Question

Hi am newbie to java and android.

Assume function demo() from the screenone is going to display some values on Textview which is on the same screen(screenone).

But i need to display that resultant value to the next screen ie.(screen two)

public void demo(){
{
 .....
 .....
}

---

So i have included these line to

screenoneActivity.java

Intent nextScreen = new Intent(getApplicationContext(), SecondtwoActivity.class);
nextScreen.putExtra("","");
startActivity(nextScreen);
demo();

ScreentwoActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) 
{

    super.onCreate(savedInstanceState);

    setContentView(R.layout.main1);

    TextView txtName = (TextView) findViewById(R.id.textView1);

    Intent i = getIntent();

    txtName.setText(name);

I did these things so far.I don’t know how to do transfer data from demo() function to the next screen.

Can anyone give me clues or ideas to achieve this.

Thanks a lot!..

Answer 1

You need to send some value into the putExtra methods parameters to be able to get something out of it.

In your first activity(A):

Intent i = new Intent(A.this, B.class);
i.putExtra("someName", variableThatYouNeedToPass);
startActivity(i);

In your second activity(B):

Bundle extras = getIntent().getExtras();
int fetchedVariable = extras.getInt("someName");