StartActivityForResult Demo

 Demo:

1)Calling Activity:

 

package com.venky.startactivityforresult;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

public class CallingActivity extends Activity implements OnClickListener {

      /** Called when the activity is first created. */

      TextView tvResult;

      EditText edtFirstNumber, edtSecondNumber;

      @Override

      public void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.main);

            tvResult = (TextView) findViewById(R.id.textView1);

            edtFirstNumber = (EditText) findViewById(R.id.editText1);

            edtSecondNumber = (EditText) findViewById(R.id.editText2);

            Button btnCalculateResult = (Button) findViewById(R.id.button1);

            btnCalculateResult.setOnClickListener(this);

      }

      @Override

      public void onClick(View v) {

            // TODO Auto-generated method stub

            int fNumber, sNumber;

            fNumber = Integer.parseInt(edtFirstNumber.getText().toString().trim());

            sNumber = Integer.parseInt(edtSecondNumber.getText().toString().trim());

            edtFirstNumber.setText("");

            edtSecondNumber.setText("");

            Intent intent = new Intent(getApplicationContext(),

                        CalledActivity.class);

            intent.putExtra("num1", fNumber);

            intent.putExtra("num2", sNumber);

            startActivityForResult(intent, 1);

      }

      @Override

      protected void onActivityResult(int requestCode, int resultCode, Intent data) {

            // TODO Auto-generated method stub

            super.onActivityResult(requestCode, resultCode, data);

            tvResult.setText("Sum is =>" + data.getIntExtra("result", 0));

      }

}

2)Called Activity:

 

package com.venky.startactivityforresult;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

public class CalledActivity extends Activity {

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            // TODO Auto-generated method stub

            super.onCreate(savedInstanceState);

            Intent intent = getIntent();

            int num1 = intent.getIntExtra("num1", 0);

            int num2 = intent.getIntExtra("num2", 0);

            int result = num1 + num2;

            intent.putExtra("result", result);

            setResult(2, intent);

           

            finish();

      }

}

3)main.xml:

 

<?xml version="1.0" encoding="utf-8"?>

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

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:background="#5F04B4"

    android:orientation="vertical" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginTop="30dp"

        android:text="Enter First Number"

        android:textAppearance="?android:attr/textAppearanceMedium" />

    <EditText

        android:id="@+id/editText1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

        <requestFocus />

    </EditText>

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginTop="20dp"

        android:text="Enter Second Number"

        android:textAppearance="?android:attr/textAppearanceMedium" />

    <EditText

        android:id="@+id/editText2"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:inputType="number" />

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="center"

        android:layout_marginTop="20dp"

        android:text="Caluculate Sum"

        android:textSize="20dp" />

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginTop="30dp"

        android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>

4)Download this Project Click Here