At this point, you are required to provide a name for your library, module name, package name and minimum SDK. You will be at the Configure the new module step of the wizard. Inside your Android Studio, click File\New\NewModule… Let’s get rolling! Creating the Android Library Next up you are going to create the Android library which will validate the entered text in the fields. You will see it does not do anything right now. You will be defining more ext variables in this tutorial and referencing them in the same way later on.īuild and run the app. When you tap the Validate button, you’ll pass the text entered in the EditText fields and validate them via already declared methods.Īnother thing to note is the usage of the ext variable from the project’s adle file in the app/adle file. ![]() MainActivity contains three EditText which you can use to enter email, password and credit card number. Take some time to familiarize yourself with the project before you carry on. Be sure to accept any prompts to update to the latest Gradle plugin or to download the correct build tools. If not, start up Android Studio and select Open an existing Android Studio project from the welcome screen, again choosing the top-level project folder for the starter project you just downloaded. If you already have Android Studio open, click File\Import Project and select the top-level project folder you just downloaded. Inside, you will find the XML Layouts and associated Activities containing some boilerplate code for the app, along with helper scripts for publishing the Android library to Bintray, and some resources such as Drawables and Strings that you’ll use later on in this tutorial. Phew! Looks like you are all set to embark on the journey to becoming a better Android Library developer! Let’s dive right into it! :] Getting Startedīegin by downloading the materials for this tutorial at the top or bottom of the page. ![]() Better still you did not have to spend a lot of time managing an Android library but your code is going to get used by others. The advantage of that is huge because you helped to make the ecosystem better and in the process helped a lot of other Android developers. Brownie points to you if you decide to solve the problem and contribute back to the existing Android library. If a solution already exists then use that, and if it does not solve your issue then you could make a request for the feature in the existing Android library. It’s important to note, however, that the reason to create an Android library should not just be because you think so. And hopefully a bigger group of Android developers will benefit from your Android library. At the very least, it is going to save you precious time in the future when you revisit the same problem. If you spent some time solving a problem and believe that others might be facing the same problem, then abstract it into an Android Library. The above holds true for every library and not only for Android library development. Along with that, you also need to make sure that the API users are clear about its intended use and limitations. In case of library/SDK development, the goal should be to design better APIs so as to enable intended usage. Best practices, if defined and followed, could make things more streamlined. What that means is that developers come up with their own version of the solution and usually that leads to inconsistencies. At the same time, there are no set standards around building Android libraries. It is in these situations when packaging that code as an Android Library/SDK makes the most sense.Įvery Android developer is different in their own ways. The end goal of every library developer is to simplify abstract complexities of code and package the code for others to reuse in their projects.Īs Android developer, you often come across situations where some code is a good candidate to get reused in the future. You’ll also need Android Studio 3.0 or later, and to publish your library you’ll need to have a GitHub account.Ĭode reuse has been around since the advent of code, and Android is no exception. ![]() Other prerequisites include knowledge of using the bash/Terminal, git and Gradle. Note: If you’re new to Android Development, it’s highly recommended that you work through Beginning Android Development and Kotlin for Android to get a grip on the basic tools and concepts.
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