[android-developers] Android getConnectionInfo() crash

Hello,

I'm trying to get wifi signal strength in an android 1.6 dev phone
with this code:

WifiManager m = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo w;
w= m.getConnectionInfo();

But when their is the getConnectionInfo, the application crash.
Is there something wrong with my code ? I've search without founding.

Thanks !

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