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我构建了一个应用程序，其功能是接收设备的 RSS 更新并显示为输出。问题是应用程序每次开始读取文件时都会崩溃..

顺便说一句，该文件来自一个网站。

if (eventType == XmlPullParser.START_TAG)

当涉及到这一行时，它崩溃了……有人知道吗？

这是 LogCat 输出：

04-05 16:47:47.320: D/dalvikvm(352): GC_EXTERNAL_ALLOC freed 47K, 53% free 2547K/5379K, external 1957K/2137K, paused 144ms
04-05 16:47:47.917: D/dalvikvm(352): GC_EXTERNAL_ALLOC freed 1K, 53% free 2547K/5379K, external 2160K/2512K, paused 299ms
04-05 16:47:54.328: E/global(352): Deprecated Thread methods are not supported.
04-05 16:47:54.328: E/global(352): java.lang.UnsupportedOperationException
04-05 16:47:54.328: E/global(352):  at java.lang.VMThread.stop(VMThread.java:85)
04-05 16:47:54.328: E/global(352):  at java.lang.Thread.stop(Thread.java:1280)
04-05 16:47:54.328: E/global(352):  at java.lang.Thread.stop(Thread.java:1247)
04-05 16:47:54.328: E/global(352):  at dc.myappdsdasdadasda.app.___Startupseeds___$1.run(___Startupseeds___.java:54)
04-05 16:47:54.718: I/myappdsdasdadasda ListView loading..(352): ========================= [STARTER] ==========================
04-05 16:47:55.067: D/dalvikvm(352): GC_EXTERNAL_ALLOC freed 15K, 53% free 2567K/5379K, external 2736K/2946K, paused 207ms
04-05 16:47:55.479: I/myappdsdasdadasda ListView loading(352): URL ... {patch/xml}
04-05 16:47:55.497: I/myappdsdasdadasda ListView loading(352): Setting namespace.
04-05 16:47:55.497: I/myappdsdasdadasda ListView loading(352): xpp factory loaded
04-05 16:47:55.508: I/myappdsdasdadasda ListView loading(352): settingup utf-8 enccoding
04-05 16:47:57.389: I/myappdsdasdadasda ListView loading(352): AB AC AS HS[10] 001101 QTcheck #1
04-05 16:47:57.389: I/myappdsdasdadasda ListView loading(352): AB AC AS HS[10] 001101 QTcheck #2
04-05 16:47:57.389: I/myappdsdasdadasda ListView loading(352): AB AC AS HS[10] 001101 QTcheck #3
04-05 16:47:57.469: E/myappdsdasdadasda ListView loading..(352): Can't load screen layout, ERROR: java.lang.NullPointerException
04-05 16:47:57.469: I/myappdsdasdadasda ListView loaded(352): ========================= [FAILED!] ==========================
04-05 16:47:58.147: D/dalvikvm(352): GC_EXTERNAL_ALLOC freed 65K, 52% free 2599K/5379K, external 3221K/3471K, paused 68ms
04-05 16:47:58.329: D/dalvikvm(352): GC_EXTERNAL_ALLOC freed <1K, 52% free 2598K/5379K, external 4627K/5778K, paused 79ms

空指针异常：

04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351): Can't load screen layout, ERROR: 
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351): java.lang.NullPointerException
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at dc.suUSDAKDAL.app._0xSession.onCreate(_0xSession.java:130)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.app.ActivityThread.access$1500(ActivityThread.java:117)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.os.Handler.dispatchMessage(Handler.java:99)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.os.Looper.loop(Looper.java:123)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at android.app.ActivityThread.main(ActivityThread.java:3683)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at java.lang.reflect.Method.invokeNative(Native Method)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at java.lang.reflect.Method.invoke(Method.java:507)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-07 13:05:44.373: E/suUSDAKDAL ListView loading..(351):   at dalvik.system.NativeStart.main(Native Method)

