Question

I’m going for a tabbed layout for my application, and I’m having a little trouble. I have the main Activity, and then I have the sub activities (one for each tab). In one sub activity, I have a TextView set as a public member of the activity. Using the main activity, how could I call .setText() on the TextView in the sub activity? Thanks!

Answer 1

to achieve that is sending extras in your Main Activity intent, receive in your SubActivity and set text in your TextView.

Source::

Bundle bundle = new Bundle();
bundle.putString("Title","Accessing members in one Activity from another");
Intent newIntent = new Intent(MainActivity.this, SubActivity.class);
newIntent.putExtras(bundle);
startActivity(newIntent);

Target::

 Bundle bundle = getIntent().getExtras();
 String ReceivedTitle = bundle.getString("Title");

TextView.setText(ReceivedTitle);