【移动开发】Android中WIFI开发总结（二）
搞了好几天终于有点眉目了，这里接着总结一下Android中WiFi的使用，在前面（http://smallwoniu.blog.51cto.com/3911954/1334951）我们已经简单了解了Wifi实际操作中所用到的几个主要类，今天就剖析一个WIFI搜索、创建、关闭、连接及一些简单的动画的综合案例。 首先，我们还是看一下我们项目的框架 MainActivity类：（处理wifi消息，加载UI） 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 /** * 主界面 * @author ZHF * */ public class MainActivity extends Activity implements EventHandler{ //消息事件 public static final int m_nWifiSearchTimeOut = 0 ; // 搜索超时 public static final int m_nWTScanResult = 1 ; // 搜索到wifi返回结果 public static final int m_nWTConnectResult = 2 ; // 连接上wifi热点 public static final int m_nCreateAPResult = 3 ; // 创建热点结果 public static final int m_nUserResult = 4 ; // 用户上线人数更新命令(待定) public static final int m_nWTConnected = 5 ; // 点击连接后断开wifi，3.5秒后刷新adapter //一些常量 public static final String PACKAGE_NAME = "com.zhf.wifidemo.wifi" ; //应用包名 public static final String FIRST_OPEN_KEY = "version" ; //版本号信息 public static final String WIFI_AP_HEADER = "zhf_" ; public static final String WIFI_AP_PASSWORD = "zhf12345" ; //wifi操作事件（枚举）-->方便弹出对话框处理事件 private int wFOperateEnum = WFOperateEnum.NOTHING; //三个重要的类 public WFSearchProcess m_wtSearchProcess; //WiFi搜索进度条线程 public WifiAdmin m_wiFiAdmin; //Wifi管理类 public CreateAPProcess m_createAPProcess; //创建Wifi热点线程 //相关控件 private WFSearchAnimationFrameLayout m_FrameLWTSearchAnimation; //自定义雷达动画布局 private GifView m_gifRadar; //wifi信号动画布局 private LinearLayout m_linearLCreateAP; //创建热点View private ProgressBar m_progBarCreatingAP; //创建热点进度条 private TextView m_textVPromptAP; //创建热点进度条文字 private Button m_btnBack; //左上角返回按钮 private Button m_btnSearchWF; //右上角wifi搜索按钮 private Button m_btnCreateWF; //创建wifi热点 private ListView m_listVWT; //显示信息 private LinearLayout m_LinearLDialog; //提醒对话框 private TextView m_textVContentDialog; //对话框文本内容 private Button m_btnConfirmDialog, m_btnCancelDialog; //提醒对话框上的按钮 private TextView m_textVWTPrompt; //中间文字提示 private boolean m_isFirstOpen = true ; //标记是否是第一次打开 ArrayList<ScanResult> m_listWifi = new ArrayList(); //检测到热点信息列表 private WTAdapter m_wTAdapter; //网络列表适配器 public Handler mHandler = new Handler() { public void handleMessage(android.os.Message msg) { switch (msg.what) { case m_nWifiSearchTimeOut: // 搜索超时 m_wtSearchProcess.stop(); m_FrameLWTSearchAnimation.stopAnimation(); m_listWifi.clear(); //网络列表 //设置控件 m_textVWTPrompt.setVisibility(View.VISIBLE); m_textVWTPrompt.setText( "需要重新搜索，点右上角重新搜索或创建新的热点..." ); break ; case m_nWTScanResult: //扫描到结果 m_listWifi.clear(); if (m_wiFiAdmin.mWifiManager.getScanResults() != null ) { for ( int i = 0 ; i < m_wiFiAdmin.mWifiManager.getScanResults().size(); i++) { ScanResult scanResult = m_wiFiAdmin.mWifiManager.getScanResults().get(i); //和指定连接热点比较，将其他的过滤掉！ if (scanResult.SSID.startsWith(WIFI_AP_HEADER)) { m_listWifi.add(scanResult); } } if (m_listWifi.size() > 0 ) { m_wtSearchProcess.stop(); m_FrameLWTSearchAnimation.stopAnimation(); m_textVWTPrompt.setVisibility(View.GONE); //更新列表，显示出搜索到的热点 m_wTAdapter.setData(m_listWifi); m_wTAdapter.notifyDataSetChanged(); } } break ; case m_nWTConnectResult: //连接结果 m_wTAdapter.notifyDataSetChanged(); //刷新适配器数据 break ; case m_nCreateAPResult: //创建wifi热点结果 m_createAPProcess.stop(); m_progBarCreatingAP.setVisibility(View.GONE); //旋转进度条 if ((m_wiFiAdmin.getWifiApState() == 3 || m_wiFiAdmin.getWifiApState() == 13 ) && (m_wiFiAdmin.getApSSID().startsWith(WIFI_AP_HEADER))) { //设置控件 m_textVWTPrompt.setVisibility(View.GONE); m_linearLCreateAP.setVisibility(View.VISIBLE); m_btnCreateWF.setVisibility(View.VISIBLE); m_gifRadar.setVisibility(View.VISIBLE); m_btnCreateWF.setBackgroundResource(R.drawable.x_ap_close); m_textVPromptAP.setText( "热点创建成功！" + "\n热点名：" + m_wiFiAdmin.getApSSID()+ "\n连接密码：zhf12345" ); } else { m_btnCreateWF.setVisibility(View.VISIBLE); m_btnCreateWF.setBackgroundResource(R.drawable.x_wt_create); m_textVPromptAP.setText( "热点创建失败，您可以重新创建或者搜索其它热点" ); } break ; case m_nUserResult : //更新用户上线人数 break ; case m_nWTConnected: //点击连接后断开wifi，3.5s后刷新 m_wTAdapter.notifyDataSetChanged(); break ; } }; }; @Override public void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.wt_main); //搜索Wifi m_wtSearchProcess = new WFSearchProcess( this ); //创建Wifi热点 m_createAPProcess = new CreateAPProcess( this ); //wifi管理类 m_wiFiAdmin = WifiAdmin.getInstance( this ); //初始化View initView(); } /**初始化View**/ private void initView() { // 监听广播 WIFIBroadcast.ehList.add( this ); /******************************实例化布局**************************************/ m_linearLCreateAP = (LinearLayout) findViewById(R.id.create_ap_llayout_wt_main); //创建热点View m_progBarCreatingAP = (ProgressBar) findViewById(R.id.creating_progressBar_wt_main); //创建热点进度条 m_textVPromptAP = (TextView) findViewById(R.id.prompt_ap_text_wt_main); //创建热点进度条文字 m_FrameLWTSearchAnimation = ((WFSearchAnimationFrameLayout) findViewById(R.id.search_animation_wt_main)); // 搜索时的动画 m_listVWT = ((ListView) findViewById(R.id.wt_list_wt_main)); // 搜索到的热点listView //注意此处 m_wTAdapter = new WTAdapter( this , m_listWifi); m_listVWT.setAdapter(m_wTAdapter); m_textVWTPrompt = (TextView) findViewById(R.id.wt_prompt_wt_main); //中间提醒文字 m_gifRadar = (GifView) findViewById(R.id.radar_gif_wt_main); //gif动画 //提醒对话框布局 m_LinearLDialog = (LinearLayout) findViewById(R.id.dialog_layout_wt_main); m_textVContentDialog = (TextView) findViewById(R.id.content_text_wtdialog); m_btnConfirmDialog = (Button) findViewById(R.id.confirm_btn_wtdialog); m_btnCancelDialog = (Button) findViewById(R.id.cancel_btn_wtdialog); //左上角返回键 m_btnBack = (Button) findViewById(R.id.back_btn_wt_main); m_btnBack.setOnClickListener( new OnClickListener() { @Override public void onClick(View v) { onBackPressed(); //相当于调用系统返回键，结束当前Activity } }); //右上角搜索热点按钮 m_btnSearchWF = (Button) findViewById(R.id.search_btn_wt_main); m_btnSearchWF.setOnClickListener( new OnClickListener() { @Override public void onClick(View v) { if (!m_wtSearchProcess.running) { //搜索线程没有开启 //1.当前热点或wifi连接着 WIFI_STATE_ENABLED 3 //WIFI_AP_STATE_ENABLED 13 if (m_wiFiAdmin.getWifiApState() == 3 || m_wiFiAdmin.getWifiApState() == 13 ) { wFOperateEnum = WFOperateEnum.SEARCH; //搜索wifi事件 m_LinearLDialog.setVisibility(View.VISIBLE); ///wifi提示对话框显示 m_textVContentDialog.setText( "是否关闭当前热点去搜索其他热点？" ); return ; //跳出此方法，交由对话框来处理事件 } //2.