arraylist - Android WifiManager: How to store wifi scan results for multiple scans -


i need multiple scans using wifimanager. have following code scan once , store results in access_points, can suggest efficient code store results of multiple scans? 

 wifi = (wifimanager) this.getsystemservice(wifi_service);  list<scanresult> access_points = wifi.getscanresults();

this wrong way results. if list<scanresult> access_points = wifi.getscanresults();it return old results you.

to wifi scan results instance of wifimanager in first line , then

wifimanager wifimanager = (wifimanager) context.getsystemservice(context.wifi_service); wifimanager.getscanresults();  // above async call , results available system broadcast scan_results_available intent , need set `broadcastreceiver` it.  // , when catch intent, results using   list<scanresult> results = wifimanager.getscanresults();

to results multiple times or multiple scans need call wifimanager.startscan() multiple times , obtain fresh results using list<scanresult> results = wifimanager.getscanresults(); when catch intent scan_results_available. can use timer or use post method of handler.


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