判断当前Wifi或Ethernet连接状态:
public static boolean isNetworkConnected(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = cm.getActiveNetworkInfo();
if (info != null) {
int type = info.getType();
if (type == ConnectivityManager.TYPE_WIFI ||
type == ConnectivityManager.TYPE_ETHERNET) {
return info.isAvailable();
}
}
return false;
}
BroadcastReceiver中监测Wifi或Ethernet连接状态:
if (ConnectivityManager.CONNECTIVITY_ACTION.equals(action)) {
Bundle extras = intent.getExtras();
if (extras != null) {
NetworkInfo networkInfo =
(NetworkInfo)extras.get(ConnectivityManager.EXTRA_NETWORK_INFO);
if (networkInfo == null) return;
State state = networkInfo.getState();
int networkType = networkInfo.getType();
if (networkType == ConnectivityManager.TYPE_WIFI ||
networkType == ConnectivityManager.TYPE_ETHERNET) {
if (state == State.CONNECTED) {
mListener.onNetworkStateChange(true);
} else if (state == State.DISCONNECTED) {
mListener.onNetworkStateChange(false);
}
}
}
}