ADT20和外部JAR [英] ADT20 and External JAR

问题描述

我已经试过绝对一切，以避免出现NoClassDefFoundError尝试使用一个外部的jar时。没有骰子。 WTF ADT？！

I have tried absolutely everything to avoid the NoClassDefFoundError when trying to use an external jar. No dice. WTF ADT?!

这是一个干净的，全新的项目，增加外部罐子构建路径，放在库文件夹，确保它的检查。 Android的 - >修复项目属性，添加和删除，冲洗和重复。我查了罐子的内容，以及我的文件在那里！我引用的这18种方法，去掉增加和重建，仍是邓恩的东西都找不到！

From a clean, brand new project, add external jar to build path, put in libs folder, make sure it's checked. Android -> Fix Project Properties, adding and removing, rinsing and repeating. I checked the contents of the jar, and my files are there! I referenced it 20 ways, removed added and rebuilt, still the dern thing can't be found!!

有没有办法有人，从第1步，使用Eclipse和ADT 20条作出的Andr​​oid里面的外部罐的工作？

Is there a way someone has, from step 1, made an external jar work inside Android using eclipse and ADT 20?

修改1

我尝试添加它变成只有库/ 文件夹，并试图阿里什么建议<一href=\"http://stackoverflow.com/questions/10059152/java-lang-noclassdeffounderror-adt-17-known-issue\">in这太问题。我想我将不得不只是尝试和源添加到我的直接项目，但似乎太傻了。

I tried adding it into only the libs/ folder, and tried what Ali suggested in this SO question. I think I'm going to have to just try and add the source to my project directly, but that seems plain silly.

推荐答案

哦。我的。善良。

原来，的Andr​​oid（仍然）不支持Java 7 ，当我建立了我的外部项目，它有1.7（Java 7中）作为默认的合规水平！切换下来，以配合我的Andr​​oid项目的合规性使得这一切的花花公子。

Turns out, Android (still) does NOT support Java 7 and when I created my external project, it had the 1.7 (Java 7) as the default compliance level! Switching that down to match my Android project's compliance makes it all dandy.

像

List<MyClass> mList = new ArrayList<>();

和各种 @覆盖显然做Android的坚持它在空气中的鼻子。

And various @Override apparently made Android stick it's nose in the air.

希望这有助于别人出谁一直在这个问题上秃顶！

Hopefully this helps someone else out who's been going bald over this issue!

这篇关于ADT20和外部JAR的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！