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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