1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.wifidirectp2p; 18 19 import android.app.ListFragment; 20 import android.app.ProgressDialog; 21 import android.content.Context; 22 import android.content.DialogInterface; 23 import android.net.wifi.p2p.WifiP2pConfig; 24 import android.net.wifi.p2p.WifiP2pDevice; 25 import android.net.wifi.p2p.WifiP2pDeviceList; 26 import android.net.wifi.p2p.WifiP2pManager.PeerListListener; 27 import android.os.Bundle; 28 import android.util.Log; 29 import android.view.LayoutInflater; 30 import android.view.View; 31 import android.view.ViewGroup; 32 import android.widget.ArrayAdapter; 33 import android.widget.ListView; 34 import android.widget.TextView; 35 36 import java.util.ArrayList; 37 import java.util.List; 38 39 /** 40 * A ListFragment that displays available peers on discovery and requests the 41 * parent activity to handle user interaction events 42 */ 43 public class DeviceListFragment extends ListFragment implements PeerListListener { 44 45 private List<WifiP2pDevice> peers = new ArrayList<WifiP2pDevice>(); 46 ProgressDialog progressDialog = null; 47 View mContentView = null; 48 private WifiP2pDevice device; 49 50 @Override 51 public void onActivityCreated(Bundle savedInstanceState) { 52 super.onActivityCreated(savedInstanceState); 53 this.setListAdapter(new WiFiPeerListAdapter(getActivity(), R.layout.row_devices, peers)); 54 55 } 56 57 @Override 58 public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 59 mContentView = inflater.inflate(R.layout.device_list, null); 60 return mContentView; 61 } 62 63 /** 64 * @return this device 65 */ 66 public WifiP2pDevice getDevice() { 67 return device; 68 } 69 70 private static String getDeviceStatus(int deviceStatus) { 71 Log.d(MainActivity.TAG, "Peer status :" + deviceStatus); 72 switch (deviceStatus) { 73 case WifiP2pDevice.AVAILABLE: 74 return "Available"; 75 case WifiP2pDevice.INVITED: 76 return "Invited"; 77 case WifiP2pDevice.CONNECTED: 78 return "Connected"; 79 case WifiP2pDevice.FAILED: 80 return "Failed"; 81 case WifiP2pDevice.UNAVAILABLE: 82 return "Unavailable"; 83 default: 84 return "Unknown"; 85 86 } 87 } 88 89 /** 90 * Initiate a connection with the peer. 91 */ 92 @Override 93 public void onListItemClick(ListView l, View v, int position, long id) { 94 WifiP2pDevice device = (WifiP2pDevice) getListAdapter().getItem(position); 95 ((DeviceActionListener) getActivity()).showDetails(device); 96 } 97 98 /** 99 * Array adapter for ListFragment that maintains WifiP2pDevice list. 100 */ 101 private class WiFiPeerListAdapter extends ArrayAdapter<WifiP2pDevice> { 102 103 private List<WifiP2pDevice> items; 104 105 /** 106 * @param context 107 * @param textViewResourceId 108 * @param objects 109 */ 110 public WiFiPeerListAdapter(Context context, int textViewResourceId, 111 List<WifiP2pDevice> objects) { 112 super(context, textViewResourceId, objects); 113 items = objects; 114 115 } 116 117 @Override 118 public View getView(int position, View convertView, ViewGroup parent) { 119 View v = convertView; 120 if (v == null) { 121 LayoutInflater vi = (LayoutInflater) getActivity().getSystemService( 122 Context.LAYOUT_INFLATER_SERVICE); 123 v = vi.inflate(R.layout.row_devices, null); 124 } 125 WifiP2pDevice device = items.get(position); 126 if (device != null) { 127 TextView top = (TextView) v.findViewById(R.id.device_name); 128 TextView bottom = (TextView) v.findViewById(R.id.device_details); 129 if (top != null) { 130 top.setText(device.deviceName); 131 } 132 if (bottom != null) { 133 bottom.setText(getDeviceStatus(device.status)); 134 } 135 } 136 137 return v; 138 139 } 140 } 141 142 /** 143 * Update UI for this device. 144 * 145 * @param device WifiP2pDevice object 146 */ 147 public void updateThisDevice(WifiP2pDevice device) { 148 this.device = device; 149 TextView view = (TextView) mContentView.findViewById(R.id.my_name); 150 view.setText(device.deviceName); 151 view = (TextView) mContentView.findViewById(R.id.my_status); 152 view.setText(getDeviceStatus(device.status)); 153 } 154 155 @Override 156 public void onPeersAvailable(WifiP2pDeviceList peerList) { 157 if (progressDialog != null && progressDialog.isShowing()) { 158 progressDialog.dismiss(); 159 } 160 peers.clear(); 161 peers.addAll(peerList.getDeviceList()); 162 ((WiFiPeerListAdapter) getListAdapter()).notifyDataSetChanged(); 163 if (peers.size() == 0) { 164 Log.d(MainActivity.TAG, "No devices found"); 165 return; 166 } 167 168 } 169 170 public void clearPeers() { 171 peers.clear(); 172 ((WiFiPeerListAdapter) getListAdapter()).notifyDataSetChanged(); 173 } 174 175 /** 176 * 177 */ 178 public void onInitiateDiscovery() { 179 if (progressDialog != null && progressDialog.isShowing()) { 180 progressDialog.dismiss(); 181 } 182 progressDialog = ProgressDialog.show(getActivity(), "Press back to cancel", "finding peers", true, 183 true, new DialogInterface.OnCancelListener() { 184 185 @Override 186 public void onCancel(DialogInterface dialog) { 187 188 } 189 } 190 ); 191 } 192 193 /** 194 * An interface-callback for the activity to listen to fragment interaction 195 * events. 196 */ 197 public interface DeviceActionListener { 198 199 void showDetails(WifiP2pDevice device); 200 201 void cancelDisconnect(); 202 203 void connect(WifiP2pConfig config); 204 205 void disconnect(); 206 } 207 208 } 209
