Sending Data from One Activity to Other in Android

با سلام خدمت دوستان

این مطلب در  یکی از سایت های لاتین پیدا کردم.اینقدر شیوا و ساده توضیخ داده که اصلا نیازی به ترجمه ندارد،لذا اگر متوجه نمشوید که سناریو پیاده شده یا قسمتی از کد رو ،اشاره کنید تا خدمتتون توضیح بدم

با تشکر

Edit your main.xml file add two  textviews, two edittexts, and  a button.

It should look like (you can just copy the following xml code and paste in main.xml file)

main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent" 

    android:orientation="vertical">

    <TextView 

        android:text="Name"

        android:layout_height="wrap_content"

        android:layout_width="fill_parent"/>

    

      <EditText 

        android:id="@+id/name"

        android:layout_height="wrap_content"

        android:layout_width="fill_parent"/>

      <TextView 

        android:text="Phone Number"

        android:layout_height="wrap_content"

        android:layout_width="fill_parent"/>

      <EditText 

        android:id="@+id/phone"

        android:layout_height="wrap_content"

        android:layout_width="fill_parent"/>

      <Button 

        android:id="@+id/button"

        android:text="OK"

        android:layout_height="wrap_content"

        android:layout_width="fill_parent"/>

</LinearLayout>

Now open the FirstActivity class and write following

 FirstActivity.java

public class FirstActivity extends Activity 

{

     @Override

     public void onCreate(Bundle savedInstanceState)

     {

     super.onCreate(savedInstanceState);

     setContentView(R.layout.main);

     Button button=(Button)findViewById(R.id.button);

     final EditText editTextName=(EditText)findViewById(R.id.name);

     final EditText editTExtPhone=(EditText)findViewById(R.id.phone);

    

    

     // add button onClick Listener

     button.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {

// TODO Auto-generated method stub

String name=editTextName.getText().toString();

long phone=Long.parseLong(editTExtPhone.getText().toString());

// create a new intent

Intent intent =new Intent(getApplicationContext(),SecondActivity.class);

// put the name and phone(to be sent to other activity) in intent

intent.putExtra("PERSON_NAME", name);

intent.putExtra("PHONENUMBER", phone);

// start the second activity

startActivity(intent);

}

});

     }

    

}

Edit your SecondActivity class

Point to Note(To Rememeber)

intent.putExtra("PERSON_NAME", name);

we have put the name in intent with "PERSON_NAME" tag, we will fetch name in second activity with same tag(see second activity).  similarly we can send and fetch any type of data.

SecondActivity.java (Do not forget to declare this activity in manifest file)

public class SecondActivity extends Activity 

{

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

// extract the name and phone from intent

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

long phoneNumber=getIntent().getLongExtra("PHONENUMBER", 0);

TextView tv=new TextView(this);

tv.setTextSize(20);

String str="NAME : "+name+"\nPhone Number : "+phoneNumber;

tv.setText(str);

setContentView(tv);

}

}

Now run the application, you will see the following