我正在尝试用我的 HighscoreDB 中的数据填充 10 个文本视图。每次我的应用程序游戏结束时,都会要求用户在数据库中存储他们的分数以及名称。然后,我填充了 10 个文本视图(实际上是 20 个,但有 10 行带有名称和分数。)。这曾经有效(当 HighscoreDB 中有一些高分记录时),但是自从我创建了一个新的模拟器并因此删除了所有高分行后,我不断收到“android.database.CursorIndexOutOfBoundsException: Index x requested, with a size x”错误。x 代表我目前有多少行,例如,如果我在数据库中有 5 个高分行,错误将是“请求索引 5,大小为 5”(通过尝试解决我的问题的新方法发现但它仍然存在,我注意到指数也增加了)。
这是我的 HighscoreActivity 中的代码,其中高分放在 textviews 中:
db = (new HighscoreDB(this)).getWritableDatabase();
cursor = db.rawQuery("SELECT _id, name, score FROM highscore ORDER BY score DESC", null);
cursor.moveToFirst();
for (int i = 0; i < 10; i++) {
TableRow row = (TableRow)mHighscoreTable.getChildAt(i+1);
TextView tvName = (TextView)row.getChildAt(1);
tvName.setText(cursor.getString(1));
TextView tvScore = (TextView)row.getChildAt(2);
tvScore.setText(Integer.toString(cursor.getInt(2)));
cursor.moveToNext();
}
“for (int i = 0; i < 10; i++) {”这一行是因为我只想在 10 行 textviews 中一次显示 10 个高分。
桌子是这样制作的:
private static final String SCORE_TABLE_CREATE = "CREATE TABLE "
+ SCORE_TABLE_NAME
+ " (_id INTEGER PRIMARY KEY autoincrement, "
+ "name TEXT NOT NULL, score INTEGER NOT NULL)";
这是我最新的错误:
05-25 17:03:16.786: E/AndroidRuntime(780): FATAL EXCEPTION: main
05-25 17:03:16.786: E/AndroidRuntime(780): java.lang.RuntimeException: Unable to start activity ComponentInfo{be.michiel.test/be.michiel.test.HighscoreActivity}: android.database.CursorIndexOutOfBoundsException: Index 5 requested, with a size of 5
05-25 17:03:16.786: E/AndroidRuntime(780): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.os.Handler.dispatchMessage(Handler.java:99)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.os.Looper.loop(Looper.java:123)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.app.ActivityThread.main(ActivityThread.java:3683)
05-25 17:03:16.786: E/AndroidRuntime(780): at java.lang.reflect.Method.invokeNative(Native Method)
05-25 17:03:16.786: E/AndroidRuntime(780): at java.lang.reflect.Method.invoke(Method.java:507)
05-25 17:03:16.786: E/AndroidRuntime(780): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
05-25 17:03:16.786: E/AndroidRuntime(780): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
05-25 17:03:16.786: E/AndroidRuntime(780): at dalvik.system.NativeStart.main(Native Method)
05-25 17:03:16.786: E/AndroidRuntime(780): Caused by: android.database.CursorIndexOutOfBoundsException: Index 5 requested, with a size of 5
05-25 17:03:16.786: E/AndroidRuntime(780): at android.database.AbstractCursor.checkPosition(AbstractCursor.java:580)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:214)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:41)
05-25 17:03:16.786: E/AndroidRuntime(780): at be.michiel.test.HighscoreActivity.onCreate(HighscoreActivity.java:79)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-25 17:03:16.786: E/AndroidRuntime(780): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
05-25 17:03:16.786: E/AndroidRuntime(780): ... 11 more
请帮我找出我的错误。我一直在试图找出很长一段时间。提前致谢!