当前没有热点或wifi连接着 if (!m_wiFiAdmin.mWifiManager.isWifiEnabled()) { //如果wifi没打开 m_wiFiAdmin.OpenWifi(); } m_textVWTPrompt.setVisibility(View.VISIBLE); //中间提示文字 m_textVWTPrompt.setText( "正在搜索附近的热点..." ); m_linearLCreateAP.setVisibility(View.GONE); //创建wifi热点布局消失 m_gifRadar.setVisibility(View.GONE); //热点连接动画消失 m_btnCreateWF.setBackgroundResource(R.drawable.x_wt_create); //更改按钮文字“创建” //开始搜索wifi m_wiFiAdmin.startScan(); m_wtSearchProcess.start(); //开启搜索线程 m_FrameLWTSearchAnimation.startAnimation(); //开启波纹动画 } else { //搜索线程开启着，再次点击按钮 //重新启动 m_wtSearchProcess.stop(); m_wiFiAdmin.startScan(); //开始搜索wifi m_wtSearchProcess.start(); } } }); //中间创建wifi热点按钮 m_btnCreateWF = (Button) findViewById(R.id.create_btn_wt_main); m_btnCreateWF.setOnClickListener( new OnClickListener() { @Override public void onClick(View v) { if (m_wiFiAdmin.getWifiApState() == 4 ) { // WIFI_STATE_UNKNOWN Toast.makeText(getApplicationContext(), "您的设备不支持热点创建!" , Toast.LENGTH_SHORT).show(); return ; } if (m_wiFiAdmin.mWifiManager.isWifiEnabled()) { //目前连着wifi wFOperateEnum = WFOperateEnum.CREATE; //wifi热点创建事件 m_LinearLDialog.setVisibility(View.VISIBLE); //对话框可用 m_textVContentDialog.setText( "创建热点会关闭当前的WiFi，确认继续？" ); return ; } if ((m_wiFiAdmin.getWifiApState() == 3 || m_wiFiAdmin.getWifiApState() == 13 ) && (!m_wiFiAdmin.getApSSID().startsWith(WIFI_AP_HEADER))) { //目前连接着其他热点名 wFOperateEnum = WFOperateEnum.CREATE; //wifi热点创建事件 m_LinearLDialog.setVisibility(View.VISIBLE); m_textVContentDialog.setText( "系统热点被占用，点确定开启热点以传输文件！" ); return ; } if (((m_wiFiAdmin.getWifiApState() == 3 ) || (m_wiFiAdmin.getWifiApState() == 13 )) && (m_wiFiAdmin.getApSSID().startsWith(WIFI_AP_HEADER))) { //目前连接着自己指定的Wifi热点 wFOperateEnum = WFOperateEnum.CLOSE; //wifi热点关闭事件 m_LinearLDialog.setVisibility(View.VISIBLE); m_textVContentDialog.setText( "关闭热点会中断当前传输，您确定这么做？" ); return ; } if (m_wtSearchProcess.running) { m_wtSearchProcess.stop(); //停止线程 m_FrameLWTSearchAnimation.stopAnimation(); //停止动画 } /******************点击创建热点时没有连接wifi或热点的情况*****************************/ //关闭Wifi m_wiFiAdmin.closeWifi(); //创建热点（名字，密码，加密类型,wifi/ap类型） m_wiFiAdmin.createWifiAP(m_wiFiAdmin.createWifiInfo(WIFI_AP_HEADER + getLocalHostName(), WIFI_AP_PASSWORD, 3 , "ap" ), true ); m_createAPProcess.start(); //开启创建热点线程 //将wifi信息列表设置到listview中 m_listWifi.clear(); m_wTAdapter.setData(m_listWifi); m_wTAdapter.notifyDataSetChanged(); //设置布局 m_linearLCreateAP.setVisibility(View.VISIBLE); //热点布局可用 m_progBarCreatingAP.setVisibility(View.VISIBLE); m_textVPromptAP.setText( "正在创建热点" ); //进度条文字 m_btnCreateWF.setVisibility(View.GONE); //点击一次不可再点 m_textVWTPrompt.setVisibility(View.GONE); } }); //对话框确认按钮 m_btnConfirmDialog.setOnClickListener( new OnClickListener() { @Override public void onClick(View v) { m_LinearLDialog.setVisibility(View.GONE); //让对话框布局消失 switch (wFOperateEnum) { //根据wifi操作事件 case WFOperateEnum.CLOSE: //关闭wifi热点 //设置布局 m_textVWTPrompt.setVisibility(View.VISIBLE); m_textVWTPrompt.setText( "热点已关闭！