在Eclipse中/ ADT与项目相关性（无法分辨XY）的Andr​​oid活动 [英] Android Activity under Eclipse/ADT with Project Dependencies (Failed resolving XY)

问题描述

我试图保持一个游戏项目相当平台无关的，所以我从低层次分割成三个项目顶部的Andr​​oid特定级别这样的：发动机，游戏，安卓游戏

I tried to keep a game project quite platform independent so I split it up into three projects from low-level to top android specific level like that: engine, game, android game.

所涉及的类/错误的接口可：

The involved classes/interfaces in the error are those:

1. （低电平）发动机项目定义了这个接口：

1. (low level) engine project defines this interface:

com.myteam.engine.IGame

（中等水平）平台的独立游戏项目定义这些类：

(mid level) platform independent game project defines those classes:

com.myteam.myproject.Game
com.myteam.myproject.MyProject (derived from com.myteam.myproject.Game)

（顶层）的Andr​​oid项目实施活动等。

(top level) android project implements activity, etc.:

com.myteam.myproject.android.MyAndroidActivity (using com.myteam.myproject.MyProject)

所有编译以及和Windows下运行完美（与3级另一个Windows项目采用前两种）。

All compiles well and runs perfectly under Windows (with another Windows project on level 3 using the first two).

但随着ADT运行时，它无法在运行时的活动开始时。 Android应用程序基本上只是显示一个调用堆栈与NoClassDefFoundError的com.myteam.myproject.MyProject异常。

But when running with ADT it fails at run-time when the Activity starts. The Android app basically just displays a call stack with a "NoClassDefFoundError com.myteam.myproject.MyProject" exception.

的例外似乎是由它的父类（或超类的接口）所引起，而加载/解析为LogCat中输出显示：

The exception seems to be caused by its super class (or the super class' interface) while loading/resolving as the LogCat output reveals:

12-20 19:51:51.897: D/ddm-heap(218): Got feature list request
12-20 19:51:52.207: I/dalvikvm(218): Failed resolving Lcom/myteam/myproject/Game; interface 18 'Lcom/myteam/engine/IGame;'
12-20 19:51:52.217: W/dalvikvm(218): Link of class 'Lcom/myteam/myproject/Game;' failed
12-20 19:51:52.227: W/dalvikvm(218): Unable to resolve superclass of Lcom/myteam/myproject/MyProject; (52)
12-20 19:51:52.227: W/dalvikvm(218): Link of class 'Lcom/myteam/myproject/MyProject;' failed
12-20 19:51:52.227: E/dalvikvm(218): Could not find class 'com.myteam.myproject.MyProject', referenced from method com.myteam.myproject.android.MyAndroidActivity.onCreate
12-20 19:51:52.227: W/dalvikvm(218): VFY: unable to resolve new-instance 54 (Lcom/myteam/myproject/MyProject;) in Lcom/myteam/myproject/android/Youcode_AndroidActivity;
12-20 19:51:52.227: D/dalvikvm(218): VFY: replacing opcode 0x22 at 0x0008
12-20 19:51:52.227: D/dalvikvm(218): Making a copy of Lcom/myteam/myproject/android/Youcode_AndroidActivity;.onCreate code (88 bytes)

我想下添加两个首批项目的构建路径/排序和导出Android的游戏项目的Eclipse项目设置的其他职位和论坛进行确认，但不会改变任何事情。

I tried adding the two first projects under the "Build Path / Order and Export" Eclipse project settings of the android game project as described in other posts and forums but it doesn't change a thing.

我的直觉是，清单或项目设置需要的包/类依存关系的另一个提的APK包装或运行时间。任何想法？

My hunch is that the Manifest or Project settings need another mentioning of the package/class dependencies for apk packaging or run-time. Any ideas?

推荐答案

我有一个三层的Andr​​oid / Java的应用程序，几乎就像你：

I have a three-tiered Android/Java app, almost just like you:

1. 低级别的网络通信Java的唯一项目
2. Java的唯一项目，以抽象的低层次项目的功能
3. Android应用

以上每一点是包含在一个单一的工作区一个单独的Eclipse项目。

Each thing above is a separate Eclipse project contained in a single workspace.

下面是你需要做的：

1. 在该应用程序的项目属性 - > Java构建Path->项目，添加纯Java的项目
2. 在该应用程序的项目属性 - > Java构建Path->订单和出口，检查Java-唯一项目（这标志着他们为出口）

现在您的应用程序应该建立和运行，而不的NoClassDefFoundError 例外或 VFY 错误如下所示：

Now your app should build and run without NoClassDefFoundError exceptions or VFY errors like the following:

03-27 21:10:17.120: W/dalvikvm(420): VFY: unable to find class referenced in signature (Labstractionlayer/BaseStationManager;)
03-27 21:10:17.120: W/dalvikvm(420): VFY: unable to find class referenced in signature (Labstractionlayer/BaseStationManager;)
03-27 21:10:17.160: I/dalvikvm(420): Failed resolving Lcom/demo/log/AndroidLogWrapper; interface 253 'Lcommon/Logger/LogWrapper;'
03-27 21:10:17.160: W/dalvikvm(420): Link of class 'Lcom/demo/log/AndroidLogWrapper;' failed
03-27 21:10:17.160: E/dalvikvm(420): Could not find class 'com.demo.log.AndroidLogWrapper', referenced from method com.demo.Application.onCreate
03-27 21:10:17.160: W/dalvikvm(420): VFY: unable to resolve new-instance 218 (Lcom/demo/log/AndroidLogWrapper;) in Lcom/demo/Application;
03-27 21:10:17.170: D/dalvikvm(420): VFY: replacing opcode 0x22 at 0x0003
03-27 21:10:17.170: D/dalvikvm(420): VFY: dead code 0x0005-003c in Lcom/demo/Application;.onCreate ()V
03-27 21:10:17.170: D/AndroidRuntime(420): Shutting down VM
03-27 21:10:17.170: W/dalvikvm(420): threadid=1: thread exiting with uncaught exception (group=0x40015560)
03-27 21:10:17.180: E/AndroidRuntime(420): FATAL EXCEPTION: main
03-27 21:10:17.180: E/AndroidRuntime(420): java.lang.NoClassDefFoundError: com.demo.log.AndroidLogWrapper

顺便说一句，之前ADT R17，你只需要做上述步骤1（添加Java-唯一项目）。但是，随着R17开始，你还需要执行步骤2（用于出口标记纯Java的项目）。

BTW, prior to ADT r17, you only needed to do step 1 above (add the Java-only projects). But beginning with r17, you need to also do step 2 (mark the Java-only projects for export).

这篇关于在Eclipse中/ ADT与项目相关性（无法分辨XY）的Andr​​oid活动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！