How do I get extra data from intent on Android?

Question

How can I send data from one activity (intent) to another?

I use this code to send data:

Intent i=new Intent(context,SendMessage.class);
i.putExtra("id", user.getUserAccountId()+"");
i.putExtra("name", user.getUserFullName());
context.startActivity(i);

Answer 1

Add-up

Set Data

String value = "Hello World!";
Intent intent = new Intent(getApplicationContext(), NewActivity.class);
intent.putExtra("sample_name", value);
startActivity(intent);

Get Data

String value;
Bundle bundle = getIntent().getExtras();
if (bundle != null) {
    value = bundle.getString("sample_name");
}

Answer 2

Instead of initializing another new Intent to receive the data, just do this:

String id = getIntent().getStringExtra("id");

Answer 3

//  How to send value using intent from one class to another class
//  class A(which will send data)
    Intent theIntent = new Intent(this, B.class);
    theIntent.putExtra("name", john);
    startActivity(theIntent);
//  How to get these values in another class
//  Class B
    Intent i= getIntent();
    i.getStringExtra("name");
//  if you log here i than you will get the value of i i.e. john

Answer 4

If you are trying to get extra data in fragments then you can try using :

Place data using:

Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER);

Get data using:

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {


  getArguments().getInt(ARG_SECTION_NUMBER);
  getArguments().getString(ARG_SECTION_STRING);
  getArguments().getBoolean(ARG_SECTION_BOOL);
  getArguments().getChar(ARG_SECTION_CHAR);
  getArguments().getByte(ARG_SECTION_DATA);

}

Answer 5

Kotlin

First Activity

val intent = Intent(this, SecondActivity::class.java)
intent.putExtra("key", "value")
startActivity(intent)

Second Activity

val value = getIntent().getStringExtra("key")

Suggestion

Always put keys in constant file for more managed way.

companion object {
    val PUT_EXTRA_USER = "PUT_EXTRA_USER"
}

Answer 6

If used in a FragmentActivity, try this:

The first page extends FragmentActivity

Intent Tabdetail = new Intent(getApplicationContext(), ReceivePage.class);
Tabdetail.putExtra("Marker", marker.getTitle().toString());
startActivity(Tabdetail);

In the fragment, you just need to call getActivity() first,

The second page extends Fragment:

String receive = getActivity().getIntent().getExtras().getString("name");