Eclipse 不会为 Butter Knife 生成 .apt_generated 文件夹 [英] Eclipse doesn't generate the .apt_generated folder for Butter Knife

问题描述

我已仔细按照

首先你需要确保你有一个 Android 项目和 不是 Android 库 项目，因为 Butterknife 使用 处理库项目一种不同的方法.

要执行此操作，请单击 Project Properties 并转到 Android 部分.有关更多详细信息，请参阅Android 文档:

然后在 project/.factorypath 中检查这些设置:

<factorypathentry kind="WKSPJAR" id="/PotlatchClient/libs/butterknife-5.1.2.jar" enabled="true" runInBatchMode="false"/></工厂路径>

project/.settings/org.eclipse.jdt.apt.core.prefs:

eclipse.preferences.version=1org.eclipse.jdt.apt.aptEnabled=trueorg.eclipse.jdt.apt.genSrcDir=.apt_generatedorg.eclipse.jdt.apt.reconcileEnabled=true

project/.settings/org.eclipse.jdt.core.prefs:

eclipse.preferences.version=1org.eclipse.jdt.core.compiler.processAnnotations=启用

最后在 Eclipse 中刷新并清理以进行完全重建.

另一个建议的问题是将 JDK 更改为 1.7，这意味着您只能针对 Kitkat (4.4) 或更高版本.

I have carefully followed the instructions in the official guide to enable annotations in my Eclipse ADT 3.8.

That is, Annotation Processing and Factory Path are properly configured:

My Android application compiles successfully. It runs too, of course, but I get obvious NPEs due to views that are expected to be initialized by Butter Knife stay null.

If I change the configuration to generate, say .apt_generated_foo_bar, Eclipse will create that folder. But empty.

Any ideas on how I can convince Eclipse to create the appropriate classes in .apt_generated?

解决方案

This question (and answer) duplicates this one: Butterknife does not create anything in .apt_generated directory

First you need to make sure you have an Android project and not an Android library project because Butterknife handles library projects using a different approach.

To do this click Project Properties and go to the Android section. For further details see the Android documentation:

Then check these settings in project/.factorypath:

<factorypath>
    <factorypathentry kind="WKSPJAR" id="/PotlatchClient/libs/butterknife-5.1.2.jar" enabled="true" runInBatchMode="false"/>
</factorypath>

project/.settings/org.eclipse.jdt.apt.core.prefs:

eclipse.preferences.version=1
org.eclipse.jdt.apt.aptEnabled=true
org.eclipse.jdt.apt.genSrcDir=.apt_generated
org.eclipse.jdt.apt.reconcileEnabled=true

project/.settings/org.eclipse.jdt.core.prefs:

eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.processAnnotations=enabled

Finally do a refresh in Eclipse and clean to do a full rebuild.

The problem with the other suggestion is changing the JDK to 1.7 means you can only target Kitkat (4.4) or higher.

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