我正在开发Froyo作为最低版本和姜饼作为目标版本的应用程序。因此,清单显示:无法实例化活动ComponentInfo
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="10"/>
我有一个模拟器和Nexus One的姜饼,和应用程序部署和正确安装。 但是,当它启动时,它崩溃,并在日志中抛出的错误是:
09-18 06:35:11.240: ERROR/AndroidRuntime(382): FATAL EXCEPTION: main
09-18 06:35:11.240: ERROR/AndroidRuntime(382): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.my.package/com.my.package.Dashboard}: java.lang.ClassNotFoundException: com.my.package.Dashboard in loader dalvik.system.PathClassLoader[/data/app/com.my.package-2.apk]
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.os.Handler.dispatchMessage(Handler.java:99)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.os.Looper.loop(Looper.java:130)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.app.ActivityThread.main(ActivityThread.java:3683)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at java.lang.reflect.Method.invokeNative(Native Method)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at java.lang.reflect.Method.invoke(Method.java:507)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at dalvik.system.NativeStart.main(Native Method)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): Caused by: java.lang.ClassNotFoundException: com.my.package.Dashboard in loader dalvik.system.PathClassLoader[/data/app/com.my.package-2.apk]
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
09-18 06:35:11.240: ERROR/AndroidRuntime(382): ... 11 more
是的,活动“仪表板”,在清单中声明:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.my.package"
android:versionCode="1"
android:versionName="1.0"
android:installLocation="auto">
<activity android:name=".Dashboard"
android:label="@string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
...
所以,可这有什么问题有关?这让我疯狂。
这两行有意义com.my.package和/data/app/com.my.package-2.apk? – user370305
我不知道你的意思。 – frapontillo
只需检查您的ddms文件资源管理器在data/app/<包名称>中与您在类构建中使用的相同。 – user370305