Android Getting Data From Another Class

Question

I am getting started to Android. I want to get data from another class. I writed some codes but they didn't work. Please help me.

First Activity :

Button b1=(Button) findViewById(R.id.search);

    b1.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
        Intent a=new Intent(CActivity.this,Db.class);
        a.putExtra("data",bcode);
         startActivity(a);
        }});

Second Activity:

Bundle extra=getIntent().getExtras();
    {
    dContents=extra.getString("data");
    }

Take a look on http://stackoverflow.com/questions/4233873/how-to-get-extra-data-from-intent-in-android. Please Search before ask. — Bhoomika Brahmbhatt, Jul 17 '13 at 08:38
@geet I've read question and answers about this topic but they didn't solve my problem. — Adaichi, Jul 17 '13 at 08:45

score 0 · Answer 1 · answered Jul 17 '13 at 08:37

0

In Second Activity,remove all the codes to get the data from the intent and try this

dContents = getIntent().getStringExtra("data");

I assume data is string.

answered Jul 17 '13 at 08:37

vinothp

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@Adaichi I think you passing null value thats why you didn't receive anything. First check what you passing in FirstActivity – vinothp Jul 17 '13 at 09:01
I've checked for this. But there is no change. – Adaichi Jul 17 '13 at 09:05
What do you mean no change? Whats the value you passing in First Activity? – vinothp Jul 17 '13 at 09:08

score 0 · Answer 2 · answered Jul 17 '13 at 08:37

0

Try

dContents=getIntent().getStringExtra("data");

instead of

Bundle extra=getIntent().getExtras();
    {
    dContents=extra.getString("data");
    }

Hope this helps.

answered Jul 17 '13 at 08:37

MysticMagicϡ

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I think both the code are same. getStringExtra("data") does the same thing as extra.getString("data") – oks16 Jul 17 '13 at 08:42
Sorry, it didn't work. – Adaichi Jul 17 '13 at 08:47

score 0 · Answer 3 · answered Jul 17 '13 at 08:40

0

Do this in you second class file.

Intent i = getIntent();

String str = i.getExtra("data");

answered Jul 17 '13 at 08:40

Narendra Pal

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chathun · Answer 4 · 2013-07-17T09:02:04.187

This Is worked to me

First Activity (Set data and start Activity)

           String shocode="0003";
           String shopname="CCT";
           Intent i = new  Intent(getApplicationContext(),Frame_unproductuv.class);       
                    i.putExtra("shopcode", shocode);
                    i.putExtra("shopname", shopname);
                    startActivity(i);

Second Activity (Get Data)

              Intent intent = getIntent();
              Bundle b = intent.getExtras();
              route_name = b.getString("shopname");

chr.solr · Answer 5 · 2013-07-17T09:34:31.590

Try:

// store data to be pass to next activity
Intent mIntent = new Intent(this, SecondActivity.class);
mIntent.putExtra("key", yourString);
startActivity(mIntent);


// extract data from previous activity
if (getIntent() != null) {
String mString = getIntent().getExtras().getString("key");
    // do what you going to do with string.
} else {
    Toast.makeText(getApplicationContext(), "getIntent() = null", Toast.LENGTH_LONG).show();
}

I believe that if you using Bundle to retrieve the string you got to use getStringExtra() and if you using Intent to retrieve the data you use getString().

score 0 · Answer 6 · answered Jul 17 '13 at 09:29

Why not save the data as a string in your first class then simply retrieve it from your second

String shopname = "enteredshopname";

then from your second class

String getShopName = MainActiviy.shopname;

you can then do whatever setText etc that you need to

Android Getting Data From Another Class

6 Answers6