android - SQLiteBlobTooBigException：行太大，无法放入 CursorWindow requiredPos=0，totalRows=1

Question

我只在android 9中遇到异常，重新安装后一切看起来都很好，

例外：

android.database.sqlite.SQLiteBlobTooBigException: Row too big to fit into CursorWindow requiredPos=0, totalRows=1...

代码：

Cursor cursor = database.query(......);
    if(cursor == null || cursor.getCount() < 0) { //Here is the error
        Log.d("Error", "count : null");
        return "";
    }

编辑：

java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:354)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
at java.util.concurrent.FutureTask.run(FutureTask.java:271)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:764)

Caused by: android.database.sqlite.SQLiteBlobTooBigException: Row too big to fit into CursorWindow requiredPos=0, totalRows=1
at android.database.sqlite.SQLiteConnection.nativeExecuteForCursorWindow(Native Method)
at android.database.sqlite.SQLiteConnection.executeForCursorWindow(SQLiteConnection.java:859)
at android.database.sqlite.SQLiteSession.executeForCursorWindow(SQLiteSession.java:836)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:62)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:149)
at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:137)

提前谢谢各位

标签： androidsqliteandroid-database

Answer 1

This worked for me, you have to put it on your Main Activity.

try {
    Field field = CursorWindow.class.getDeclaredField("sCursorWindowSize");
    field.setAccessible(true);
    field.set(null, 100 * 1024 * 1024); //the 100MB is the new size
    } catch (Exception e) {
       e.printStackTrace();
    }