Android BroadcastReceiver onReceive() called twice on android 4.0

Question

I faced to one problem on android 4.0.3 (on 4.1.2 it works fine). I have in my Activity BroadcastReceiver. When I send a broadcast, method onReceive() called always twice. P

Answer 1

I had fixed this issue by using a static value.

Please find my code below.

My Activity

private static Snackbar mSnackbar;
private NetworkChangeReceiver mNetworkChangeReceiver;

@Override
protected void onResume() {
    super.onResume();
    registerReceivers();
}
@Override
protected void onPause() {
    super.onPause();
    unRegisterReceivers();
}
private void registerReceivers() {
    mNetworkChangeReceiver = new NetworkChangeReceiver() {
        @Override
        protected void onNetworkChange(boolean status) {
            if (!status) {
                if (mSnackbar == null) {
                    mSnackbar = Snackbar
                            .make(drawer, R.string.no_internet, Snackbar.LENGTH_INDEFINITE)
                            .setActionTextColor(Color.YELLOW)
                            .setAction(R.string.ok, new View.OnClickListener() {
                                @Override
                                public void onClick(View view) {
                                }
                            });
                    mSnackbar.show();
                }
            } else {
                if (mSnackbar != null) {
                    mSnackbar.dismiss();
                    mSnackbar = null;
                }
            }
        }
    };
    IntentFilter nwStateChangeFilter = new IntentFilter();
    nwStateChangeFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    nwStateChangeFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
    registerReceiver(mNetworkChangeReceiver, nwStateChangeFilter);
}
private void unRegisterReceivers() {
    unregisterReceiver(mNetworkChangeReceiver);
}

NetworkChangeReceiver.Class

public abstract class NetworkChangeReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(final Context context, final Intent intent) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        if (activeNetwork != null) { // connected to the internet
                if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI){
                    // connected to wifi
                    onNetworkChange(true);
                } else if (activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE) {
                    // connected to the mobile provider's data plan
                    onNetworkChange(true);
                } else {
                    // not connected to the internet
                    onNetworkChange(false);
                }
        } else {
            // not connected to the internet
            onNetworkChange(false);
        }
    }
    protected abstract void onNetworkChange(boolean status);
}