Java tutorial
/* * 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.alanddev.gmscall.fragment; 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.support.v4.app.ListFragment; 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 com.alanddev.gmscall.R; import com.alanddev.gmscall.ui.MainActivity; 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 { public static List<WifiP2pDevice> peers = new ArrayList<WifiP2pDevice>(); public static ProgressDialog progressDialog = null; View mContentView = null; private static 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(MainActivity.TAG, "Peer status :" + deviceStatus); switch (deviceStatus) { case WifiP2pDevice.AVAILABLE: //MainActivity.ghilog("Available -> No Connect", MainActivity.file_log_dis); return "Available"; case WifiP2pDevice.INVITED: return "Invited"; case WifiP2pDevice.CONNECTED: return "Connected"; case WifiP2pDevice.FAILED: //WiFiDirectActivity.ghilog("Failed Status", WiFiDirectActivity.file_log_dis); return "Failed"; case WifiP2pDevice.UNAVAILABLE: //MainActivity.ghilog("Unavailable", MainActivity.file_log_dis); return "Unavailable"; default: //MainActivity.ghilog("Unknown", MainActivity.file_log_dis); 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) getParentFragment()).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) { //if (device != null && device.deviceAddress == "0a:21:ef:09:a5:b4") { 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)); } //String name = top.getText()+""; //if (name.equals("[Phone] Galaxy J5")) //{ //name_device = name_device + ";" + device.deviceName; //System.out.println(name_device); //} //name_device = device.deviceName; } 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); //name_device = name_device + ";" + device.deviceName; //System.out.println(name_device); 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(MainActivity.TAG, "No devices found"); return; } //printList(peers); } public void printList(List<WifiP2pDevice> peers2) { for (WifiP2pDevice elem : peers2) { System.out.println(elem + " ghhfgh "); } } 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 connectpeer(String address); void disconnect(); } }