However, in the AVD Manager we can create and edit multiple AVDs, with different devices corresponding to different versions of Android or different hardware configurations. In this class, we will use a standardized AVD, which you'll create following the steps below. We can test the app on a real Android phone or tablet, or we can create an Android Virtual Device (AVD) for testing. Once the project is built by the IDE, we need to run it. In fact, we already have an application that will actually run! I realize that you may not understand a good portion of what you're looking at yet, and that's OK for now. This is for historical reasons and to facilitate the interoperability between Java and Kotlin.Īt this point we have the framework in place for a complete Android application. Notice that the Kotlin file created is in a sub-folder of the "java" folder. If you navigate to "Android" view in the left pane, you can see the Kotlin code created for the project in MainActivity.kt. If everything went as expected, in a minute or so you should see something closely resembling this: Why Marshmallow? Doing so will allow us to write an app that will work on many Android devices currently in use. Set the Minimum SDK to API 23 (Marshmallow). Notice that in keeping with Java standard practice, the package name is the reverse form of the company domain by default. Fill out the form to match the screenshot below.If the Quick Start dialog doesn't show, or you already have Android Studio open, from the File menu select New Project:.If the Quick Start window opens, select Start a New Android Studio Project:.Open Android Studio (if it's not open already).Google has provided a walk-through for their own version of Hello World app, but we're going to build our own. In keeping with tradition, we’ll call our first app “HelloWorld”. Be warned, since the software installation will be proven good to go, any errors after this point will most likely be your own fault and you'll no be longer allowed to blame the IDE! In addition to finally letting you get your feet wet, this will help us test our install to make sure everything is in proper working order. Now, the moment you've all been waiting for.time to build your first Android app! You may as well go ahead and bookmark it now: Here's the link to Google's Android developer site.
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