android - 线程以未捕获的异常退出 (group=0x4001b188)

Question

我收到一个我不明白的错误。我要做的就是从pdf中提取文本。我正在使用 droidText ( http://code.google.com/p/droidtext/ ) 这是代码：

public void parsePdf(URL pdf) throws IOException {

    PdfReader reader = new PdfReader(pdf.openStream());
    PdfTextExtractor pdfEx = new PdfTextExtractor(reader);

    
    for(i=1; i <= reader.getNumberOfPages(); i++){
        Scanner scanner = new Scanner(pdfEx.getTextFromPage(i));
        while(scanner.hasNextLine()){
        paragraphs.add(scanner.nextLine());
        }
    }

}

这是日志：

05-01 17:04:37.059: D/dalvikvm(295): GC freed 4534 objects / 194136 bytes in 47ms
05-01 17:04:38.970: D/dalvikvm(295): GC freed 4416 objects / 411552 bytes in 62ms
05-01 17:04:38.980: I/dalvikvm-heap(295): Grow heap (frag case) to 5.906MB for 523658-byte allocation
05-01 17:04:39.049: D/dalvikvm(295): GC freed 334 objects / 15008 bytes in 64ms
05-01 17:04:39.371: D/dalvikvm(295): GC freed 504 objects / 284696 bytes in 50ms
05-01 17:04:39.380: I/dalvikvm-heap(295): Grow heap (frag case) to 6.625MB for 1054154-byte allocation
05-01 17:04:39.450: D/dalvikvm(295): GC freed 0 objects / 0 bytes in 74ms
05-01 17:04:39.520: D/dalvikvm(295): GC freed 1904 objects / 595384 bytes in 64ms
05-01 17:04:39.780: D/dalvikvm(295): GC freed 10610 objects / 1483240 bytes in 57ms
05-01 17:04:40.160: D/dalvikvm(295): GC freed 17834 objects / 808256 bytes in 62ms
05-01 17:04:40.610: D/dalvikvm(295): GC freed 20850 objects / 963048 bytes in 64ms 
05-01 17:04:41.090: D/dalvikvm(295): GC freed 30108 objects / 1060848 bytes in 67ms
05-01 17:04:41.210: D/AndroidRuntime(295): Shutting down VM
05-01 17:04:41.210: W/dalvikvm(295): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
05-01 17:04:41.220: E/AndroidRuntime(295): Uncaught handler: thread main exiting due to uncaught exception
05-01 17:04:41.334: I/DEBUG(27): *** *** *** *** *** *** *** *** *** *** *** *** ***  *** *** ***
05-01 17:04:41.334: I/DEBUG(27): Build fingerprint: 'generic/sdk/generic/:2.1-update1/ECLAIR/35983:eng/test-keys'
05-01 17:04:41.342: I/DEBUG(27): pid: 295, tid: 295  >>> com.android.horse <<<
05-01 17:04:41.342: I/DEBUG(27): signal 11 (SIGSEGV), fault addr 00000008
05-01 17:04:41.342: I/DEBUG(27):  r0 00000000  r1 beac7ae8  r2 4187033c  r3 00000000
05-01 17:04:41.342: I/DEBUG(27):  r4 beac7ae8  r5 4186be84  r6 beac7ae0  r7 40009ae8
05-01 17:04:41.342: I/DEBUG(27):  r8 ad00f380  r9 0000bd00  10 4186be58  fp 00000000
05-01 17:04:41.342: I/DEBUG(27):  ip 00000000  sp beac7a90  lr ad0544d3  pc ad034474  cpsr 40000030
05-01 17:04:41.400: I/DEBUG(27):          #00  pc 00034474  /system/lib/libdvm.so
05-01 17:04:41.400: I/DEBUG(27):          #01  pc 000544ce  /system/lib/libdvm.so
05-01 17:04:41.400: I/DEBUG(27):          #02  pc 00013f58  /system/lib/libdvm.so
05-01 17:04:41.411: I/DEBUG(27):          #03  pc 00019888  /system/lib/libdvm.so
05-01 17:04:41.411: I/DEBUG(27):          #04  pc 00018d5c  /system/lib/libdvm.so
05-01 17:04:41.411: I/DEBUG(27):          #05  pc 0004d6d0  /system/lib/libdvm.so
05-01 17:04:41.411: I/DEBUG(27):          #06  pc 0004d702  /system/lib/libdvm.so
05-01 17:04:41.411: I/DEBUG(27):          #07  pc 000404b8  /system/lib/libdvm.so
05-01 17:04:41.411: I/DEBUG(27):          #08  pc 00041334  /system/lib/libdvm.so
05-01 17:04:41.420: I/DEBUG(27):          #09  pc 00037e3a  /system/lib/libdvm.so
05-01 17:04:41.420: I/DEBUG(27):          #10  pc 00027a12  /system/lib/libdvm.so
05-01 17:04:41.420: I/DEBUG(27):          #11  pc 00027c7e  /system/lib/libandroid_runtime.so
05-01 17:04:41.420: I/DEBUG(27):          #12  pc 00008cae  /system/bin/app_process
05-01 17:04:41.420: I/DEBUG(27):          #13  pc 0000c2c6  /system/lib/libc.so
05-01 17:04:41.420: I/DEBUG(27):          #14  pc b00018aa  /system/bin/linker
05-01 17:04:41.430: I/DEBUG(27): code around pc:
05-01 17:04:41.430: I/DEBUG(27): ad034464 bdf0b011 0004bbfc 00000354 1c03b510 
05-01 17:04:41.430: I/DEBUG(27): ad034474 30106899 f7ff0849 bd10ff65 4d37b5f0 
05-01 17:04:41.430: I/DEBUG(27): ad034484 9100b083 1c16447d d0012a00 60132300 
05-01 17:04:41.430: I/DEBUG(27): code around lr:
05-01 17:04:41.430: I/DEBUG(27): ad0544c0 f86ef7ea 46c0bd10 6800b510 f7df1c0c 
05-01 17:04:41.430: I/DEBUG(27): ad0544d0 6020ffcf 46c0bd10 1c0cb510 fa8cf7ec 
05-01 17:04:41.430: I/DEBUG(27): ad0544e0 22002101 ffccf7df bd106020 1c03b510 
05-01 17:04:41.430: I/DEBUG(27): stack:
05-01 17:04:41.430: I/DEBUG(27):     beac7a50  0000bd00  [heap]
05-01 17:04:41.430: I/DEBUG(27):     beac7a54  00000012  
05-01 17:04:41.430: I/DEBUG(27):     beac7a58  00000000  
05-01 17:04:41.430: I/DEBUG(27):     beac7a5c  4506848e  /dev/ashmem/mspace/dalvik-heap/2 (deleted)
05-01 17:04:41.430: I/DEBUG(27):     beac7a60  00000001  
05-01 17:04:41.430: I/DEBUG(27):     beac7a64  ad054403  /system/lib/libdvm.so
05-01 17:04:41.430: I/DEBUG(27):     beac7a68  00000001  
05-01 17:04:41.430: I/DEBUG(27):     beac7a6c  0005c368  [heap]
05-01 17:04:41.430: I/DEBUG(27):     beac7a70  00000000  
05-01 17:04:41.430: I/DEBUG(27):     beac7a74  00000001  
05-01 17:04:41.430: I/DEBUG(27):     beac7a78  000007ab  
05-01 17:04:41.430: I/DEBUG(27):     beac7a7c  00000001  
05-01 17:04:41.440: I/DEBUG(27):     beac7a80  afe0df40  /system/lib/libc.so
05-01 17:04:41.440: I/DEBUG(27):     beac7a84  00000001  
05-01 17:04:41.440: I/DEBUG(27):     beac7a88  df002777  
05-01 17:04:41.440: I/DEBUG(27):     beac7a8c  e3a070ad  
05-01 17:04:41.440: I/DEBUG(27): #00 beac7a90  beac7ae8  [stack]
05-01 17:04:41.440: I/DEBUG(27):     beac7a94  ad0544d3  /system/lib/libdvm.so
05-01 17:04:41.440: I/DEBUG(27): #01 beac7a98  41f7c228  /data/dalvik-cache/system@framework@core.jar@classes.dex
05-01 17:04:41.440: I/DEBUG(27):     beac7a9c  ad013f5c  /system/lib/libdvm.so
05-01 17:04:41.790: D/Zygote(29): Process 295 terminated by signal (11)
05-01 17:04:41.790: I/WindowManager(51): WIN DEATH: Window{44df4c38 com.android.horse/com.android.horse.HorseEdgeActivity paused=false}
05-01 17:04:41.790: I/ActivityManager(51): Process com.android.horse (pid 295) has died.

有谁知道我的代码有什么问题？

score 2 · Accepted Answer

我的代码也有同样的问题，然后我打开我的清单，发现有多个不需要的标签，它们要么是双重声明的，要么是非关闭的，在更正它们之后，我的应用程序现在可以正常工作了。

这就是我之前的 minifest 的样子

    <application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
        android:label="@string/title_activity_main" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
     <intent-filter >
            <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
        </intent-filter>

            </intent-filter>
    </activity>

    <activity android:name=".SecondActivity"/>
    <activity android:name=".ThirdActivity"/>
    <activity android:name=".FourthActivity"/>
    <activity android:name=".FifthActivity"/>
    <activity android:name=".SixthActivity"/>
    <activity android:name=".SeventhActivity"/>

    </application>

在做了一些更正之后，它现在看起来像这样，

    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="my.project.mil"
           android:versionCode="1"
           android:versionName="1.0" >

    <uses-sdk
           android:minSdkVersion="5"
           android:targetSdkVersion="15" />

    <application
           android:icon="@drawable/ic_launcher"
           android:label="@string/app_name"
           android:theme="@style/AppTheme" >
    <activity
           android:name=".MainActivity"
           android:label="@string/title_activity_main" >
    <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />

            <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
    </intent-filter>
    </activity>   


    <activity android:name=".SecondActivity"/>
    <activity android:name=".ThirdActivity"/>
    <activity android:name=".FourthActivity"/>
    <activity android:name=".FifthActivity"/>
    <activity android:name=".SixthActivity"/>
    <activity android:name=".SeventhActivity"/>


   </application>

  </manifest>

每当有未捕获的线程异常时，就意味着存在运行时错误，或者更准确地说是程序流程中的错误。

如果这不起作用，请参阅 Uncaught handler: thread main exiting due to uncaught exception 也讨论了线程。

android - 线程以未捕获的异常退出 (group=0x4001b188)

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