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does not get the available wifi points

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linux-howto

http://stackoverflow.com – I am trying to get all accessible wi-fi points and store them on the string list. For this reason I have created one activity class and corressponding listener class. But, string array namely items is empty, althoug I am trying on the real device. items defined as ; String items[]; in activity class ; wi_fi = (WifiManager) getSystemService(Context.WIFI_SERVICE); List<WifiConfiguration> points= wi_fi.getConfiguredNetworks(); for (WifiConfiguration iter : points) { items = append(items, ("\n\n" + iter.toString()) ); } if (receiver == (HowTos)