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Saturday, May 21, 2016

Bundle in Android (passing data between activity’s using bundle class)

activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Enter name"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/namedit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="textPersonName" >

        <requestFocus />
    </EditText>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Enter phone number"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/phedit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="number" />

    <Button
        android:id="@+id/sendbutton1"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="20dp"
        android:text="Send"
        android:textSize="20sp" />

</LinearLayout>
MainActivity.java
package com.blogspot.kantapp.bundleinandroid;
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.Toast;

public class MainActivity extends Activity {
    EditText nameEdit,phnumberEdit;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //Setup UI
        nameEdit = (EditText)findViewById(R.id.namedit);
        phnumberEdit = (EditText)findViewById(R.id.phedit);

        Button sendBtn = (Button)findViewById(R.id.sendbutton1);
        sendBtn.setOnClickListener(new OnClickListener() {

            //Listner for button
            @Override
            public void onClick(View arg0) {

                //Getting data from EditText
                String name = nameEdit.getText().toString();
                String phnumber = phnumberEdit.getText().toString();

                if(name.length()==0&&phnumber.length()==0){
                    Toast.makeText(getApplicationContext(), "plz enter all details", Toast.LENGTH_SHORT).show();

                }else{
                    //Converting phnumber to long type
                    long phno = Long.parseLong(phnumber);


                    //Creating Bundle object
                    Bundle b = new Bundle();

                    //Storing data into bundle
                    b.putString("myname", name);
                    b.putLong("phnum", phno);

                    //Creating Intent object
                    Intent in = new Intent(getApplicationContext(), Second.class);

                    //Storing bundle object into intent
                    in.putExtras(b);


                    startActivity(in);

                }


            }
        });
    }

}
second.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView1name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/textView2phnumber"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>
Second.java
package com.blogspot.kantapp.bundleinandroid;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;

public class Second extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.second);

        TextView nameText = (TextView)findViewById(R.id.textView1name);
        TextView phText = (TextView)findViewById(R.id.textView2phnumber);


        // getIntent():Return the intent that started this activity.
        Intent in = getIntent();

        //Getting bundle
        Bundle b = in.getExtras();

        //Getting data from bundle
        String name = b.getString("myname");
        long phnumber = b.getLong("phnum");

        //Converting long type to String
        String phno = Long.toString(phnumber);

        //Binding values to TextViews
        nameText.setText("name :"+name);
        phText.setText("phnumber :"+phno);


    }

}

AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.blogspot.kantapp.bundleinandroid">

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

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

</manifest>

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