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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                本節內容從Settings開始,當選擇圖6-2左圖所示的“WPS PIN條目”后,將彈出圖6-2右圖所 示的WPS設置對話框。該對話框對應的類是WpsDialog中,其代碼如下所示。 **WpsDialog.java::WpsDialog** ~~~ public WpsDialog(Context context, int wpsSetup) { super(context); mContext = context; mWpsSetup = wpsSetup; // PIN和PBC方法都在這個WpsDialog中實現 class WpsListener implements WifiManager.WpsListener { public void onStartSuccess(String pin) { if (pin != null) { // WSC PIN啟動成功,WPAS將動態創建一個PIN碼,此處由WpsDialg顯示出來 updateDialog(DialogState.WPS_START, String.format(mContext.getString(R.string.wifi_wps_onstart_pin), pin)); } else {// PBC處理 updateDialog(DialogState.WPS_START, mContext.getString(R.string.wifi_wps_onstart_pbc)); } } public void onCompletion() { updateDialog(DialogState.WPS_COMPLETE, mContext.getString(R.string.wifi_wps_complete)); } public void onFailure(int reason) { ...... } mWpsListener = new WpsListener();// 監聽WPS操作的結果 mFilter = new IntentFilter(); // 監聽NETWORK_STATE_CHANGED_ACTION廣播 mFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); mReceiver = new BroadcastReceiver() { public void onReceive(Context context, Intent intent) { handleEvent(context, intent);// handleEvent的代碼比較簡單,讀者不妨自行閱讀。 } }; } } ~~~ 我們跳過WpsDialog的onCreate函數直接進入其onStart函數,在該函數中,WpsDialog將借助WifiManager和WifiStateMachine交互,相關代碼如下所示。 **WpsDialog.java::onStart** ~~~ protected void onStart() { mTimer = new Timer(false); mTimer.schedule(new TimerTask() { ......// 更新進度條 } , 1000, 1000); mContext.registerReceiver(mReceiver, mFilter); WpsInfo wpsConfig = new WpsInfo();// 構造一個WpsInfo對象 wpsConfig.setup = mWpsSetup;// 對PIN來說,mWpsSetup的值為WpsInfo.DISPLAY // 調用WifiManager的startWps函數,該函數內部將向WifiStateMachine發送START_WPS消息 mWifiManager.startWps(wpsConfig, mWpsListener); } ~~~ 當手機通過WPS成功加入無線網絡后,NETWORK_STATE_CHANGED_ACTION廣播將在handleEvent中被處理。這部分代碼非常簡單,請讀者自行閱讀。 根據代碼中的注釋可知,startWps將向WifiStateMachine發送START_WPS消息。WifiStateMachine該如何處理它呢?
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                              哎呀哎呀视频在线观看