Question

我正在使用Parse为后端开发Android应用。事情一直很好，直到出现奇怪的崩溃。我已粘贴下面的堆栈跟踪。任何人都可以帮助找出实际原因是什么？我的研究表明，这是因为数据库列中存在大字符串。但是我从ParseObject开始就有大字符串没有任何问题。

代码：

private HashMap getFormResponsesMap() {
        HashMap<String, FormResponse> formResponsesMap = new HashMap<>();
        ParseQuery<FormResponse> query = FormResponse.getQuery();
        query.fromPin(Application.FORM_RESPONSE_GROUP_NAME);
        query.whereEqualTo("surveyor", ParseUser.getCurrentUser());
        query.fromLocalDatastore();
        try {
            List<FormResponse> objects = query.find(); //exception is thrown here.
            for (FormResponse response : objects) {
                formResponsesMap.put(response.getUuidString(), response);
            }
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return formResponsesMap;
}

堆栈追踪：

11-24 22:36:45.913 22779-23746/com.myapp.qa E/AndroidRuntime: FATAL EXCEPTION: Thread-26505
Process: com.myapp.qa, PID: 22779
java.lang.IllegalStateException: Couldn't read row 0, col 0 from CursorWindow.  Make sure the Cursor is initialized correctly before accessing data from it.
at android.database.CursorWindow.nativeGetString(Native Method)
at android.database.CursorWindow.getString(CursorWindow.java:434)
at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:51)
at com.parse.OfflineStore$9.then(OfflineStore.java:607)
at com.parse.OfflineStore$9.then(OfflineStore.java:590)
at bolts.Task$14.run(Task.java:872)
at bolts.BoltsExecutors$ImmediateExecutor.execute(BoltsExecutors.java:105)
at bolts.Task.completeImmediately(Task.java:863)
at bolts.Task.continueWith(Task.java:661)
at bolts.Task.continueWith(Task.java:672)
at bolts.Task$12.then(Task.java:766)
at bolts.Task$12.then(Task.java:754)
at bolts.Task$15.run(Task.java:917)
at bolts.BoltsExecutors$ImmediateExecutor.execute(BoltsExecutors.java:105)
at bolts.Task.completeAfterTask(Task.java:908)
at bolts.Task.access$100(Task.java:32)
at bolts.Task$11.then(Task.java:708)
at bolts.Task$11.then(Task.java:705)
at bolts.Task.runContinuations(Task.java:956)
at bolts.Task.trySetResult(Task.java:994)
at bolts.TaskCompletionSource.trySetResult(TaskCompletionSource.java:39)
at bolts.TaskCompletionSource.setResult(TaskCompletionSource.java:62)
at bolts.Task$15$1.then(Task.java:934)
at bolts.Task$15$1.then(Task.java:921)
at bolts.Task$14.run(Task.java:872)
at bolts.BoltsExecutors$ImmediateExecutor.execute(BoltsExecutors.java:105)
at bolts.Task.completeImmediately(Task.java:863)
at bolts.Task.continueWith(Task.java:661)
at bolts.Task.continueWith(Task.java:672)
at bolts.Task$15.run(Task.java:921)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)

Answer 1

回答这个问题为时已晚，但对于将来的读者来说，发生这种情况的原因之一是当您尝试从不存在该列的游标访问该列的值时。这意味着表名或列名不正确。

Android解析抛出IllegalStateException。需要调试方向

1 个答案: