Passing data and add other data to it and pass it again

Question

I have 3 activities , I sent data A from activity 1 to activity 2 . I want to send data A + data B ( from second activity ) to activity 3 and show both data A and data B in a sentence in activity 3 . I do not know how to do this , how can i send data a and data b ?

Answer 1

Activity A:

pass data to activity B

Intent i = new Intent(getApplicationContext,ActivityB.class);
i.putExtra("DataA",dataA);
i.startActivity(i);

retrive data in ActvityB

 String a;

Intent i = getIntent();
a= i.getStringExtra("DataA");

pass data in actvityc from ActivityB

 Intent i = new Intent(getApplicationContext,ActivityC.class);
 i.putExtra("DataA",a);
 i.putExtra("DataB",b);
 i.startActivity(i);

retrive data in ActvityC

String a,b;
 Intent i = getIntent();
 a= i.getStringExtra("DataA");
 b= i.getStringExtra("DataB");

Answer 2

for send data from activity use :

intent.putExtra("USER_NAME", userName);

and get data in another activity :

getIntent().getExtras().getString("USER_NAME");

if you wand send 2 data :

intent.putExtra("USER_NAME1", userName);
intent.putExtra("USER_NAME2", userName);

if you wand get 2 data :

getIntent().getExtras().getString("USER_NAME1");
getIntent().getExtras().getString("USER_NAME2");