如何运行一个Android Activity类的主要方法是什么？ [英] How to run the main method of an Android Activity class?

问题描述

我想通过中执行它来检查一个 Android的活动的私有方法活动的的公共静态无效的主要（字串[] args）的这是我创建的方法。

I'd would like to examine a private method of an Android Activity by executing it within the Activity's public static void main(String[] args) method which I created.

我使用的Eclipse ADT 和我运行的活动的一个 Java应用程序的幼稚的做法导致：

I use Eclipse ADT and my naive approach of running the Activity as a Java application resulted in:

已经由Java运行时环境检测到一个致命错误：结果
  内部错误（classFileParser.cpp：3174），PID = 2936，TID = 2980结果
  错误：ShouldNotReachHere（）

A fatal error has been detected by the Java Runtime Environment:
Internal Error (classFileParser.cpp:3174), pid=2936, tid=2980
Error: ShouldNotReachHere()

所以，我看着在运行配置并发现了的Andr​​oid 3.1 是唯一的入口在引导条目部分的类路径。我设法配置的构建路径的项目，以便在 JRE 在引导条目过。然后，我删除了的Andr​​oid 3.1 项，并添加的android.jar 到用户条目

So I looked at the Run Configuration and found out that Android 3.1 is the sole entry in the Bootstrap Entries section of Classpath. I managed to configure the Build Path of the project so that the JRE is in the Bootstrap Entries too. Then I removed the Android 3.1 entry and added android.jar to User Entries.

执行的结果在运行配置是一个RuntimeException：

The result of executing the Run Configuration is a RuntimeException:

在异常线程主了java.lang.RuntimeException：存根结果！
    在android.content.Context（Context.java:4）

Exception in thread "main" java.lang.RuntimeException: Stub!
at android.content.Context.(Context.java:4)

另一种执行一些测试将启动一​​个的JUnit 的考验。但是，在一个私有方法的情况下这是麻烦的。

An alternative of executing some tests would be to fire up a JUnit test. But in the case of a private method this is cumbersome.

有没有办法成功运行一个Android Activity类的主要方法是什么？

Is there a way to successfully run the main method of an Android Activity class?

推荐答案

目前手头的问题的另一种选择，如果私人法 - 这应该通过审查主要方法的执行 - 可提取到另一个类。当然，这意味着，该方法突然变得至少保护。

There is another option for the problem at hand, if the private method - which should be examined through the execution of a main method - can be extracted to another class. This of course means that the method suddenly became at least protected.

但是，如果该方法是在不脱离机器人派生类内definded。 app.Activity 一个主要方法可以定义。你只需要调整的运行配置在Eclipse。

But if the method is definded within a class that does not derive from android.app.Activity a main method can be defined. You only have to adjust the Run Configuration in Eclipse.

1. 运行是运行的Java应用程序的类。这将生成一个名为像类的新运行配置


2. 编辑新creaded运行配置


3. 删除的Andr​​oid 从库中的引导条目在类路径标签


4. 添加JRE 6左右到项目的构建路径


5. 此JRE添加到引导条目在类路径标签


6. 添加的android.jar ，它驻留在平台的目录中的 Android SDK中在用户条目 在类路径标签

1. Run the class with Run as Java Application. This generates a new Run Configuration named like the class
2. Edit the newly creaded Run Configuration
3. Delete the Android library from Bootstrap Entries in the Classpath tab
4. Add JRE 6 or so to the build path of the project
5. Add this JRE to the Bootstrap Entries in the Classpath tab
6. Add android.jar, which resides in the platforms directory of the Android SDK in User Entries in the Classpath tab

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