可以进行其他操作了！" ); //中间提醒文字 m_btnCreateWF.setBackgroundResource(R.drawable.x_wt_create); //按钮文字改回“创建” m_gifRadar.setVisibility(View.GONE); //热点动画停止 m_linearLCreateAP.setVisibility(View.GONE); //下部创建热点布局不可用 //关闭热点 m_wiFiAdmin.createWifiAP(m_wiFiAdmin.createWifiInfo(m_wiFiAdmin.getApSSID(), "zhf123456" , 3 , "ap" ), false ); break ; case WFOperateEnum.CREATE: //创建wifi热点 if (m_wtSearchProcess.running) { m_wtSearchProcess.stop(); //搜索wifi线程停止 m_FrameLWTSearchAnimation.stopAnimation(); //搜索wifi动画停止 } //关闭wifi m_wiFiAdmin.closeWifi(); //创建WiFi热点 m_wiFiAdmin.createWifiAP(m_wiFiAdmin.createWifiInfo(WIFI_AP_HEADER + getLocalHostName(), WIFI_AP_PASSWORD, 3 , "ap" ), true ); m_createAPProcess.start(); //刷新listView布局 m_listWifi.clear(); m_wTAdapter.setData(m_listWifi); m_wTAdapter.notifyDataSetChanged(); //设置布局 m_linearLCreateAP.setVisibility(View.VISIBLE); m_progBarCreatingAP.setVisibility(View.VISIBLE); //旋转进度条 m_btnCreateWF.setVisibility(View.GONE); m_textVWTPrompt.setVisibility(View.GONE); m_textVPromptAP.setText( "正在创建热点..." ); //进度条文字 break ; case WFOperateEnum.SEARCH: //搜索可用热点 //设置布局 m_textVWTPrompt.setVisibility(View.VISIBLE); m_textVWTPrompt.setText( "正在搜索附近的热点..." ); m_linearLCreateAP.setVisibility(View.GONE); //创建热点布局不可用 m_btnCreateWF.setVisibility(View.VISIBLE); m_btnCreateWF.setBackgroundResource(R.drawable.x_wt_create); //按钮文字改回“创建” m_gifRadar.setVisibility(View.GONE); //热点动画停止 m_linearLCreateAP.setVisibility(View.GONE); //下部创建热点布局不可用 //搜索热点线程关闭 if (m_createAPProcess.running) m_createAPProcess.stop(); //关闭热点 m_wiFiAdmin.createWifiAP(m_wiFiAdmin.createWifiInfo(m_wiFiAdmin.getApSSID(), WIFI_AP_PASSWORD, 3 , "ap" ), false ); //打开wifi m_wiFiAdmin.OpenWifi(); m_wtSearchProcess.start(); m_FrameLWTSearchAnimation.startAnimation(); break ; } } }); //对话框取消按钮事件 m_btnCancelDialog.setOnClickListener( new OnClickListener() { @Override public void onClick(View v) { //对话框布局消失 m_LinearLDialog.setVisibility(View.GONE); } }); } /**Wifi是否连接**/ private boolean isWifiConnect() { boolean isConnect = true ; //用于网络连接状态的检测 ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); if (!cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnected()) isConnect = false ; return isConnect; } /**获取wifi热点状态**/ public boolean getWifiApState() { try { WifiManager localWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); Method m = localWifiManager.getClass().getMethod( "getWifiApState" , new Class[ 0 ]); int i = (Integer)(m.invoke(localWifiManager, new Object[ 0 ])); return ( 3 == i) || ( 13 == i); //WIFI_STATE_ENABLED 3 //WIFI_AP_STATE_ENABLED 13 } catch (Exception e) { e.printStackTrace(); } return false ; } /**获取手机信息**/ public String getLocalHostName() { String str1 = Build.BRAND; //主板 String str2 = Build.MODEL; //机型 if (- 1 == str2.toUpperCase().indexOf(str1.toUpperCase())) str2 = str1 + "_" + str2; return str2; } private void init() { //线程是否在运行 if ( this .m_wtSearchProcess.running || this .m_createAPProcess.running) { return ; } //没有连接上wifi或者是wifi热点 if (!isWifiConnect() && !getWifiApState()) { m_wiFiAdmin.OpenWifi(); m_wtSearchProcess.start(); //开启搜索wifi超时检测线程 m_wiFiAdmin.startScan(); //开启搜索wifi //开启搜索动画 