某些设备上的 Android ComponentInfo ClassNotFoundException

Question

请帮助了解奇怪的应用程序行为。 在生产中的几乎所有设备中一切正常，我正在使用 ACRA 收集崩溃报告。但这是我从 Alpha GTR 设备中得到的：

ComponentInfo{com.xxxxxxxxxxx /com.xxxxxxxxxxx.xxxxActivity}: java.lang.ClassNotFoundException: com.xxxxxxxxxxx.xxxxActivity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2108)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2211)
at android.app.ActivityThread.access$600(ActivityThread.java:149)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:153)
at android.app.ActivityThread.main(ActivityThread.java:4987)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.ClassNotFoundException: com.xxxxxxxxxxx.xxxxActivity
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2099)
... 11 more   
java.lang.ClassNotFoundException: com.xxxxxxxxxxx.xxxxActivity
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2099)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2211)
at android.app.ActivityThread.access$600(ActivityThread.java:149)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:153)
at android.app.ActivityThread.main(ActivityThread.java:4987)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
at dalvik.system.NativeStart.main(Native Method)

所以应用程序无法以奇怪的异常启动。我已经检查了关于它的 SO 问题，只是将库添加为 Unable to instantiate activity... Caused by ClassNotFoundException 在这里没有帮助。 可能是某些特定于设备的异常吗？我的应用使用相机、谷歌地图和 GPS。

Answer 1

也许您必须先检查设备是否支持 GPS 或相机？

LocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);