In Android, you will get the clipboard functionality used to copy and paste various kinds of data. You can implement the Clipboard functionality on Android with the help of a library ClipboardManager and ClipData.item. The example below will demonstrate the use of ClipboardManager class for your android application. The steps you need to follow to implement the Clipboard application include:

1.You will need to create an application under a package – com.firstapp.ashulakhwan.greatlearning

2.Next, you need to modify the file named MainActivity.java with the following code:

package com.firstapp.ashulakhwan.greatlearning;

package com.firstapp.ashulakhwan.greatlearning;

import android.content.ClipData;
import android.content.ClipboardManager;
import android.os.Bundle;

import android.support.v8.app.ActionBarActivity;
import android.view.View;

import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;


public class MainActivity extends ActionBarActivity {
   EditText edit1, edit2;
   Button btn1, btn2;

   private ClipboardManager firstClipboard;
   private ClipData firstClip;

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

      edit1 = (EditText) findViewById(R.id.editText);
      edit2 = (EditText) findViewById(R.id.editText2);

      btn1 = (Button) findViewById(R.id.button);
      btn2 = (Button) findViewById(R.id.button2);

      firstClipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);

      btn1.setOnClickListener(new View.OnClickListener() {
         
         @Override
         public void onClick(View v) {
            String text;
            text = edit1.getText().toString();

            firstClip = ClipData.newPlainText("text", text);
            firstClipboard.setPrimaryClip(firstClip);

            Toast.makeText(getApplicationContext(), "The text is copied", 
               Toast.LENGTH_SHORT).show();
         }
      });

      btn2.setOnClickListener(new View.OnClickListener() {
         
         @Override
         public void onClick(View v) {
            ClipData txt = firstClipboard.getPrimaryClip();
            ClipData.Item item = txt.getItemAt(0);

            String text = item.getText().toString();
            edit2.setText(text);

            Toast.makeText(getApplicationContext(), "The copied text is pasted.", 
               Toast.LENGTH_SHORT).show();
         }
      });
   }

}

3.After that, you are required to modify the XML layout file which is named activity_main.xml and the content is shown below:

<?xml version="1.0" encoding="utf-8"?>
<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:text="Great Learning"
      android:id="@+id/textView"
      android:layout_below="@+id/textview"
      android:layout_centerHorizontal="true"
      android:textColor="#d5d630"
      android:textSize="40dp" />
   
   <TextView android:text="ClipboardExample" android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/textview"
      android:textSize="40dp"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true" />
      
   <ImageView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/imageView"
      android:layout_below="@+id/textView"
      android:layout_centerHorizontal="true" />
      
   <EditText
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/editText"
      android:layout_alignParentRight="true"
      android:layout_alignParentEnd="true"
      android:hint="Copy the text"
      android:layout_below="@+id/imageView"
      android:layout_alignLeft="@+id/imageView"
      android:layout_alignStart="@+id/imageView" />
      
   <EditText
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/editText2"
      android:layout_alignLeft="@+id/editText"
      android:layout_alignStart="@+id/editText"
      android:hint="paste the copied text"
      android:layout_below="@+id/editText"
      android:layout_alignRight="@+id/editText"
      android:layout_alignEnd="@+id/editText" />
      
   <Button
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Copy"
      android:id="@+id/button"
      android:layout_below="@+id/editText2"
      android:layout_alignLeft="@+id/editText2"
      android:layout_alignStart="@+id/editText2" />
      
   <Button
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Paste"
      android:id="@+id/button2"
      android:layout_below="@+id/editText2"
      android:layout_alignRight="@+id/editText2"
      android:layout_alignEnd="@+id/editText2" />
      
</RelativeLayout>

4. In the next step, you will need to modify the AndroidManifest.xml with the code shown below:
 

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

   <application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme" >
      
      <activity
         android:name="com.firstapp.ashulakhwan.greatlearning.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>
   </application>

</manifest>

At last, you can run the application and check the results of your application.