How to pass values between Activities Android ?

How to pass values between Activities Android ?

How to pass values between Activities Android ? is the familiar question from all the android developers. As a android developer apart from learning navigation between screens, important to understand how to pass values between activities is also mandatory thing to know to develop any android apps.

How to pass values between Activities Android ?

 

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In this program we are passing the values from the screen 1 to screen 2, which is technically a passing the values between the activities.

 

 

 

Before learning How to pass values between Activities Android ? its recommended to learn navigate between android activities,

Android Navigation Example

 

 

MainActivity.java:

package in.javadomain.screennavigationpassvalue;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends ActionBarActivity {
    Button screen1Button;
    EditText txtValue;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        screen1Button = (Button) findViewById(R.id.btnMainPage);
        txtValue = (EditText) findViewById(R.id.editText);

        screen1Button.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {
                Intent intent = new Intent("in.javadomain.screennavigationpassvalue.MainActivity1");
                intent.putExtra("screen1_value", txtValue.getText().toString());
                startActivity(intent);
            }
        });
    }
}

 

 

MainActivity1.java:

package in.javadomain.screennavigationpassvalue;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.EditText;

/**
 * Created by Naveen on 12/30/2014.
 */

public class MainActivity1 extends ActionBarActivity{
    EditText screen2EditTxt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main1);
        Intent intent = getIntent();
        String message = intent.getStringExtra("screen1_value");
        screen2EditTxt = (EditText) findViewById(R.id.editText2);
        screen2EditTxt.setText(message);
    }
}

 

 

activity_main.xml:

<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Android Value Passing from one Screen to Another screen"
        android:id="@+id/textView"
        android:layout_alignParentTop="true"
        android:layout_marginTop="59dp"
        android:layout_alignLeft="@+id/btnMainPage"
        android:layout_alignStart="@+id/btnMainPage"
        android:layout_alignRight="@+id/btnMainPage"
        android:layout_alignEnd="@+id/btnMainPage" />

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/editText"
        android:layout_marginTop="59dp"
        android:width="250dp"
        android:layout_below="@+id/textView"
        android:layout_centerHorizontal="true" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Click to Pass Value to Next Screen"
        android:id="@+id/btnMainPage"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="www.Javadomain.in"
        android:id="@+id/textView2"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />

</RelativeLayout>

 

 

activity_main1.xml:

<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="www.Javadomain.in"
        android:id="@+id/textView3"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Android Value Passing from one Screen to Another screen"
        android:id="@+id/textView"
        android:layout_alignParentTop="true"
        android:layout_marginTop="59dp" />

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/editText2"
        android:width="150dp"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true" />
</RelativeLayout>

 

 

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="in.javadomain.screennavigationpassvalue" >

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="in.javadomain.screennavigationpassvalue.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity
            android:name="in.javadomain.screennavigationpassvalue.MainActivity1"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="in.javadomain.screennavigationpassvalue.MainActivity1" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

    </application>

</manifest>

 

 

Output Screenshots:

activity_pass_value_output

android activity screen 2 value passing

 

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