Find which WiFi hotspots are public or secured using programmatically

I 开发者_JAVA百科want to know how I can filter hotspots that are secured or public using Android WiFi API or Android SDK?

Everything you need is in the android.net.wifi package. In particular, the ScanResult.capabilities string will contain either 'WPA2', 'WPA' or 'WEP' if the hotspot is secured.