【发布时间】：2012-01-16 12:19:24
【问题描述】：
这是我的 logcat，问题是应用程序正在强制关闭，我想知道导致这种情况的行或方法。我是 android 新手，所以无法理解 logcat 的一个词。提前致谢
01-16 17:32:56.584: D/dalvikvm(276): GC freed 596 objects / 49984 bytes in 101ms
01-16 17:33:09.233: D/AndroidRuntime(276): Shutting down VM
01-16 17:33:09.233: W/dalvikvm(276): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
01-16 17:33:09.233: E/AndroidRuntime(276): Uncaught handler: thread main exiting due to uncaught exception
01-16 17:33:09.273: E/AndroidRuntime(276): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ymappuser/com.ymappuser.Manualloc}: java.lang.RuntimeException: java.lang.NullPointerException
01-16 17:33:09.273: E/AndroidRuntime(276): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.app.ActivityThread.access$2200(ActivityThread.java:119)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.os.Handler.dispatchMessage(Handler.java:99)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.os.Looper.loop(Looper.java:123)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.app.ActivityThread.main(ActivityThread.java:4363)
01-16 17:33:09.273: E/AndroidRuntime(276): at java.lang.reflect.Method.invokeNative(Native Method)
01-16 17:33:09.273: E/AndroidRuntime(276): at java.lang.reflect.Method.invoke(Method.java:521)
01-16 17:33:09.273: E/AndroidRuntime(276): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
01-16 17:33:09.273: E/AndroidRuntime(276): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
01-16 17:33:09.273: E/AndroidRuntime(276): at dalvik.system.NativeStart.main(Native Method)
01-16 17:33:09.273: E/AndroidRuntime(276): Caused by: java.lang.RuntimeException: java.lang.NullPointerException
01-16 17:33:09.273: E/AndroidRuntime(276): at com.ymappuser.Manualloc.getCountries(Manualloc.java:270)
01-16 17:33:09.273: E/AndroidRuntime(276): at com.ymappuser.Manualloc.fillcountry(Manualloc.java:83)
01-16 17:33:09.273: E/AndroidRuntime(276): at com.ymappuser.Manualloc.onCreate(Manualloc.java:75)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
01-16 17:33:09.273: E/AndroidRuntime(276): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
01-16 17:33:09.273: E/AndroidRuntime(276): ... 11 more
01-16 17:33:09.273: E/AndroidRuntime(276): Caused by: java.lang.NullPointerException
01-16 17:33:09.273: E/AndroidRuntime(276): at com.ymappuser.Manualloc.getCountries(Manualloc.java:243)
01-16 17:33:09.273: E/AndroidRuntime(276): ... 15 more
01-16 17:33:09.384: I/dalvikvm(276): threadid=7: reacting to signal 3
01-16 17:33:09.404: I/dalvikvm(276): Wrote stack trace to '/data/anr/traces.txt'
01-16 17:33:11.353: I/Process(276): Sending signal. PID: 276 SIG: 9
01-16 17:33:13.004: D/dalvikvm(284): GC freed 623 objects / 51024 bytes in 125ms
01-16 17:34:21.646: D/dalvikvm(284): GC freed 288 objects / 14672 bytes in 987ms
【问题讨论】：
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一点解释也不会受到伤害（您的应用程序是什么，何时发生等）执行 Manualloc.getCountries（第 243 行）时会抛出 NullPointerException，可能在您的 onCreate 中.请贴出getCountries方法的代码
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查看 Manualloc 类中的第 243 行。在任何人正确回答此问题之前，您需要使用相关代码等附加信息清楚地说明您的问题。
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谢谢哥们，真的很着急，所以无法发布完整的问题。但我整理出来了。该方法是从 web 服务获取数据，而我正在读取的 xml 带有一个其值为 null 的元素。整理好了但是如果我给你添麻烦了真的很抱歉。再也不会......
标签： android forceclose