Android扫描Wifi网络

Question

我正在尝试扫描无线网络并在网上找到这个有用的来源.不幸的是它没有用,我不明白为什么.我的问题是,我不能等待10分钟的结果 - 我需要它们在几秒钟内,并考虑设置布尔变量等待假一旦得到结果....好吧,它运行永远..看起来没什么收到的.任何的想法 ？谢谢.

// -- Sample WiFi implementation - http://groups.google.com/group/android-developers/browse_thread/thread/f722d5f90cfae69
        IntentFilter i = new IntentFilter();
        i.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);
            registerReceiver(new BroadcastReceiver(){
                @Override
                public void onReceive(Context c, Intent i){
                    // Code to execute when SCAN_RESULTS_AVAILABLE_ACTION event occurs
                    mWifiManager = (WifiManager) c.getSystemService(Context.WIFI_SERVICE);
                    wireless =  mWifiManager.getScanResults(); // Returns a <list> of scanResults
                    waiting = false;
                }
            }
        ,i);
        // -- End Wifi Sample 


        mWifiManager.startScan();


        while (waiting)  { 
            try {
                Thread.sleep(200);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            Log.d("PROJECT1","Wifi WAITING");
        }

Answer 1

你需要实现一个BroadcastReceiver,监听返回的扫描结果,WifiManager.startScan(). onReceive()允许你直接访问扫描结果.扫描完成并触发大约需要1秒钟onReceive()...