ネットワークの状態変化を取得するReceiver

NetworkStateReceiver

public class NetworkStateReceiver extends BroadcastReceiver {


    public static final IntentFilter NETWORK_INTENT_FILTER = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);

    private static final String TAG = NetworkStateReceiver.class.getSimpleName();
    
    private static boolean sBeforeNetworkContext = false;

    private NetworkStateListener mNetworkStateListener;

    public NetworkStateReceiver() {
    }

    public NetworkStateReceiver(NetworkStateListener listener) {
        this.mNetworkStateListener = listener;
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        final Bundle extra = intent.getExtras();
        if (extra == null) {
            return;
        }

        __Log.d(TAG, "=====================================");
        __Log.d(TAG, "EXTRA_EXTRA_INFO: " + extra.getString(ConnectivityManager.EXTRA_EXTRA_INFO));
        __Log.d(TAG, "EXTRA_IS_FAILOVER: " + extra.getString(ConnectivityManager.EXTRA_IS_FAILOVER));
        __Log.d(TAG, "EXTRA_NETWORK_INFO: " + extra.getString(ConnectivityManager.EXTRA_NETWORK_INFO));
        __Log.d(TAG, "EXTRA_NETWORK_TYPE: " + extra.getString(ConnectivityManager.EXTRA_NETWORK_TYPE));
        __Log.d(TAG, "EXTRA_NO_CONNECTIVITY: " + extra.getString(ConnectivityManager.EXTRA_NO_CONNECTIVITY));
        __Log.d(TAG, "EXTRA_REASON: " + extra.getString(ConnectivityManager.EXTRA_REASON));
        __Log.d(TAG, "ConnectionArrive? : " + Utils.arriveConnection(context));
        __Log.d(TAG, "=====================================\n");

        if(mNetworkStateListener == null) {
            return;
        }
        
        final boolean nowNetworkContext = Utils.arriveConnection(context);
        if (sBeforeNetworkContext == nowNetworkContext) {
            return;
        }

        sBeforeNetworkContext = nowNetworkContext;

        if(Utils.arriveConnection(context)){
            mNetworkStateListener.onConnect();
        } else  {
            mNetworkStateListener.onDisConnect();
        }
    }

    public interface NetworkStateListener {
        public void onConnect();

        public void onDisConnect();
    }
}