Question

I have a String variable that is declared and edited in the Main Activity.

I would like it to be display in a widget, but not sure how.

In the Widget file I have:

remoteViews.setTextViewText(R.id.widgetAmount, String.valueOf(number))

but the number variable is declared in another class.

Answer 1

You should send a Broadcast using an Intent, that contains the value you want to display in your App Widget. Create an Intent and add the value:

Intent intent = new Intent(context, YourAppWidgetProvider.class);
intent.putExtra("extra_value", value);
sendBroadcast(intent);

Now in your AppWidgetProvider class’s onReceive you can access this value:

String value = intent.getStringExtra("extra_value");

Hope this helps.