Android - Export Option on ListAdapter to another Activity which has EditText

Question

So I have a ListAdapter which has various options and what I want is that when a user clicks on the ListAdapter an activity starts which has an EditText and the EditText should be automatically filled with option which was, clicked on for the ListAdapter.

Currently I have Main.java:

public class Main extends ListActivity{
    String options[] = {"option1","option2"};
    protected void onCreate(Bundle savedInstanceState){
      super.onCreate(savedInstanceState);
      setListAdapter(new ArrayAdapter<String>   (Main.this,android.R.layout.simple_list_item_1,options);
    }

    protected void onListItemClick(ListView l,View v, int position, long id){
       super.onListItemClick(l,v,position,id);
       try{
       Class theClass = Class.forname("com.example.SecondActivity");
       Intent oI = new Intent(Main.this,theClass);
       startActivity(oI);
       }catch(ClassNotFoundException e){e.printStackTrace();}
    }

SecondActivity.java (This contains the activity with the edit text):

public class SecondActivity extends Activity{
   protected void onCreate(Bundle savedInstanceState){
      super.onCreate(savedInstanceState);
      setContextView(R.layout.secondactivity)
      EditText edt = (EditText) findViewById(R.id.edt1);
    }

What all extra do I need to do so that this works. All the help is deeply appreciated.

score 0 · Answer 1 · edited May 23 '17 at 12:10

0

While starting an activity, you can send more information to that activity like an integer or String value. It can be send in the following way:

Intent addIntent = new Intent();
addIntent.putExtra(String name, String value).

So, you can send the name to your new activity. Then you need to get this value in onCreate function using getExtra() function. and can use to fill the editText.

Below link will give you more insight:

How to use putExtra() and getExtra() for string data

edited May 23 '17 at 12:10

Community

1
1

answered Feb 27 '14 at 08:17

Sushil

8,250
3
39
71

I tried doing that, but I can't achieve any result. – Massa Feb 27 '14 at 08:47
could you please explain in which particular place you faced issue? – Sushil Feb 27 '14 at 08:48
What I don't get it is how will the EditText know which position on the ListAdapter has been clicked ? – Massa Feb 27 '14 at 08:49
In onListItemClick, one of the paramemter is the "position". You can even pass this information to your new activity. – Sushil Feb 27 '14 at 08:51
Thats exactly what I did, but then the application crashes. – Massa Feb 27 '14 at 19:51

Dan Cuc · Answer 2 · 2014-02-28T14:30:40.380

Try:

protected void onListItemClick(ListView l,View v, int position, long id){
   super.onListItemClick(l,v,position,id);
   try{
   Class theClass = Class.forname("com.example.SecondActivity");
   Intent oI = new Intent(Main.this,theClass);

   oI.putExtra("selectedText", options[position]);

   startActivity(oI);
   }catch(ClassNotFoundException e){e.printStackTrace();}
}


public class SecondActivity extends Activity{
protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  setContextView(R.layout.secondactivity)

  EditText edt = (EditText) findViewById(R.id.edt1);
   if(getIntent()!=null && getIntent().getExtras()!=null)
    {
        String value = getIntent().getStringExtra("selectedText");
        edt.setText(value);
    }
}

let me know if it works ok, I haven't tested it.

I tried this but it throws and error and my application crashes. — Massa, Feb 27 '14 at 19:50
I've made some changes, if you haven't yet solved the problem please try again. — Dan Cuc, Feb 28 '14 at 14:31

score 0 · Answer 3 · answered Feb 27 '14 at 21:15

0

Solved the problem by making use of putExtra instead of getExtras

answered Feb 27 '14 at 21:15

Massa

69
1
8

Android - Export Option on ListAdapter to another Activity which has EditText

3 Answers3