Step 1: Install Android Studio Go to http://developer.android.com/sdk/index.html to download Android Studio. Use the installer to install Android Studio following its instructions. Step 2: Open a New Project Open Android Studio. Under the "Quick Start" menu, select "Start a new Android Studio project." On the "Create New Project" window that opens, name your project "HelloWorld". If you choose to, set the company name as desired*. Note where the project file location is and change it if desired. Click "Next." Make sure on that "Phone and Tablet" is the only box that is checked. If you are planning to test the app on your phone, make sure the minimum SDK is below your phone's operating system level. Click "Next." Select "Blank Activity." Click "Next." Leave all of the Activity name fields as they are....