我正在用 Eclipse 构建一个 Android 应用程序，一切都很顺利，直到我添加了一个特定的 KeyEvent 代码。一旦我尝试模拟我的应用程序，它就会崩溃并死掉。我多次尝试清理它，但没有得到解决。此外，当我尝试编辑源路径时，源会显示片刻，但会消失。以下是未找到的来源：
ActivityThread.performLaunchActivity(ActivityThread$ActivityClientRecord, Intent) line: 2159
ActivityThread.handleLaunchActivity(ActivityThread$ActivityClientRecord, Intent) line: 2189
ActivityThread.access$600(ActivityThread, ActivityThread$ActivityClientRecord, Intent) line: 139
ActivityThread$H.handleMessage(Message) line: 1261
ActivityThread.main(String[]) line: 4894
ZygoteInit$MethodAndArgsCaller.run() line: 784
ZygoteInit.main(String[]) line: 551
NativeStart.main(String[]) line: not available [native method]
我怎样才能让它们变得可以使用？我非常接近我的应用程序准备就绪。这是我的应用程序中唯一的挫折。
编辑：这是 logcat 输出：
08-12 10:52:02.359: E/AndroidRuntime(23219): FATAL EXCEPTION: main
08-12 10:52:02.359: E/AndroidRuntime(23219): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mshaw.avanos/com.mshaw.avanos.AvanosActivity}: java.lang.NullPointerException
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2075)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2189)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.app.ActivityThread.access$600(ActivityThread.java:139)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1261)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.os.Handler.dispatchMessage(Handler.java:99)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.os.Looper.loop(Looper.java:154)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.app.ActivityThread.main(ActivityThread.java:4894)
08-12 10:52:02.359: E/AndroidRuntime(23219): at java.lang.reflect.Method.invokeNative(Native Method)
08-12 10:52:02.359: E/AndroidRuntime(23219): at java.lang.reflect.Method.invoke(Method.java:511)
08-12 10:52:02.359: E/AndroidRuntime(23219): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
08-12 10:52:02.359: E/AndroidRuntime(23219): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
08-12 10:52:02.359: E/AndroidRuntime(23219): at dalvik.system.NativeStart.main(Native Method)
08-12 10:52:02.359: E/AndroidRuntime(23219): Caused by: java.lang.NullPointerException
08-12 10:52:02.359: E/AndroidRuntime(23219): at com.mshaw.avanos.SimpleEula.getPackageInfo(SimpleEula.java:25)
08-12 10:52:02.359: E/AndroidRuntime(23219): at com.mshaw.avanos.SimpleEula.show(SimpleEula.java:33)
08-12 10:52:02.359: E/AndroidRuntime(23219): at com.mshaw.avanos.AvanosActivity.<init>(AvanosActivity.java:36)
08-12 10:52:02.359: E/AndroidRuntime(23219): at java.lang.Class.newInstanceImpl(Native Method)
08-12 10:52:02.359: E/AndroidRuntime(23219): at java.lang.Class.newInstance(Class.java:1319)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.app.Instrumentation.newActivity(Instrumentation.java:1039)
08-12 10:52:02.359: E/AndroidRuntime(23219): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2066)
08-12 10:52:02.359: E/AndroidRuntime(23219): ... 11 more