You can set several options like package name, database name, database version, content authority and others. You can find releases here on GitHub. On Android Studio, you can use Gradle to generate files. Just put downloaded sqlitegenerator. It is up to you how you sort your json files inside of the path you pass to the generator. Tables and views are only recognized based on the fact that tables contain " fields " and views contains " selects ".
A configuration can be specified in your config. It should however contain the following details. A table consists of fields and constraints on a table-level. Each field can also have constraints on a field-level. You can override this by setting a field as " autoincrement ", or creating a constraint. Add the following code in your module-level build.
Now you need to execute this task at a specific point of the build process. Add the following code below the task addCurrentDate block:. The task specified in the whenReady block will be called once when the current graph is filled with tasks and ready to start executing them. Here, you specify the name of your addCurrentDate task.
Run the following command to assemble a build:. After the task has completed, go to the output directory and check if the build has been named correctly:. Similarly, you can factor out your tasks into a custom behavior for the building process as a plugin. This will allow you to reuse the same behavior in other modules you may add to your project.
To create a plugin, add the following class below the addCurrentDate task in the module-level build. Add the name of your plugin at the top of this file along with the other apply plugin definitions:. The only difference is that you define a class which implements Plugin and its single method apply Project project. Now you can verify that this plugin is doing the same thing like the task. Assemble a new build and verify the APK filename:. You can download the final project here. The Android Gradle plugin 3.
The raywenderlich. Get a weekly digest of our tutorials and courses, and receive a free in-depth email course as a bonus! Introducing unlimited access to all video courses, all books, and our new monthly live professional development series! I am a software engineer at Runtastic, Austria. I'm interested in both iOS and Android development, currently focused on the Meng has been a software engineer since He has been working in various mobile development platforms such as Android, Vijay is a husband, father and senior mobile engineer.
Based out of Canada's capital, Vijay has worked on dozens of apps for He started as a web By the end of this tutorial you should be able to Build your Android apps from the command-line Read through a Gradle build file Create your own Gradle plugin Create build flavors for profit!
If you are completely new to Android development, read through our Beginning Android Development tutorials to familiarize yourself with the basics. Note: To proceed you need to generate the keystore for your release build.
Take a look at this tutorial to find a step-by-step guide. Unlike an APK, you can't deploy an app bundle directly to a device. The easiest way to build an app bundle is by using Android Studio. However, if you need to build an app bundle from the command line, you can do so by using either Gradle or bundletool , as described in the sections below. For example, the following command builds an app bundle for the debug version of the base module:. To learn more, go to the section about how to Configure Gradle to sign your app.
You can then, for example, build the release version of your app, and Gradle automatically generates an app bundle and signs it with the signing information you provide in the build. If you instead want to sign an app bundle as a separate step, you can use jarsigner to sign your app bundle from the command line. So, while it's useful to test app bundles with bundletool and locally recreate how Google Play generates APKs, you typically won't need to invoke bundletool to build the app bundle itself—you should instead use Android Studio or Gradle tasks, as described in previous sections.
However, if you don't want to use Android Studio or Gradle tasks to build bundles—for example, if you use a custom build toolchain—you can use bundletool from the command line to build an app bundle from pre-compiled code and resources. If you haven't already done so, download bundletool from the GitHub repository. This section describes how to package your app's compiled code and resources, and how to use bundletool from the command line to convert them into an Android App Bundle.
Protobufs provide a language-neutral, platform-neutral, and extensible mechanism for serializing structured data—it's similar to XML, but smaller, faster, and simpler. You can generate your app's manifest file and resource table in protobuf format using the latest version of AAPT2 from the Google Maven repository. For example, to download version 3. During the link phase, where AAPT2 links your various compiled resources into a single APK, instruct AAPT2 to convert your app's manifest and compiled resources into the protobuf format by including the --proto-format flag, as shown below:.
You need these files when preparing the input bundletool requires to build your app bundle, as described in the following section. Before you use bundletool to generate an app bundle for your app, you must first provide ZIP files that each contain the compiled code and resources for a given app module. For example, you should create a base. After you prepare the ZIP file for each module of your app, you can pass them to bundletool to build your app bundle, as described in the following section.
To build your app bundle, you use the bundletool build-bundle command, as shown below:. The following table describes flags for the build-bundle command in more detail:. App bundles include a BundleConfig. Although bundletool creates this file for you, you can configure some aspects of the metadata in a BundleConfig. For example, you can control which categories of configuration APKs to enable or disable.
The following example of an BundleConfig. In your BundleConfig. Keep in mind, by default, bundletool does not compress your app's native libraries on Android 6. For a full description of what you can configure in your BundleConfig. If you've built and signed an app bundle, use bundletool to generate APKs and deploy them to a device. You do not need Android Studio to sign your app. You can sign your app from the command line, using apksigner for APKs or jarsigner for app bundles, or configure Gradle to sign it for you during the build.
Either way, you need to first generate a private key using keytool , as shown below:. I have a java Json parsing class and I know how to run it from gradle. What i do not know is how to save the results or that class to either of the above folders.
Below is an example of how i will be running the script. Is what i am trying to do possible in its current state?? I thinks that there's no need to use external JSON parser.
Instead use JsonSlurper. Works really well. In the task above, create a file, write the parsed content there and save it in the declared folder. That's all.
What exactly You don't know? Just for a slightly more detailed answer, I had to do something similar recently, iterating over a simple json file and generating a strings. The relevant bit from build.
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