Passing an object between to activities getting null object

Question

I'm trying to pass dataUser object from Register activity to Login activity. But dataUser in Login activity is null.

My DataUser class implements Serializable

RegisterActivity.java:

DataUser dataUser = new DataUser(null, null,null);

dataUser.setName(nameET.getText().toString());

dataUser.setSurname(surnameET.getText().toString());

dataUser.setEmail(emailET.getText().toString());

Bundle bundleID = new Bundle();
bundleID.putSerializable("user", dataUser);
Intent intent = new Intent(getApplicationContext(),LoginActivity.class);
intent.putExtra("bundle", bundleID);
startActivity(intent);

LoginActivity.java:

 Bundle objectUser = getIntent().getExtras();
 if (objectUser!=null){
        dataUser= (DataUser) objectUser.getSerializable("user");
        emailET.setText(dataUser.getEmail());
 }

When I'm debugging this is what I get in Register Activity: CodeRegisterActivity

dataUser and bundle aren't empty

And this is the result in LoginActivity:

login getSerializable

dataUser is null

I was trying to find the solution in other similar question, but I didn't find it. Any ideas for solving this?

see https://stackoverflow.com/questions/2139134/how-to-send-an-object-from-one-android-activity-to-another-using-intents — TWL, Aug 24 '18 at 16:42

score 1 · Answer 1 · answered Aug 24 '18 at 16:47

1

When you call get getIntent().getExtras(); you are getting a bundle that contains a bundle that contains your DataUser.

So you could either put the data user directly in the extras intent.putExtra("user" , (Serializable) dataUser);

Or get the user out of the bundle

Bundle extras = getIntent().getExtras();
Bundle bundle = extras.get("bundle");
dataUser= (DataUser) bundle.getSerializable("user");

answered Aug 24 '18 at 16:47

Zachary Sweigart

1,051
9
23

Oh I didn't realize of that, thaks a lot. Solved! – Raquel Aug 24 '18 at 16:55
I'm new here and I think I can only vote for one, if you know how can I vote for more than one let me know! – Raquel Aug 24 '18 at 17:31

score 0 · Answer 2 · answered Aug 24 '18 at 16:44

0

Pass your list in intent.putExtra(), for example

Intent intent = new Intent(getApplicationContext() , LoginActivity.class);
intent.putExtra("user" , (Serializable) dataUser );
startActivity(intent);

and for retrieve list in NextActivity

Intent intent = getIntent();
dataUser= (DataUser)intent.getSerializableExtra("user");

answered Aug 24 '18 at 16:44

Nisarg

172
6

That's it! Simple as that. Thank you so much I don't know why I was obsessed with doing with de Bundle – Raquel Aug 24 '18 at 16:53
If you find it helpful than marked it as right.Happy coding @Raquel – Nisarg Aug 24 '18 at 16:55
I'm new here and I think I can only vote for one, if you know how can I vote for more than one let me know! – Raquel Aug 24 '18 at 17:32

score 0 · Accepted Answer · answered Aug 24 '18 at 16:49

That is because you use two bundles, i mean you put in intent bundle and you have your object bundle.

try this

Intent intent = new Intent(getApplicationContext(),LoginActivity.class);
intent.putExtra("user",dataUser);
startActivity(intent);

And in your second activity try this:

 Bundle objectUser = getIntent().getExtras();
 if (objectUser!=null){
        dataUser= (DataUser) objectUser.getSerializable("user");
        emailET.setText(dataUser.getEmail());
 }

Passing an object between to activities getting null object

3 Answers3