The application and advantages of the HILT Android framework technology in the Java class library

The application and advantage of the Hilt Android framework technology in the Java class library introduction: In Android development, dependency injection is a common design model that can improve the maintenance, testability and scalability of code.Hilt Android framework technology is one of the Android dependency injection solutions. It combines Dagger and Jetpack components to provide developers with convenient dependency injection methods.This article will introduce the application and advantages of the Hilt Android framework technology in the Java class library, and provide the corresponding example code. 1. Introduction to Hilt Android Hilt is a dependent injection framework launched by Google, a layer of packaging of Dagger 2.Dagger is a powerful dependency injection framework, but it is more complicated to use.The emergence of HILT simplifies the Dagger's use process, and provides a more likely to get started to rely on injecting solutions. Second, the application of hilt android 1. Add dependencies First, add the corresponding dependencies to the project's Build. Gradle file: groovy dependencies { implementation 'com.google.dagger:hilt-android:2.x.y' kapt 'com.google.dagger:hilt-compiler:2.x.y' } 2. Create the Application class Create an Application class that inherits from Hilt, such as::: @HiltAndroidApp public class MyApplication extends Application { // Application entrance } 3. Definition dependencies Use HILT annotations to define the dependencies of the class.For example, in a repository class: @Singleton public class UserRepository { // Repository's implementation } 4. Injecting dependencies In the place where you need to use the dependencies, use the annotation of HILT for injection.For example, in an Activity: @AndroidEntryPoint public class MainActivity extends AppCompatActivity { @Inject UserRepository userRepository; // ... } The above is the general application process of Hilt Android, which simply achieved dependence injection. Third, the advantage of Hilt Android 1. Simplified configuration Compared with the native Dagger, HILT provides a simple and easy -to -use annotation and code generation tool to make the configuration process more simplified. 2. Integrated Jetpack Hilt Android is closely integrated with the Jetpack component, which can easily use dependency injection in various components of Jetpack. 3. Automatically generate code HILT can automatically generate code according to the annotation, eliminating the steps to manually write a lengthy dependency injection code. 4. Provide testability Dependent injection can help decoupling code and make unit test easier.The emergence of Hilt Android simplifies the process of dependence injection and provides better testability. in conclusion: The applications and advantages of Hilt Android framework technology in the Java class library are mainly reflected in its simplified configuration process, close integration with Jetpack components, automatic generating code functions, and providing better testability.The use of Hilt Android can easily achieve dependency injection and improve the maintenance, testability and scalability of code. The above is an introduction to the application and advantages of the Hilt Android framework technology in the Java library. I hope it will be helpful to you.