How to add a border to the top and bottom of an Android View?

This example demonstrates how to add a border to the top and bottom of an Android View .

Step 1  − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2  − Add the following code to res/drawable/border_top_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="https://schemas.android.com/apk/res/android">
   <item>
      <shape android:shape="rectangle">
         <stroke
            android:width="2dp"
            android:color="#e10606" />
         <solid android:color="#9bce64" />
      </shape>
   </item>
   <item android:bottom="2dp" android:top="2dp">
      <shape android:shape="rectangle">
         <stroke android:width="2dp" android:color="#9bce64" />
      </shape>
   </item>
</layer-list>

Step 3  − Add the following code to res/layout/top_bottom_border_in_android_view.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="https://schemas.android.com/apk/res/android"
   android:orientation="vertical"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:layout_margin="16dp">
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Adding Border in Top and Bottom of an Android View" />
   <TextView
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:layout_marginTop="16dp"
      android:background="@drawable/border_top_bottom"
      android:padding="30dp"
      android:text="Top Bottom Border in TextView"
      android:textColor="#000000"
      android:textSize="18sp" />
   <Button
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:layout_marginTop="16dp"
      android:background="@drawable/border_top_bottom"
      android:text="Top Bottom Border in Button" />
</LinearLayout>

Step 4  − Add the following code to res/layout/strings.xml

<resources>
   <string name="app_name">Adding Border to an Android View</string>
</resources>

Step 5  − Add the following code to res/layout/activity_main.xml.

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
   xmlns:android="https://schemas.android.com/apk/res/android"
   xmlns:app="https://schemas.android.com/apk/res-auto"
   xmlns:tools="https://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   tools:context=".MainActivity">
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Hello World!"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintLeft_toLeftOf="parent"
      app:layout_constraintRight_toRightOf="parent"
      app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

Step 6  − Add the following code to src/MainActivity.java

package com.example.sample1;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.top_bottom_border_in_android_view);
   }
}

Step 7  − Add the following code to Manifests/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="https://schemas.android.com/apk/res/android"
   xmlns:dist="https://schemas.android.com/apk/distribution"
   package="com.example.sample1">
   <application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:roundIcon="@mipmap/ic_launcher_round"
      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>
   </application>
   <dist:module dist:instant="true" />
</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and Click Run  Icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen –