Android アプリのデータ アクセス コードで例外が発生します。
例外を引き起こすコードは次のとおりです。
String getPost = "SELECT * FROM " + TABLE_POST + ";";
Cursor result = getReadableDatabase().rawQuery(getPost, null);
List posts = new ArrayList();{
Log.d("count", result.getCount() + " post rows");
while (result != null && result.moveToNext());
Post post = new Post();
post.setPostId(result.getInt(0));
posts.add(post);
....
}
発生する例外は次のとおりです。
android.database.CursorIndexOutOfBoundsException: Index 2 requested, with a size of 2 exception
log メソッドは結果を生成します2 post rows。
ここで何が問題なのですか？
編集:完全なスタック トレースを追加したので、表示したい人はそうすることができます。
11-14 09:57:50.538: W/dalvikvm(4710): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
11-14 09:57:50.608: E/AndroidRuntime(4710): FATAL EXCEPTION: main
11-14 09:57:50.608: E/AndroidRuntime(4710): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.innolabmm.software.collaboration/com.innolabmm.software.collaboration.PostCommentActivity}: android.database.CursorIndexOutOfBoundsException: Index 2 requested, with a size of 2
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.os.Handler.dispatchMessage(Handler.java:99)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.os.Looper.loop(Looper.java:137)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.ActivityThread.main(ActivityThread.java:5041)
11-14 09:57:50.608: E/AndroidRuntime(4710): at java.lang.reflect.Method.invokeNative(Native Method)
11-14 09:57:50.608: E/AndroidRuntime(4710): at java.lang.reflect.Method.invoke(Method.java:511)
11-14 09:57:50.608: E/AndroidRuntime(4710): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
11-14 09:57:50.608: E/AndroidRuntime(4710): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
11-14 09:57:50.608: E/AndroidRuntime(4710): at dalvik.system.NativeStart.main(Native Method)
11-14 09:57:50.608: E/AndroidRuntime(4710): Caused by: android.database.CursorIndexOutOfBoundsException: Index 2 requested, with a size of 2
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.database.AbstractCursor.checkPosition(AbstractCursor.java:424)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:136)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.database.AbstractWindowedCursor.getInt(AbstractWindowedCursor.java:68)
11-14 09:57:50.608: E/AndroidRuntime(4710): at com.innolabmm.software.collaboration.data.CollaborationDbHandler.fetchAllPost(CollaborationDbHandler.java:362)
11-14 09:57:50.608: E/AndroidRuntime(4710): at com.innolabmm.software.collaboration.PostCommentActivity.onCreate(PostCommentActivity.java:48)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.Activity.performCreate(Activity.java:5104)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
11-14 09:57:50.608: E/AndroidRuntime(4710): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
11-14 09:57:50.608: E/AndroidRuntime(4710): ... 11 more