Question

I stack with this, I’m trying to create application using TabLayout. I have 3 tabs (3 different activities). I also got service which reads my gps position – that works fine. I got thread which post to the web server user position – that works to.

Now I’m trying to create thread which ask web server if there are any messages for user. If there are – thread try to show custom dialog (2 text views and gallery – it works if i start action from activity by clicking button), and there problem starts I know i can’t update UI form threads different from main thread but i don’t know how to work around this. I tried to use AsyncTask – failed – i don’t want to assign AsyncTask to specific Activity as inner private class.

I wish I could show my custom dialog regardless of the tab on which user is currently using.

Thread works fine, but how to show that dialog.

I read about runOnUIThread but don’t know how to use it.

Any ideas, any similar examples ??

Answer 1

Using runOnUiThread is easy.

YourActivity.this.runOnUiThread(new Runnable() {
    public void run() {
        YourActivity.this.showDialog(CUSTOM_DIALOG_ID);
    }
}