Android Room 数据库 - 未解析的引用 @Entity 和其他注释 [英] Android Room Database - Unresolved reference @Entity and other annotations

问题描述

我在我的应用中使用 Android Room Persistence 库 (v.1.0.0-alpha1).虽然它工作正常，但当我在 Android Studio 中打开模型类(Kotlin 数据类)时，它显示了用于 Room 数据库的所有注释的未解析引用，例如 @Entity、@ColumnInfo 等.我尝试将 arch 库的版本更改为 1.0.0-alpha5，但结果相同.

I am using Android Room Persistence library (v.1.0.0-alpha1) in my app. Although it is working fine, when I open model class (Kotlin Data class) in Android studio, it shows Unresolved reference for all annotations used for Room database like @Entity, @ColumnInfo etc. I tried changing version of arch library to 1.0.0-alpha5 but result was same.

在 Lint 检查中，它为所有导入的注释显示删除不推荐使用的符号导入.AS 之前没有显示此错误.

In Lint inspection it is showing Remove deprecated symbol import for all imported annotations.AS was not showing this error previously.

我该如何解决这个问题

编辑以下是我在 build.gradle 中添加的导入

Edit Following are imports I have added in my build.gradle

compile "android.arch.persistence.room:runtime:1.0.0-alpha5"

compile "android.arch.persistence.room:rxjava2:1.0.0-alpha5"

annotationProcessor "android.arch.persistence.room:compiler:1.0.0-alpha5"

kapt "android.arch.persistence.room:compiler:1.0.0-alpha5"

推荐答案

这里有一个例子.

https://github.com/jsperk/PocRoom

记住，你需要添加:

Gradle(项目)--> maven

Gradle (Project)--> maven

Gradle(模块应用)依赖 -->

Gradle (Module App) dependencies -->

implementation "android.arch.persistence.room:runtime:1.0.0"
annotationProcessor "android.arch.persistence.room:compiler:1.0.0"
testImplementation "android.arch.persistence.room:testing:1.0.0"
implementation "android.arch.persistence.room:rxjava2:1.0.0"

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