我如何让 Dagger 和 Butterknife 与 Gradle 一起工作?

问题描述

我的项目使用 Butterknife 进行了视图注入，效果很好.但是我需要添加 Dagger 以注入依赖项.

I had my project working great with Butterknife to do view injection. But I then needed to add Dagger in order to inject dependencies.

我添加了 Annotation Processor Tool Gradle 插件和适当的 Dagger 要求(为了简洁，只显示修改的部分);

I added the Annotation Processor Tool Gradle plugin with the appropriate Dagger requirement (Only showing the modified parts for brevity);

buildScript {
    repositories {
        maven {
            url "https://oss.sonatype.org/content/repositories/snapshots/"
        }
    }
    dependencies {
        ...
        classpath 'com.jimdo.gradle:gradle-apt-plugin:0.2-SNAPSHOT'
    }
}

apply plugin: 'apt'

dependencies {
    apt "com.squareup.dagger:dagger-compiler:${daggerVersion}"

    ...
}

此时，当我构建和运行应用程序时，用 @InjectView 注释标记的属性不会被注入 Butterknife 发出的以下调试消息；

At this point now when I build and run the application the properties marked with the @InjectView annotation are not getting injected with the following debug messages emitted by Butterknife;

D/ButterKnife﹕ Looking up view injector for com.example.MainActivity
D/ButterKnife﹕ Not found. Trying superclass com.example.FactListAbstractActivity
D/ButterKnife﹕ Not found. Trying superclass android.app.Activity

推荐答案

原来我需要做的就是添加另一个 apt 依赖项，以便让 Annotation Processor Tool 拾取包含在 Butterknife 中的处理器.这是作为编译时依赖项的补充；

Turns out all I needed to do was add another apt dependency in order to have the Annotation Processor Tool pickup the processor included in Butterknife. This is in addition to including it as a compile time dependency;

dependency {
    apt "com.jakewharton:butterknife:${butterknifeVersion}"

    compile "com.jakewharton:butterknife:${butterknifeVersion}"
}

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