m_FrameLWTSearchAnimation.startAnimation(); //设置控件 m_textVWTPrompt.setVisibility(View.VISIBLE); m_textVWTPrompt.setText( " 正在搜索附近的热点..." ); m_linearLCreateAP.setVisibility(View.GONE); m_btnCreateWF.setBackgroundResource(R.drawable.x_wt_create); } //连接上wifi if (isWifiConnect()) { this .m_wiFiAdmin.startScan(); this .m_wtSearchProcess.start(); this .m_FrameLWTSearchAnimation.startAnimation(); //设置控件 this .m_textVWTPrompt.setVisibility( 0 ); this .m_textVWTPrompt.setText( "正在搜索附近的热点..." ); this .m_linearLCreateAP.setVisibility(View.GONE); this .m_btnCreateWF.setBackgroundResource(R.drawable.x_wt_create); this .m_gifRadar.setVisibility(View.GONE); m_listWifi.clear(); if (m_wiFiAdmin.mWifiManager.getScanResults() != null ) { for ( int i = 0 ; i < m_wiFiAdmin.mWifiManager.getScanResults().size(); i++) { //识别出自己自定连接的wifi if (m_wiFiAdmin.mWifiManager.getScanResults().get(i).SSID.startsWith(WIFI_AP_HEADER)) { m_listWifi.add(m_wiFiAdmin.mWifiManager.getScanResults().get(i)); //将指定wifi添加进去 } } m_wTAdapter.setData(m_listWifi); //将连接的信息添加到listView中 m_wTAdapter.notifyDataSetChanged(); } //连接上wifi热点 if (getWifiApState()){ if (m_wiFiAdmin.getApSSID().startsWith(WIFI_AP_HEADER)) { //设置控件 m_textVWTPrompt.setVisibility(View.GONE); m_linearLCreateAP.setVisibility(View.VISIBLE); m_progBarCreatingAP.setVisibility(View.GONE); m_btnCreateWF.setVisibility(View.VISIBLE); m_gifRadar.setVisibility(View.VISIBLE); m_btnCreateWF.setBackgroundResource(R.drawable.x_ap_close); m_textVPromptAP.setText( "\n热点名：" + m_wiFiAdmin.getApSSID() + "\n连接密码：zhf12345" ); } } } } @Override protected void onDestroy() { // TODO Auto-generated method stub super .onDestroy(); WIFIBroadcast.ehList.remove( this ); } @Override public void handleConnectChange() { Message msg = mHandler.obtainMessage(m_nWTConnectResult); mHandler.sendMessage(msg); } @Override public void scanResultsAvaiable() { Message msg = mHandler.obtainMessage(m_nWTScanResult); mHandler.sendMessage(msg); } @Override public void wifiStatusNotification() { m_wiFiAdmin.mWifiManager.getWifiState(); //获取当前wifi状态 } } 貌似有点长。。。简单说明一下： 1.首先，初始化主界面（xml有些复杂，慢慢理一下就好了，不是什么大问题）接下来，处理三个重要的按钮事件：右上角的搜索wifi按钮、中间创建或关闭热点按钮、对话框中确定按钮。处理前两者事件时，需关注当前wifi状态，若为占用，需弹出提醒对话框来根据当前WiFi操作（WFOperateEnum类中定义好了）事件，来创建、关闭、搜索等具体事务。 2.之所以定义广播接收者，是为了监听当wifi状态发生变化时，能够及时更新界面 广播接收者WIFIBroadcast类: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 package com.zhf.wifidemo.broadcast; import java.util.ArrayList; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.wifi.WifiManager; import android.util.Log; /** * 监听wifi热点变化 * @author ZHF * */ public class WIFIBroadcast extends BroadcastReceiver{ public static ArrayList<EventHandler> ehList = new ArrayList<EventHandler>(); @Override public void onReceive(Context context, Intent intent) { //搜索到wifi热点结果的广播: "android.net.wifi.SCAN_RESULTS" if (intent.getAction().endsWith(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)) { Log.i( "WTScanResults---->扫描到了可用网络---->" , "android.net.wifi.SCAN_RESULTS" ); //遍历通知各个监听接口 for ( int i = 0 ; i < ehList.size(); i++) { ((EventHandler)ehList.get(i)).scanResultsAvaiable(); } //wifi打开或关闭状态变化 "android.net.wifi.WIFI_STATE_CHANGED" } else if (intent.getAction().endsWith(WifiManager.WIFI_STATE_CHANGED_ACTION)) { Log.i( "WTScanResults----->wifi状态变化--->" , "android.net.wifi.WIFI_STATE_CHANGED" ); //这里不需要连接一个SSID（wifi名称） for ( int j = 0 ; j < ehList.size(); j++) { ((EventHandler)ehList.get(j)).wifiStatusNotification(); } //连接上一个SSID后发出的广播，(注：与android.net.wifi.WIFI_STATE_CHANGED的区别) } else if (intent.getAction().endsWith(WifiManager.NETWORK_STATE_CHANGED_ACTION)) { Log.i( "WTScanResults----->网络状态变化---->" , "android.net.wifi.STATE_CHANGE" ); for ( int m = 0 ; m < ehList.size(); m++) { ((EventHandler)ehList.get(m)).handleConnectChange(); } } } /** * 事件监听接口 * @author ZHF * */ public static abstract interface EventHandler { /**处理连接变化事件**/ public abstract void handleConnectChange(); /**扫描结果是有效事件**/ public abstract void scanResultsAvaiable(); /**wifi状态变化事件**/ public abstract void wifiStatusNotification(); } } 说明：监听系统wifi状态变化，内部定义了一个事件处理接口，当wifi状态发生变化时，让其实现类去发送消息更新界面。 CreateAPProcess类： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 package com.zhf.wifidemo.ui; import android.net.wifi.WifiManager; import android.os.Message; import com.zhf.wifidemo.wifi.MainActivity; /** * 创建Wifi热点 * @author ZHF * */ public class CreateAPProcess implements Runnable{ public MainActivity context; public boolean running = false ; private long startTime = 0L; private Thread thread = null ; public CreateAPProcess(MainActivity context) { super (); this .context = context; } @Override public void run() { while ( true ) { if (!running) return ; //WIFI_STATE_ENABLED 3 //WIFI_AP_STATE_ENABLED 13 if ((context.m_wiFiAdmin.getWifiApState() == WifiManager.WIFI_STATE_ENABLED) || (context.m_wiFiAdmin.getWifiApState() == 13 ) || (System.currentTimeMillis() - this .startTime >= 30000L)){ //wifi可用 或 热点可用 Message msg = context.mHandler.obtainMessage(context.m_nCreateAPResult); context.mHandler.sendMessage(msg); } try { Thread.sleep(5L); } catch (Exception e) { e.printStackTrace(); } } } public void start() { try { thread = new Thread( this ); running = true ; startTime = System.currentTimeMillis(); thread.start(); //开启线程 } catch (Exception e) { e.printStackTrace(); } } public void stop() { try { running = false ; thread = null ; startTime = 0L; } catch (Exception e) { // TODO: handle exception } } } 其他类文件具体看源码，当创建一个热点成功后，等待其他客户端搜索 上图： WIFIAdapte类： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 /** * 网络列表适配器 * @author ZHF * */ public class WTAdapter extends BaseAdapter { private LayoutInflater mInflater; private List<ScanResult> mList; //扫描到的网络结果列表 private MainActivity mContext; public WTAdapter(MainActivity context, List<ScanResult> list) { // TODO Auto-generated constructor stub this .mContext = context; this .mList = list; this .mInflater = LayoutInflater.from(context); } //新加的一个函数，用来更新数据 public void setData(List<ScanResult> list) { this .mList = list; notifyDataSetChanged(); } @Override public int getCount() { return mList.size(); } @Override public Object getItem( int position) { return mList.get(position); } @Override public long