How do I create a transparent Activity in an Android App?

This example demonstrates how to create a transparent Activity in android.

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/values/styles.xml.

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

Step 4  − Add the following code to src/MainActivity.java

package com.example.transparentactivity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
   }
}

Step 5  – Add the following code to app/manifests/AndroidManifest.xml

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