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http://docs.blackberry.com/en/developers/deliverables/9137/Check_if_the_WiFi_tra

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Import the net.rim.device.api.system.WLANInfo  class.

 

if (WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED) {…}
需要jde4.3及以上

 

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