Android SQLITE Illegal State Exception [duplicate]

问题

This question already has answers here:

java.lang.IllegalStateException: attempt to re-open an already-closed object (2 answers)

Closed 4 years ago.

I am using the following code to add items to the Database :

public static void insertQuestion(Context c,JSONArray jarr,String search) throws JSONException {
        DatabaseWrapper databaseWrapper = new DatabaseWrapper(c);
        SQLiteDatabase database = databaseWrapper.getWritableDatabase();
        ContentValues values = postToContentValues2(jarr);
        values.put(QuestionORM.COLUMN_SEARCH,search);
        long questionId = database.insert(QuestionORM.TABLE_NAME, "null", values);
        Log.e(TAG, "Inserted new Question with ID: " + questionId);
        database.close();
    }

But I get an error saying

"attempt to re-open an already-closed object"

on this line :

SQLiteDatabase database = databaseWrapper.getWritableDatabase();

How do I resolve this ?

Thanks !

回答1:

check before open it

if(database != null && database.isOpen()){
// if open then don't open
} 

---- UPDATE ----

// add this method in your class calss

private SQLiteDatabase myDataBase;

...

    public boolean isDatabaseOpened() {
        if (myDataBase == null) {
            return false;
        }
        return myDataBase.isOpen();
    }

if method returns false then only call getWritableDatabase() or getReadableDatabas() as per your requirement.

来源：https://stackoverflow.com/questions/29961755/android-sqlite-illegal-state-exception