Thankyou so much . Yeah i got it very clearly
On Sat, Aug 11, 2012 at 3:08 AM, bob <[email protected]> wrote:
> startScan () returns immediately. The availability of the results is made
> known later by means of an asynchronous event sent on completion of the
> scan.
>
>
> So, you either need to wait 10 seconds or so after startScan or wait till
> you get the event that the scan has completed.
>
> IOW, you are calling wifi.getScanResults() before it has time to find
> anything.
>
>
>
> On Friday, August 10, 2012 3:53:39 AM UTC-5, Meena Rengarajan wrote:
>>
>> Here , i wanna display list of Available Wifi devices ..
>> This is my code please anyone help me , i do not understand what mistake
>> is here ?
>>
>> Please anybody help me here , i wanna display list of Available Wifi
>> devices, i am very new to this Technology ..
>>
>> wifi = (WifiManager) getSystemService(Context.WIFI_**SERVICE);
>> if (wifi.isWifiEnabled() == false)
>> {
>> Toast.makeText(**getApplicationContext(), "wifi is
>> disabled..making it enabled", Toast.LENGTH_LONG).show();
>> wifi.setWifiEnabled(true);
>> }
>> String[] str1 = null;
>> ArrayAdapter<String>adapter=**new ArrayAdapter<String>(this,**
>> android.R.layout.simple_list_**item_1,android.R.id.text1,**str1);
>> lv.setAdapter(adapter);
>> //lv.setAdapter(this.adapter)**;
>> WifiInfo info = wifi.getConnectionInfo();
>> textStatus.append("\n\nWiFi Status: " + info.toString());
>> // wifiConfig=new WifiConfiguration();
>> // wifiConfig.status=**WifiConfiguration.Status.**ENABLED;
>> boolean b=wifi.isWifiEnabled();
>> if(b){
>> wifi.setWifiEnabled(false);
>> Toast.makeText(**getApplicationContext(), "Yes",
>> Toast.LENGTH_SHORT).show();
>> }
>>
>> else{
>> wifi.setWifiEnabled(true);
>> Toast.makeText(**getApplicationContext(), "No",
>> Toast.LENGTH_SHORT).show();
>> }
>>
>>
>>
>> wifi.startScan();
>> List<ScanResult> results = wifi.getScanResults();
>> for (ScanResult result : results) {
>> Toast.makeText(this, result.SSID + " " +
>> result.level,Toast.LENGTH_**SHORT).show();
>> List<WifiConfiguration> configs = wifi.getConfiguredNetworks();
>> for (WifiConfiguration config : configs) {
>> textStatus.append("\n\n" + config.toString());
>> }
>>
>> if (receiver == null)
>> //receiver= new WiFiScanReceiver(this);
>>
>> registerReceiver(receiver, new IntentFilter(
>> WifiManager.SCAN_RESULTS_**AVAILABLE_ACTION));
>> Log.d(TAG, "onCreate()");
>> }
>> }
>>
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