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我是 android 编程的新手,对出现的意外错误有点恼火。

我正在尝试制作一个有两个按钮并从教程开始的小部件。我在路上遇到了一些颠簸,但它的表现相当不错。现在我正在尝试调整小部件的高度和宽度并尝试添加更多组件。但我不断收到此错误:

10-24 09:33:40.941: E/AndroidRuntime(280): FATAL EXCEPTION: main
10-24 09:33:40.941: E/AndroidRuntime(280): java.lang.RuntimeException: Unable to instantiate receiver com.example.world.knowledge.agenda.MainActivity: java.lang.ClassNotFoundException: com.example.world.knowledge.agenda.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.world.knowledge.agenda.widget-1.apk]
10-24 09:33:40.941: E/AndroidRuntime(280):  at android.app.ActivityThread.handleReceiver(ActivityThread.java:2789)
10-24 09:33:40.941: E/AndroidRuntime(280):  at android.app.ActivityThread.access$3200(ActivityThread.java:125)
10-24 09:33:40.941: E/AndroidRuntime(280):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2083)
10-24 09:33:40.941: E/AndroidRuntime(280):  at android.os.Handler.dispatchMessage(Handler.java:99)
10-24 09:33:40.941: E/AndroidRuntime(280):  at android.os.Looper.loop(Looper.java:123)
10-24 09:33:40.941: E/AndroidRuntime(280):  at android.app.ActivityThread.main(ActivityThread.java:4627)
10-24 09:33:40.941: E/AndroidRuntime(280):  at java.lang.reflect.Method.invokeNative(Native Method)
10-24 09:33:40.941: E/AndroidRuntime(280):  at java.lang.reflect.Method.invoke(Method.java:521)
10-24 09:33:40.941: E/AndroidRuntime(280):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-24 09:33:40.941: E/AndroidRuntime(280):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-24 09:33:40.941: E/AndroidRuntime(280):  at dalvik.system.NativeStart.main(Native Method)
10-24 09:33:40.941: E/AndroidRuntime(280): Caused by: java.lang.ClassNotFoundException: com.example.world.knowledge.agenda.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.world.knowledge.agenda.widget-1.apk]
10-24 09:33:40.941: E/AndroidRuntime(280):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
10-24 09:33:40.941: E/AndroidRuntime(280):  at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
10-24 09:33:40.941: E/AndroidRuntime(280):  at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
10-24 09:33:40.941: E/AndroidRuntime(280):  at android.app.ActivityThread.handleReceiver(ActivityThread.java:2780)
10-24 09:33:40.941: E/AndroidRuntime(280):  ... 10 more

看来我为解决这个问题所做的所有努力都是徒劳的。也许你们中的一个人知道我该如何解决这个问题。(请尝试写下“虚拟证明”,这对我来说都是全新的 :))

这是我的安卓清单:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.world.knowledge.agenda.widget"
      android:versionCode="1"
      android:versionName="1.0">
      <uses-sdk android:minSdkVersion="4"/>
    <application android:icon="@drawable/ic_launcher" 
        android:label="@string/app_name"
        android:debuggable="true">

                <!-- this activity will be called, when we fire our self created ACTION_WIDGET_CONFIGURE -->
        <activity android:name="com.example.world.knowledge.agenda.ClickOneActivity" android:label="@string/app_name">
            <intent-filter>
                <action android:name="com.example.world.knowledge.agenda.MainActivity.ACTION_WIDGET_CONFIGURE"/>
                <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <!-- Broadcast Receiver that will process AppWidget updates -->
        <receiver android:name=".MainActivity" 
            android:label="@string/app_name" 
            android:exported="false">
            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>
            <intent-filter>
                <!-- Broadcast Receiver that will also process our self created action -->
                <action android:name="com.example.world.knowledge.agenda.MainActivity.ACTION_WIDGET_RECEIVER"/>
            </intent-filter>
            <meta-data android:name="android.appwidget.provider" android:resource="@xml/button_widget_provider" />
        </receiver>
    </application>
</manifest> 

也许解决方案非常简单,但在此先感谢:)

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2 回答 2

0

不太确定,但您可以尝试将部分更改 package="com.example.world.knowledge.agenda.widget"package="com.example.world.knowledge.agenda" 清单文件声明中的部分。

于 2012-10-24T16:27:16.940 回答
0

显然我的模拟器本身已损坏,一直在寻找一个不存在的错误......无论如何,我重新安装了它,它现在工作正常。

于 2012-10-31T11:27:45.033 回答