Realizar petición HTTP utilizando el método POST en Android con Volley - Operating systems, scripting, PowerShell and security

activity_main.xml
[crayon-6a61a25417dd3584422182/]
AndroidManifest.xml
[crayon-6a61a25417dd9686089842/]
MainActivity.java
[crayon-6a61a25417ddb587196176/]
build.gradle (Module: app)
[crayon-6a61a25417ddc401731904/]