thanks Jeremy, I will try the onresume option. A separate thread is
not feasible.

-vk
On Jun 30, 1:23 am, Jeremy <[email protected]> wrote:
> Here's one crazy workaround, but I'm sure there's an easier way:
>
> When your receiver get's set off, you can set a hidden boolean
> preference (since they are global) and then start a simple dialog
> activity saying you've lost connectivity. Starting the new activity
> will call the original activity's onPause so when the dialog is
> closed, onResume  is called for the original activity (the one where
> you want to change the layout. What I would do is in the onResume
> method for that activity, I would check if the boolean preference was
> changed and then change the visibility of the button accordingly. You
> just have to make sure to set the preference back when you need the
> button.
>
> This is a pretty strange way to fix this problem, but it does work.
> Are you sure you need a receiver for what you're doing though? I know
> you can check connectivity pretty easily with a method like:
>
>        public boolean isConnected() {
>                 ConnectivityManager connMgr=(ConnectivityManager)
>                 getSystemService(Context.CONNECTIVITY_SERVICE);
>                 NetworkInfo info=connMgr.getActiveNetworkInfo();
>                 return(info!=null && info.isConnected());
>         }
>
> but I guess if you want the button to be disabled instantly when
> connection is lost, you'd have to be running that method in a separate
> thread over and over, which is probably worse from an efficiency
> standpoint than using a receiver.
>
> On Jun 28, 9:13 pm, AUandroid <[email protected]> wrote:
>
> > I have a layout with two buttons, I want to disable or make unclikable
> > one of the buttons when internet connection is lost and back to
> > clickable when connection is regained. From my broadcast receiver I am
> > calling another class(which extends activity and thus can call
> > findViewById) which is attempting to change the main layout. App is
> > force closing. What am I doing wrong here, any other ideas as to how
> > to achieve what I am trying to do. thanks
>
> > -vk

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