Passing from Activity2 to Activity1 and then again reflecting changes from Activity 1 to Activity 2

Question

I've 2 activities, Activity1 and Activity2.

In Activity1 i've a EdiText and ImageView. When button is clicked Activity2 is started.

In Activity2 i've a listview. It contains Image and TextView.

I have displayed the data retrieved from listview image and textview in Activity2 in the imageview and editext resp in Activity1 . Now i made some changes in the editext and imageview in Activity1 and I need to pass this changes again to the listview image and text in Activity 2.

can someone help me with the code to make this work?

Now, you have stated what you need. Please show some releavant code you have been working on. It could help us who are trying to help you. — Augustus Francis, Sep 23 '13 at 11:21

score 1 · Accepted Answer · edited May 23 '17 at 12:08

1

Better idea is to use startActivityForResult.

It similar problem to this: How to manage `startActivityForResult` on Android?

edited May 23 '17 at 12:08

Community

1
1

answered Sep 23 '13 at 11:16

TommyNecessary

1,367
1
13
19

score 0 · Answer 2 · answered Sep 23 '13 at 11:15

In your current activity1, create an intent

Intent i = new Intent(getApplicationContext(), Activity2.class);
i.putExtra(key, value);
startActivity(i);

then in the other activity2, retrieve those values.

Bundle extras = getIntent().getExtras(); 
if(extras !=null) {
    String value = extras.getString(key);
}

score 0 · Answer 3 · answered Sep 23 '13 at 11:48

From your FirstActivity call the SecondActivity using startActivityForResult() method

Code:

Intent i = new Intent(this, SecondActivity.class);
startActivityForResult(i, 1);

In your SecondActivity set the data which you want to return back to FirstActivity.

eg: In SecondActivity if you want to send back data set a onclicklistener on the item and use this code:

Intent returnIntent = new Intent(); returnIntent.putExtra("image",image); returnIntent.putExtra("title",title); setResult(RESULT_OK,returnIntent);
finish();

If the user doesn't select any list item and pressed Back Button. In your MainActivity use this code.

@Override
public void onBackPressed() {
    Intent returnIntent = new Intent();
    setResult(RESULT_CANCELED, returnIntent);        
    finish();
}

Now in your FirstActivity class write following code for onActivityResult() method

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

  if (requestCode == 1) {

     if(resultCode == RESULT_OK){      
         String image=data.getIntExtra("result");
         String title=data.getStringExtra("title");
         ImageView img = (ImageView) findViewById(R.id.imageid);
         TextView txt = (TextView) findViewById(R.id.txtid);
         image.setImageResource(image);
         txt.setText(title);
     }
     if (resultCode == RESULT_CANCELED) {    
         //Write your code if there's no result
     }
  }
}//onActivityResult

Passing from Activity2 to Activity1 and then again reflecting changes from Activity 1 to Activity 2

3 Answers3