CODEWITHSUNDEEP
android
newbie
newbie

Reputation: 14960

How to pass value using Intent between Activity in Android?

I want to pass the value of the position in one activity class to another...

My code is as follows:

protected void onListItemClick(ListView listView, View v, int position,
            long id) {
        switch (position) {
            case 1:
                Intent newActivity1 = new Intent(this, BucketItemActivity.class);
                newActivity1.putExtra("bucketno", position);
                startActivity(newActivity1);
                break;
            case 2:
                Intent newActivity2 = new Intent(this, BucketItemActivity.class);
                newActivity2.putExtra("bucketno", position);
                startActivity(newActivity2);
                break;
    }
}

The activity class that will receive it..

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_bucket_item);
        String value = getIntent().getExtras().getString("bucketno");
        TextView textView = new TextView(this);
        textView.setTextSize(40);
        textView.setText(value);
        setContentView(textView);
    }

But i always get a null in the String value...

Please help.

Upvotes: 15

Views: 59199

Answers (7)

Rohan Prasad
Rohan Prasad

Reputation: 161

From the First Activity 

Intent i=new Intent(getApplicationContext(),BookPractionerAppoinment.class);
i.putExtra("prac","test");
startActivity(i);

Getting values in Second ACT Activity 

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

For Serialized objects:

Passing

Intent i=new Intent(getApplicationContext(),BookPractionerAppoinment.class);
 i.putExtra("prac",pract);
 startActivity(i);

Getting

pract= (Payload) getIntent().getSerializableExtra("prac");

Upvotes: 1

Srishti Roy
Srishti Roy

Reputation: 576

Bundle extras = getIntent().getExtras();

if (extras != null) { 
    String data = intent.getExtras().getString("key").toString();
}

Upvotes: 2

Arash GM
Arash GM

Reputation: 10395

You can use :

In first activity ( MainActivity page )

Intent i = new Intent(MainActivity.this,SecondActivity.class); 
i.putExtra("YourValueKey", yourData.getText().toString());

then you can get it from your second activity by :
In second activity ( SecondActivity page )

Intent intent = getIntent();
String YourtransferredData = intent.getExtras().getString("YourValueKey");

Upvotes: 15

Samir
Samir

Reputation: 6615

In addition who has different sittuation 

  double userDMH = Util.getInstance(TakeInfoOne.this).calculateBMH(userGender, kg, talll, currentAge, activityy);
                        Intent intentTogeneral = new Intent(TakeInfoOne.this, TakeInfoTwo.class);
                        intentTogeneral.putExtra("user_current_age",userDMH );
                        startActivity(intentTogeneral);

If you put other primitives like double , boolean , int just dont forget to type correct format while geting the value in secont Activity

Bundle extras = getIntent().getExtras();
    if (extras != null) {
        double value =  extras.getDouble("user_current_age");
        txt_metabolism.setText(""+value);
    }

Here with extras.getDouble() type your concerned value type like 

extras.getInt("user_current_age");
extras.getBoolean("user_current_age");
 extras.getString("user_current_age");

Upvotes: 0

user2972345
user2972345

Reputation: 1

Use:

String value = getIntent().getExtras().get("key").toString();

getIntent().getExtras() will give you Boundle. get() method can be used to fetch the values.

Upvotes: 0

Phil
Phil

Reputation: 36289

String value = Integer.toString(getIntent().getExtras().getInt("bucketno"));

Upvotes: 4

Andro Selva
Andro Selva

Reputation: 54332

Replace this, 

String value = getIntent().getExtras().getString("bucketno");

with 

int value = getIntent().getExtras().getInt("bucketno");

You are trying to pass int value but retrieving String Data. That's why you are getting the nullpointerException.

Upvotes: 23

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