使用AndroidAnnotations的ClassNotFoundException

Question

我试图使用AndroidAnnotaions,但ClassNotFoundException在我的项目中收到错误.

出于测试目的,我创建了一个新项目,Activity我仍然得到错误.我的文件:

AndroidManifest.xml中

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.rodrigora.testannotations"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.rodrigora.testannotations.MainActivity_"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

MainActivity.java

package com.rodrigora.testannotations;

import android.app.Activity;
import android.view.Menu;

import com.googlecode.androidannotations.annotations.EActivity;

@EActivity(R.layout.activity_main)
public class MainActivity extends Activity {

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

}

这些是我从Eclipse创建的示例项目中更改的两个文件,并按照以下步骤将AndroidAnnotations添加到项目中:

1. 添加androidannotations-api-2.7.jar到libs文件夹和build path
2. 添加androidannotations-2.7.jar到compiled-libs文件夹和Factory Path
3. androidannotations-2.7.jar在Order and Export标签中标记.

这里是我启动应用程序时的堆栈跟踪:

12-28 20:29:21.296: E/AndroidRuntime(30600): FATAL EXCEPTION: main
12-28 20:29:21.296: E/AndroidRuntime(30600): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.rodrigora.testannotations/com.rodrigora.testannotations.MainActivity_}: java.lang.ClassNotFoundException: com.rodrigora.testannotations.MainActivity_ in loader dalvik.system.PathClassLoader[/data/app/com.rodrigora.testannotations-2.apk]
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1573)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.os.Handler.dispatchMessage(Handler.java:99)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.os.Looper.loop(Looper.java:130)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.app.ActivityThread.main(ActivityThread.java:3687)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at java.lang.reflect.Method.invokeNative(Native Method)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at java.lang.reflect.Method.invoke(Method.java:507)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at dalvik.system.NativeStart.main(Native Method)
12-28 20:29:21.296: E/AndroidRuntime(30600): Caused by: java.lang.ClassNotFoundException: com.rodrigora.testannotations.MainActivity_ in loader dalvik.system.PathClassLoader[/data/app/com.rodrigora.testannotations-2.apk]
12-28 20:29:21.296: E/AndroidRuntime(30600):    at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
12-28 20:29:21.296: E/AndroidRuntime(30600):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1565)
12-28 20:29:21.296: E/AndroidRuntime(30600):    ... 11 more

谁知道我忘记了什么？Eclipse应该显示生成的类AndroidAnnotations？

谢谢!

编辑

完整代码 - bitbucket

Answer 1

看起来你的AndroindAnnotation生成的类没有包含在你的构建中.以下是您的.classpath似乎缺失的行 -

   <classpathentry kind="src" path=".apt_generated">
               <attributes>
                       <attribute name="optional" value="true"/>
               </attributes>
   </classpathentry>

这些应该是作为遵循AndroidAnnotations安装的一部分为您生成的.要检查的事项 -

• 您的ADT工具是最新的.

• 您Project->Clean在启用注释后运行

我能够克隆您的仓库,导入到eclipse,并获得一个干净的构建并使用以下步骤运行应用程序而不会崩溃 -

1. 将项目重构/重命名为TestAnnotations(eclipse导入为"MainActivity_")
2. 启用注释处理(需要打开Enable project specific settings并Enable annonation processing在`Java Compiler-> Annontation Processing中)
3. 项目 - >清除
4. 运行

注意:如果我进行了导入并且只是重构以获得干净的构建,但是没有启用注释处理,那么我得到了您描述的完全相同的行为.检查以确保您具有项目特定设置,注释,然后执行干净构建.