docs: Improve the developer documentation for Asgardeo-Android SDK

android/README.md

@@ -23,3 +23,85 @@ To see the full details on how to integrate the Asgardeo Android SDK, refer to f
 ## Architecture of the Asgardeo Android SDK
 
 The full details on the architecture of the Asgardeo Android SDK can be found [here](./ARCHITECTURE.md).
+
+## Development of the Asgardeo Android SDK
+
+The Asgardeo Android SDK is developed using Kotlin and is built using the Android SDK. The SDK is developed to be optimized with the MVVM architecture.
+
+### Setup the Development Environment
+
+- Required versions.
+    - [Android Studio](https://developer.android.com/studio) Giraffe (2020.3.1) or later.
+    - Java 17 or later.
+
+### Build the SDK
+
+1. Clone the repository.
+2. Open the project in Android Studio, and select the project to open with an `Android view` from the project view selection.
+3. You may require to sync the gradle files again. This can be done using the `Sync project with Gradle files` icon in the top right hand corner of the IDE (or in Apple `Shift + Command + O`).
+4. Build the project using the following command.
+    ```shell
+    ./gradlew clean build
+    ```
+    This can also be done using the [Gradle side panel in Android Studio](https://www.jetbrains.com/help/idea/jetgradle-tool-window.html).
+
+### Release the SDK to Local Maven Repository
+
+1. Now you can make changes to the SDK. Once you have made the changes, you can build the SDK again using the above command.
+2. After building the SDK, you can release the SDK to the local Maven repository using the following command.
+    ```shell
+    ./gradlew clean assembleRelease
+    ./gradlew publishToMavenLocal
+    ```
+    This will publish the SDK to the local Maven repository. You can find the SDK in the following location.
+    ```
+    ~/.m2/repository/org/io/asgardeo/asgardeo-android/<MAIN_VERSION>
+    ```
+    You can also find the SDK in the `External Libraries` section in the project view of Android Studio.
+3. Note the version of the SDK that you have released to the local Maven repository. You can find the version in the `gradle.properties` file in the root of the SDK project, in the variable `MAIN_VERSION`.
+
+> [!CAUTION]
+> When commiting changes to the Github, make sure <b>NOT TO UPDATE</b> the version of the SDK in the `gradle.properties` file. This should be updated only when releasing the SDK to the Maven repository using the [release Github Action](https://github.com/asgardeo/mobile-ui-sdks/actions/workflows/release.yml).
+
+### Test the Changes
+
+You can test the changes by running any Android application and including the SDK as a dependency. But it is recommended to use the sample application provided in [wso2/sample-is](https://github.com/wso2/samples-is/tree/master/petcare-sample/b2c/mobile-app/petcare-with-sdk) repository.
+
+#### Setup the Sample Application
+
+1. Clone the [wso2/sample-is](https://github.com/wso2/samples-is) repository.
+2. Open the `petcare-with-sdk`(<SAMPLE-IS>/petcare-sample/b2c/mobile-app/petcare-with-sdk) project in Android Studio.
+3. Read this [documentation](https://github.com/wso2/samples-is/blob/master/petcare-sample/b2c/mobile-app/petcare-with-sdk/README.md) and setup the sample application with the necessary configurations to test your changes.
+
+#### Include the changed SDK in the Sample Application
+
+1. Open the `libs.version.toml` file in the root of the sample application and change the version of the SDK to the version that you have released to the local Maven repository.
+    ```toml
+    [versions]
+    ...
+    asgardeoAndroid = "1.0.0-SNAPSHOT"
+    ...
+    ```
+
+2. Open the `settings.gradle` file in the root of the sample application and include `mavenLocal()` in the repositories.
+    ```gradle
+    pluginManagement {
+        repositories {
+            ...
+            mavenLocal()
+        }
+    }
+
+    dependencyResolutionManagement {
+        repositories {
+            ...
+            mavenLocal()
+        }
+    }
+    ```
+
+3. Build and run the sample application using the above mentioned [documentation](https://github.com/wso2/samples-is/blob/master/petcare-sample/b2c/mobile-app/petcare-with-sdk/README.md).
+
+### Create a Pull Request
+
+After testing the changes, you can create a pull request to the [asgardeo/mobile-ui-sdks](https://github.com/asgardeo/mobile-ui-sdks/) repository. For more details about this, refer to the [CONTRIBUTING.md](../CONTRIBUTING.md) file.