write a Textview declared in MainActivity

Question

i have declared a TextView in MainActivity, and i want to update it (write something else or update a value) in another class. for example in Main Activity I have

value = (TextView) findViewById(R.id.value_view);

How can I access this TextView in another class and update the value ?

Use an `interface` if logic calls for it. Or look into this: http://stackoverflow.com/questions/10996479/how-to-update-a-textview-of-an-activity-from-another-class — denvercoder9, Nov 24 '16 at 17:59
Did you try passing the context reference as in this question, http://stackoverflow.com/questions/10996479/how-to-update-a-textview-of-an-activity-from-another-class? — Dania, Nov 24 '16 at 18:12

score 2 · Answer 1 · edited Nov 25 '16 at 22:13

2

You need to create TextView object dynamically and give reference of previously created TextView to it.

TextView txt;
txt=(TextView)FindViewById(R.id.text_view);
txt.setText("New Content");

edited Nov 25 '16 at 22:13

Mischiefz

127
16

answered Nov 24 '16 at 18:26

Avdhut K

74
1
13

You can accept this answer if its helped you. Thanks. – Avdhut K Mar 23 '19 at 11:41

write a Textview declared in MainActivity

1 Answers1