Android的工作室：添加的水瓶中库？ [英] Android Studio: Add jar as library?

问题描述

我试图用全新的Andr​​oid Studio，但我似乎无法得到它的正常工作。

I'm trying to use the new Android Studio but i can't seem to get it working correctly.

我使用的GSON库序列化/反序列化JSON对象。但库不知何故不包含在构建

I'm using the Gson-library to serialize/deserialize JSON-objects. But the library somehow isn't included in the build.

我创建了一个新的项目，只需MainActivity。复制GSON-2.2.3.jar在/ libs文件夹中，并将其添加为一个库（右点击 - >添加为库）。这包括在机器人工作室罐子，因此它可以从源文件中被引用。

I created a new project with just a MainActivity. Copied gson-2.2.3.jar in the /libs folder and added it as a library (right click->Add as library). This includes the jar in android studio so it can be referenced from the source files.

当我尝试运行该项目无法编译，所以我加入

When I try to run the project it cannot compile so i added

compile files('libs/gson-2.2.3.jar')

在日.gradle文件的依赖关系。之后，它编译正常，但在运行应用程序时，我收到了ClassDefNotFoundException。 有谁知道我在做什么错了？

to the dependencies in de .gradle file. After that it compiles correctly but when running the application i get a ClassDefNotFoundException. Does anyone know what i'm doing wrong?

推荐答案

我一直挣扎着同样的事情，好几个小时，试图让GSON罐子工作不会少。我终于解决了 - 这里是我采取的步骤：

I've been struggling with the same thing for many hours, trying to get the Gson jar to work no less. I finally cracked it – here are the steps I took:

1. 把GSON罐（对我来说， GSON-2.2.4.jar ）进入库文件夹
2. 右键单击它并点击添加为库
3. 确保编译文件（库/ GSON-2.2.4.jar'）是在 build.gradle 文件
4. 请一个干净的构建（你也许可以做到这一点罚款Android的工作室，但为了确保我导航的终端我的应用程序的根文件夹，并键入 gradlew干净我在Mac OS X上，该命令可能是您的系统上的不同

1. Put the Gson jar (in my case, gson-2.2.4.jar) into the libs folder
2. Right click it and hit 'Add as library'
3. Ensure that compile files('libs/gson-2.2.4.jar') is in your build.gradle file
4. Do a clean build (you can probably do this fine in Android Studio, but to make sure I navigated in a terminal to the root folder of my app and typed gradlew clean. I'm on Mac OS X, the command might be different on your system

在我做了以上四种，它开始工作的罚款。我认为，加为图书馆的步骤是一个我倒是previously错过了，没有工作，直到我打扫它的。

After I did the above four, it started working fine. I think the 'Add as library' step was the one I'd previously missed, and it didn't work until I cleaned it either.

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