Question

This is my code in my first activity:

Intent i = new Intent(this, OtherScreen.class);
    i.putExtra("id1", "first");
    i.putExtra("id2", "second");
    startActivity(i);

where first,second are the values I want to be passed.
and on my other class i have this:

Intent i = getIntent();
        Bundle extras = i.getExtras();
        String result = extras.getString("id1");
        System.out.println("yeah"+result);

but after i run it, my result is null.Can you help me?
If I write my getString in that ways, I am getting syntax errors.

String result = extras.getString(id1); //id1 cannot be resolved to a variable
String result = extras.getString("id1","default value"); // remove argument

Answer 1

Intent i = new Intent(yourcurrentactivity.this, OtherScreen.class);

i.putExtra("id1", "first");
i.putExtra("id2", "second");
startActivity(i);

Bundle extras = getIntent().getExtras();
if (extras != null) {
    String result = extras.getString("id1");                
    System.out.println("yeah"+result);
}