如何保存Intent状态

Question

I have three activities. A, B and C. I press a button to open the B through startActivity(intent) . From the BI pass data back to A through intent.putExtra() and then, from AI get the data through getIntent . I'm putting this data in a String on my A. The problem is that when I try to do the same with C. The data that I get from the B disappears. My question is: How can I get data from two activities?

Answer 1

Do you want to pass data from activity B to C via A?

If its that what I understand,then follow the foll steps:

Calling A from B:

Intent i=new Intent(getApplicationContext(),A.class);
i.putExtra("key","value");
startAtivity(i);  

Fetching data from intent in class A:

Bundle extras = getIntent().getExtras();
String value=extras.getString("key");

Passing same data to activity C from class A:

Intent i=new Intent(getApplicationContext(),C.class);
i.putExtra("key",value);
startAtivity(i);