Adham
Adham

Reputation: 64904

How do I get extra data from intent on Android?

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);

Upvotes: 867

Views: 1094104

Answers (18)

John McMillan
John McMillan

Reputation: 39

In Kotlin and Jetpack Compose, use this:

val context = LocalContext.current
val intent = Intent(context, Activity2::class.java)
intent.putExtra("name", "John")
intent.putExtra("data2","aaaa")
context.startActivity(intent)

and in Activity2:

val intent = intent
val name = intent.getStringExtra("name")
val data2 = intent.getStringExtra("data2")

You can test by writing to the logcat:

`Log.d("A2", "Name $name $data2")`

Upvotes: 2

suresh madaparthi
suresh madaparthi

Reputation: 376

A class to B class Data Sending 

A class:

Intent in = new Intent(A.this, B.class);
in.putExtra("Name", ""+user.getUserFullName());
startActivity(in);

B class:

String name = getIntent().getStringExtra("Name");

Upvotes: 0

Om Prakash Sharma
Om Prakash Sharma

Reputation: 741

Put data by intent:

Intent intent = new Intent(mContext, HomeWorkReportActivity.class);
intent.putExtra("subjectName", "Maths");
intent.putExtra("instituteId", 22);
mContext.startActivity(intent);

Get data by intent:

String subName = getIntent().getStringExtra("subjectName");
int insId = getIntent().getIntExtra("instituteId", 0);

If we use an integer value for the intent, we must set the second parameter to 0 in getIntent().getIntExtra("instituteId", 0). Otherwise, we do not use 0, and Android gives me an error.

Upvotes: 17

Dixit
Dixit

Reputation: 13056

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);

}

Upvotes: 8

Sheikh Hasib
Sheikh Hasib

Reputation: 7503

You can get any type of extra data from intent, no matter if it's an object or string or any type of data.

Bundle extra = getIntent().getExtras();

if (extra != null){
    String str1 = (String) extra.get("obj"); // get a object

    String str2 =  extra.getString("string"); //get a string
}

and the Shortest solution is:

Boolean isGranted = getIntent().getBooleanExtra("tag", false);

Upvotes: 7

Malcolm
Malcolm

Reputation: 41510

First, get the intent which has started your activity using the getIntent() method:

Intent intent = getIntent();

If your extra data is represented as strings, then you can use intent.getStringExtra(String name) method. In your case:

String id = intent.getStringExtra("id");
String name = intent.getStringExtra("name");

Upvotes: 1377

Pradeep Sheoran
Pradeep Sheoran

Reputation: 493

Pass the intent with value on First Activity:

Intent intent = new Intent(FirstActivity.this, SecondActivity.class);
intent.putExtra("uid", uid.toString());
intent.putExtra("pwd", pwd.toString());
startActivity(intent);

Receive intent on second Activity;-

Intent intent = getIntent();
String user = intent.getStringExtra("uid");
String pass = intent.getStringExtra("pwd");

We use generally two method in intent to send the value and to get the value. For sending the value we will use intent.putExtra("key", Value); and during receive intent on another activity we will use intent.getStringExtra("key"); to get the intent data as String or use some other available method to get other types of data (Integer, Boolean, etc.). The key may be any keyword to identify the value means that what value you are sharing. Hope it will work for you.

Upvotes: 2

Khemraj Sharma
Khemraj Sharma

Reputation: 59004

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"
}

Upvotes: 7

Android Geek
Android Geek

Reputation: 9225

This is for adapter , for activity you just need to change mContext to your Activty name and for fragment you need to change mContext to getActivity()

 public static ArrayList<String> tags_array ;// static array list if you want to pass array data

      public void sendDataBundle(){
            tags_array = new ArrayList();
            tags_array.add("hashtag");//few array data
            tags_array.add("selling");
            tags_array.add("cityname");
            tags_array.add("more");
            tags_array.add("mobile");
            tags_array.add("android");
            tags_array.add("dress");
            Intent su = new Intent(mContext, ViewItemActivity.class);
            Bundle bun1 = new Bundle();
            bun1.putString("product_title","My Product Titile");
            bun1.putString("product_description", "My Product Discription");
            bun1.putString("category", "Product Category");
            bun1.putStringArrayList("hashtag", tags_array);//to pass array list 
            su.putExtras(bun1);
            mContext.startActivity(su);
        }

Upvotes: 1

Rohit Singh
Rohit Singh

Reputation: 18222

Getting Different Types of Extra from Intent

To access data from Intent you should know two things.

  • KEY
  • DataType of your data.

There are different methods in Intent class to extract different kind of data types. It looks like this

getIntent().XXXX(KEY) or intent.XXX(KEY);


So if you know the datatype of your varibale which you set in otherActivity you can use the respective method.

Example to retrieve String in your Activity from Intent

String profileName = getIntent().getStringExtra("SomeKey");

List of different variants of methods for different dataType

You can see the list of available methods in Official Documentation of Intent.

Upvotes: 1

Sumit Sharma
Sumit Sharma

Reputation: 1867

//  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

Upvotes: 46

vss
vss

Reputation: 1153

We can do it by simple means:

In FirstActivity:

Intent intent = new Intent(FirstActivity.this, SecondActivity.class);
intent.putExtra("uid", uid.toString());
intent.putExtra("pwd", pwd.toString());
startActivity(intent);

In SecondActivity:

    try {
        Intent intent = getIntent();

        String uid = intent.getStringExtra("uid");
        String pwd = intent.getStringExtra("pwd");

    } catch (Exception e) {
        e.printStackTrace();
        Log.e("getStringExtra_EX", e + "");
    }

Upvotes: 2

Savita Sharma
Savita Sharma

Reputation: 344

You can also do like this
// put value in intent

    Intent in = new Intent(MainActivity.this, Booked.class);
    in.putExtra("filter", "Booked");
    startActivity(in);

// get value from intent

    Intent intent = getIntent();
    Bundle bundle = intent.getExtras();
    String filter = bundle.getString("filter");

Upvotes: 1

eva
eva

Reputation: 59

Just a suggestion:

Instead of using "id" or "name" in your i.putExtra("id".....), I would suggest, when it makes sense, using the current standard fields that can be used with putExtra(), i.e. Intent.EXTRA_something.

A full list can be found at Intent (Android Developers).

Upvotes: 2

r_allela
r_allela

Reputation: 802

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

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

Upvotes: 19

Bundit Ng
Bundit Ng

Reputation: 129

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");

Upvotes: 12

kenju
kenju

Reputation: 5954

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");
}

Upvotes: 38

NickT
NickT

Reputation: 23873

In the receiving activity

Bundle extras = getIntent().getExtras(); 
String userName;

if (extras != null) {
    userName = extras.getString("name");
    // and get whatever type user account id is
}

Upvotes: 210

Related Questions