getItemId( int position) { return position; } @Override public View getView( final int position, View convertView, ViewGroup parent) { //获取点击向的扫描结果 final ScanResult localScanResult = mList.get(position); //获取wifi类 // final WifiAdmin wifiAdmin = WifiAdmin.getInstance(mContext); final WifiAdmin wifiAdmin = mContext.m_wiFiAdmin; final ViewHolder viewHolder; if (convertView == null ) { viewHolder = new ViewHolder(); convertView = mInflater.inflate(R.layout.wtitem, null ); //加载布局模板控件 viewHolder.textVName = ((TextView) convertView.findViewById(R.id.name_text_wtitem)); viewHolder.textConnect = ((TextView) convertView.findViewById(R.id.connect_text_wtitem)); viewHolder.linearLConnectOk = ((LinearLayout) convertView.findViewById(R.id.connect_ok_layout_wtitem)); viewHolder.progressBConnecting = ((ProgressBar) convertView.findViewById(R.id.connecting_progressBar_wtitem)); convertView.setTag(viewHolder); } else { viewHolder = (ViewHolder) convertView.getTag(); } //点击连接处理事件 viewHolder.textConnect.setOnClickListener( new OnClickListener() { @Override public void onClick(View v) { //创建wifi网络 WifiConfiguration localWifiConfiguration = wifiAdmin.createWifiInfo(localScanResult.SSID, MainActivity.WIFI_AP_PASSWORD, 3 , "wt" ); //添加到网络 wifiAdmin.addNetwork(localWifiConfiguration); //"点击链接"消失，显示进度条， viewHolder.textConnect.setVisibility(View.GONE); viewHolder.progressBConnecting.setVisibility(View.VISIBLE); viewHolder.linearLConnectOk.setVisibility(View.GONE); //点击后3.5s发送消息 mContext.mHandler.sendEmptyMessageDelayed(mContext.m_nWTConnected, 3500L); } }); // 点击断开处理事件 viewHolder.linearLConnectOk.setOnClickListener( new OnClickListener() { @Override public void onClick(View v) { //断开指定wifi热点 wifiAdmin.disconnectWifi(wifiAdmin.getWifiInfo().getNetworkId()); //"断开连接"消失，进度条显示 viewHolder.textConnect.setVisibility(View.GONE); viewHolder.progressBConnecting.setVisibility(View.VISIBLE); viewHolder.linearLConnectOk.setVisibility(View.GONE); //点击后3.5s发送消息 mContext.mHandler.sendEmptyMessageDelayed(mContext.m_nWTConnected, 3500L); } }); //初始化布局 viewHolder.textConnect.setVisibility(View.GONE); viewHolder.progressBConnecting.setVisibility(View.GONE); viewHolder.linearLConnectOk.setVisibility(View.GONE); viewHolder.textVName.setText(localScanResult.SSID); //显示热点名称 // 正连接的wifi信息 WifiInfo localWifiInfo = wifiAdmin.getWifiInfo(); if (localWifiInfo != null ) { try { //正在连接 if ((localWifiInfo.getSSID() != null )&& (localWifiInfo.getSSID().equals(localScanResult.SSID))) { viewHolder.linearLConnectOk.setVisibility(View.VISIBLE); return convertView; } } catch (NullPointerException e) { e.printStackTrace(); return convertView; } viewHolder.textConnect.setVisibility(View.VISIBLE); } return convertView; } public final class ViewHolder { public LinearLayout linearLConnectOk; public ProgressBar progressBConnecting; public TextView textConnect; public TextView textVName; } } 点击连接，实现客户连接，此时他们将处于同一网段内，接下来就可以自己实现传输数据，操控等一系列操作了。 在下一篇中我会继实现一个基于wif热点的多人聊天室，希望能帮助到大家！ 源码:http://down.51cto.com/data/1036876 本文转自zhf651555765 51CTO博客，原文链接：http://blog.51cto.com/smallwoniu/1338618，如需转载请自行联系原作者
