So far, we have finished downloading Android Studio. Even if you don't have an Android phone, Studio comes with an emulator, or a virtual phone that simulates your apps. Open Studio and you should see this screen:
Creating a new Studio project takes a couple of minutes to load, after which you will see a page like the following:
If you have a Windows computer, the phone in the center will be blank, and if you have a map, the phone will have a circle-shaped button at the bottom.
Near the top of your screen, you will see an icon of the Android robot with a blue down arrow in front of it. (center icon in picture).
This is your SDK Manager. Open the button to see the following screen:
Now, at the top center of the screen, you'll see a green arrow button. Click this button to run your app. A screen will appear prompting you to choose a device. Select "launch emulator" and click the "..." button at the right side of the popup.
A new popup will appear asking to create a virtual device (emulator). At the bottom left of the screen, click "create virtual device". A screen will appear like below:
Click next and then Finish to complete creating your emulator. Now, try running your app and select the emulator you just built. In a couple of minutes, a popup screen of a phone will appear and will display your app!