创建时：

while (eventType != XmlPullParser.END_DOCUMENT)
{
    if (eventType == XmlPullParser.START_TAG)
    {
        if (xpp.getName().equalsIgnoreCase("item")) 
        {
            insideItem = true;
        } 
        else if (xpp.getName().equalsIgnoreCase("title")) 
        {
            if (insideItem)
                _viTitle[_0xFa] = xpp.nextText();
        }
        else if (xpp.getName().equalsIgnoreCase("description"))
        {
            if (insideItem)
                vi_subTitle[_0xFa] = xpp.nextText();
        }
        else if (xpp.getName().equalsIgnoreCase("link"))
        {
            if (insideItem)
                __Links[_0xFa] = xpp.nextText();
        }
    }
    else if(eventType==XmlPullParser.END_TAG && xpp.getName().equalsIgnoreCase("item"))
    {
        insideItem=false;
    }
    mStrings [_0xFa] = "http://images3.wikia.nocookie.net/__cb20111202150846/theamazingworldofgumball/images/c/c1/Banana_joe_on_the_floor,lol!.png";
    _0xFa ++;
}

新错误：

04-13 09:48:53.999: E/AndroidRuntime(336): FATAL EXCEPTION: main
04-13 09:48:53.999: E/AndroidRuntime(336): java.lang.RuntimeException: Unable to start activity ComponentInfo{dc.sus.app/dc.sus.app._0xSession}: java.lang.ArrayIndexOutOfBoundsException
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.os.Looper.loop(Looper.java:123)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.app.ActivityThread.main(ActivityThread.java:3683)
04-13 09:48:53.999: E/AndroidRuntime(336):  at java.lang.reflect.Method.invokeNative(Native Method)
04-13 09:48:53.999: E/AndroidRuntime(336):  at java.lang.reflect.Method.invoke(Method.java:507)
04-13 09:48:53.999: E/AndroidRuntime(336):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-13 09:48:53.999: E/AndroidRuntime(336):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-13 09:48:53.999: E/AndroidRuntime(336):  at dalvik.system.NativeStart.main(Native Method)
04-13 09:48:53.999: E/AndroidRuntime(336): Caused by: java.lang.ArrayIndexOutOfBoundsException
04-13 09:48:53.999: E/AndroidRuntime(336):  at dc.sus.app._0xSession.onCreate(_0xSession.java:128)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-13 09:48:53.999: E/AndroidRuntime(336):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
04-13 09:48:53.999: E/AndroidRuntime(336):  ... 11 more

新的堆栈跟踪：

04-13 20:22:17.634: E/AndroidRuntime(527): FATAL EXCEPTION: main
04-13 20:22:17.634: E/AndroidRuntime(527): java.lang.OutOfMemoryError
04-13 20:22:17.634: E/AndroidRuntime(527):  at java.util.ArrayList.add(ArrayList.java:123)
04-13 20:22:17.634: E/AndroidRuntime(527):  at dc.sus.app._0xSession.onCreate(_0xSession.java:127)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.os.Looper.loop(Looper.java:123)
04-13 20:22:17.634: E/AndroidRuntime(527):  at android.app.ActivityThread.main(ActivityThread.java:3683)
04-13 20:22:17.634: E/AndroidRuntime(527):  at java.lang.reflect.Method.invokeNative(Native Method)
04-13 20:22:17.634: E/AndroidRuntime(527):  at java.lang.reflect.Method.invoke(Method.java:507)
04-13 20:22:17.634: E/AndroidRuntime(527):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-13 20:22:17.634: E/AndroidRuntime(527):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-13 20:22:17.634: E/AndroidRuntime(527):  at dalvik.system.NativeStart.main(Native Method)
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1 回答 1

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从评论线程转移到答案......当代码尝试取消引用时，您会收到一个空指针异常mStrings[_0xFa]。我想mStrings是一个Strings数组。在哪里mStrings初始化？

于 2012-04-10T13:44:16.840 回答