Room使用

Room 使用详解

添加依赖

AndroidX版本依赖

dependencies {
    def room_version = "2.2.0-alpha01" // 2.1.0 for latest stable version

    implementation "androidx.room:room-runtime:$room_version"
    annotationProcessor "androidx.room:room-compiler:$room_version" // For Kotlin use kapt instead of annotationProcessor

    // optional - Kotlin Extensions and Coroutines support for Room
    implementation "androidx.room:room-ktx:$room_version"

    // optional - RxJava support for Room
    implementation "androidx.room:room-rxjava2:$room_version"

    // optional - Guava support for Room, including Optional and ListenableFuture
    implementation "androidx.room:room-guava:$room_version"

    // Test helpers
    testImplementation "androidx.room:room-testing:$room_version"
}

对于Android X之前的Room版本请使用下面的依赖

dependencies {
    def room_version = "1.1.1"

    implementation "android.arch.persistence.room:runtime:$room_version"
    annotationProcessor "android.arch.persistence.room:compiler:$room_version" // For Kotlin use kapt instead of annotationProcessor

    // optional - RxJava support for Room
    implementation "android.arch.persistence.room:rxjava2:$room_version"

    // optional - Guava support for Room, including Optional and ListenableFuture
    implementation "android.arch.persistence.room:guava:$room_version"

    // Test helpers
    testImplementation "android.arch.persistence.room:testing:$room_version"
}

Android推荐的架构组件

这张图给的不错

问题

1. Update some specific field of an entity in android Room
2. Does Room support entity inheritance?

参考链接

Android Room 使用详解
Android Room 使用详解
Android Room使用
Room and RxJava
Save data in a local database using Room
Room Persistence Library（官网文档翻译）
androd Room和LiveData
Android Room 使用以及配合 RxJava
Android Room 使用指南
Android Room官方文档