Show in activity message from BroadcastReceiver when change connectivity

Question

I have BroadCastReceiver that control my connectivity. I would, when I lost connection, show message, but not generic toast, but a "layout" that I designed. my broadcast is a generic broadCast for connection:

public class ConnectivityChangeReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(final Context context, final Intent intent) {
        ConnectivityManager cm =(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

        if (cm.getActiveNetworkInfo()!=null){
            Toast.makeText(context, "Connected to Internet", Toast.LENGTH_LONG).show();
        }
        else{
            /** HERE INSTEAD OF TOAST, IWOULD DISPLAY MESSAGE ON ACTIVITY **/
            Toast.makeText(context, "not connection", Toast.LENGTH_LONG).show();

            Log.i("INTERNET", "---------------------> Internet Disconnected. ");
        }
    }

}

And my "no_connection_layout"

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="52dp"
        android:text="No InterNeT"
        android:id="@+id/no_connection"
        android:layout_weight="1"

        android:layout_gravity="center|top"
        android:gravity="center"
        android:background="@android:color/holo_green_dark"
        android:textStyle="bold"
        android:textColor="#ffffff"
        />
</FrameLayout>

Is there a way for show this layout indistinctly current activity?

Answer 1

@Override
public void onReceive(final Context context, final Intent intent) {

    //Obviously cleanup where you do this stuff, to make it efficient
    //If your context is a fragment you need to cast to fragment and then do getActivity instead
    final View noConnectionBanner = ((Activity) context).findViewById(R.id.no_connection)
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

    if (cm.getActiveNetworkInfo() != null) {
        noConnectionBanner.setVisibility(View.GONE);
    } else {
        noConnectionBanner.setVisibility(View.VISIBLE);
    }
}