An Android application is composed of various parts, these can be seen by expanding the folders in the project navigator. The very first time you do this, you can expect additional files to be downloaded automcatically also, so it could take even longer if your internet connection is slow Activitiy indicators appear at the bottom of the IDE, towards the right hand side which you can to see progress. The IDE will take some time to configure and build the project (depending on the speed of your computer, this could be quite a few minutes).

In Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security (pp. The impact of vendor customizations on android security. Not only does this make it more challenging for developers to include the latest technologies in their apps, it also puts consumers at risk, with researchers identifying that over 60% of vulnerabilities in Android software are due to vendor customisations (Wu et. Set the minimum API to 21: Android 5.0 (Lollipop) Unlike iOS, few Android devices are able to be updated to the latest version, as individual device manufacturers tailor the software for their devices, thus to support the majority of users, applications need to be compatible with older versions of the Android OS.Ensure the save location is somewhere you will remember

Name the application 'HelloWorld', and set the package domain as shown (you can use an alternative domain, but will need to adapt the project as appropriate at later stages).On the first screen, choose the Empty Activity template option (under Phone and Tablet) and click Next.Open Android Studio, closing any already open applications.This tutorial assumes you have already download, installed, and configured Android Studio and either setup an Android Virtual Device, or have configured an Android Device for running applications

Android studio hello world tutorial