Have you added the permission to read the wifi state?
Can you post the exception that is thrown?
On Dec 17, 7:13 am, zz zt1082 <zt1...@gmail.com> wrote:
> When I call mWifiManager.isWifiEnabled() , program is crash.
>
> my Code is:
> ---------------------------------------------
> import android.app.Activity;
> import android.net.wifi.ScanResult;
> import android.net.wifi.WifiManager;
> import android.os.Bundle;
> import android.util.Log;
>
> public class HelloWIFI extends Activity {
> /** Called when the activity is first created. */
>
> private WifiManager mWifiManager;
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.main);
>
> mWifiManager =
> (WifiManager)this.getSystemService(this.WIFI_SERVICE);
> Log.i("INFO", "WifiState = " + mWifiManager.getWifiState());
> if (mWifiManager.isWifiEnabled())
> {
> Log.i("INFO", "WIFI is enable");
> }
> else
> {
> Log.w("Warning", "WIFI is NOT enable");
> }
>
> mWifiManager.setWifiEnabled(true);
> mWifiManager.startScan();
>
> for (ScanResult result:mWifiManager.getScanResults())
> {
> Log.i("INFO", "ScanResult:" + result.toString());
> }
> }
>
>
>
> }
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