevice device = (WifiP2pDevice) getListAdapter().getItem(position);
          ((DeviceActionListener) getActivity()).showDetails(device);
      }
  
      /**
       * Array adapter for ListFragment that maintains WifiP2pDevice list.
       */
      private class WiFiPeerListAdapter extends ArrayAdapter<WifiP2pDevice> {
  
          private List<WifiP2pDevice> items;
  
          /**
           * @param context
           * @param textViewResourceId
           * @param objects
           */
          public WiFiPeerListAdapter(Context context, int textViewResourceId,
                  List<WifiP2pDevice> objects) {
              super(context, textViewResourceId, objects);
              items = objects;
  
          }
  
          @Override
          public View getView(int position, View convertView, ViewGroup parent) {
              View v = convertView;
              if (v == null) {
                  LayoutInflater vi = (LayoutInflater) getActivity().getSystemService(
                          Context.LAYOUT_INFLATER_SERVICE);
                  v = vi.inflate(R.layout.row_devices, null);
              }
              WifiP2pDevice device = items.get(position);
              if (device != null) {
                  TextView top = (TextView) v.findViewById(R.id.device_name);
                  TextView bottom = (TextView) v.findViewById(R.id.device_details);
                  if (top != null) {
                      top.setText(device.deviceName);
                  }
                  if (bottom != null) {
                      bottom.setText(getDeviceStatus(device.status));
                  }
              }
  
              return v;
  
          }
      }
  
      /**
       * Update UI for this device.
       * 
       * @param device WifiP2pDevice object
       */
      public void updateThisDevice(WifiP2pDevice device) {
          this.device = device;
          TextView view = (TextView) mContentView.findViewById(R.id.my_name);
          view.setText(device.deviceName);
          view = (TextView) mContentView.findViewById(R.id.my_status);
          view.setText(getDeviceStatus(device.status));
      }
  
      @Override
      public void onPeersAvailable(WifiP2pDeviceList peerList) {
          if (progressDialog != null && progressDialog.isShowing()) {
              progressDialog.dismiss();
          }
          peers.clear();
          peers.addAll(peerList.getDeviceList());
          ((WiFiPeerListAdapter) getListAdapter()).notifyDataSetChanged();
          if (peers.size() == 0) {
              Log.d(WiFiDirectActivity.TAG, "No devices found");
              return;
          }
  
      }
  
      public void clearPeers() {
          peers.clear();
          ((WiFiPeerListAdapter) getListAdapter()).notifyDataSetChanged();
      }
  
      /**
       * 
       */
      public void onInitiateDiscovery() {
          if (progressDialog != null && progressDialog.isShowing()) {
              progressDialog.dismiss();
          }
          progressDialog = ProgressDialog.show(getActivity(), "Press back to cancel", "finding peers", true,
                  true, new DialogInterface.OnCancelListener() {
  
                      @Override
                      public void onCancel(DialogInterface dialog) {
                          
                      }
                  });
      }
  
      /**
       * An interface-callback for the activity to listen to fragment interaction
       * events.
       */
      public interface DeviceActionListener {
  
          void showDetails(WifiP2pDevice device);
  
          void cancelDisconnect();
  
          void connect(WifiP2pConfig config);
  
          void disconnect();
      }
  
  }
  