Question

我使用下面的代码块将一个Customer对象添加到Realm，成功添加了对象。但是，当项目插入完成或失败时，我试图通过Toast消息提供反馈。

@Override
public void addCustomer(final Customer customer) {
    Realm insertRealm = Realm.getDefaultInstance();
    insertRealm.executeTransactionAsync(new Realm.Transaction() {
        @Override
        public void execute(Realm backgroundRealm) {
            long id = customerPrimaryKey.incrementAndGet();
            customer.setId(id);
            backgroundRealm.copyToRealm(customer);
        }
    }, new Realm.Transaction.OnSuccess() {
        @Override
        public void onSuccess() {
            Log.d(TAG, "Customer Added");
        }
    }, new Realm.Transaction.OnError() {
        @Override
        public void onError(Throwable error) {
            Log.d(TAG, error.getMessage());
        }
    });
    insertRealm.close();

}

上面的代码块成功插入了对象，但是没有达到成功和错误回调，因为我关闭了用于启动它的Realm。如果我不关闭Realm，则会达到onError和onSuccess回调，但是，应用程序将崩溃，因为Realm已泄露。

我试图更新代码以关闭回调中的Realm，但它仍然崩溃。

public void addCustomer(final Customer customer) {
    Realm insertRealm = Realm.getDefaultInstance();
    insertRealm.executeTransactionAsync(new Realm.Transaction() {
        @Override
        public void execute(Realm backgroundRealm) {
            long id = customerPrimaryKey.incrementAndGet();
            customer.setId(id);
            backgroundRealm.copyToRealm(customer);
        }
    }, new Realm.Transaction.OnSuccess() {
        @Override
        public void onSuccess() {
            Log.d(TAG, "Customer Added");
            insertRealm.close();
        }
    }, new Realm.Transaction.OnError() {
        @Override
        public void onError(Throwable error) {
            Log.d(TAG, error.getMessage());
            insertRealm.close();
        }
    });        

}

我的问题是，是否有办法在Activity / Fragment LifeCycle之外关闭Realm？我可以保留Realm的全局单例并注入使用它的类吗？

更新 - 添加了StackTrack

11-13 06:59:07.545 2249-2257/com.google.android.gms W/SQLiteConnectionPool: A SQLiteConnection object for database '/data/user/0/com.google.android.gms/databases/metrics.db' was leaked!  Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.
11-13 06:59:07.549 2249-2257/com.google.android.gms W/SQLiteConnectionPool: A SQLiteConnection object for database '/data/user/0/com.google.android.gms/databases/help_responses.db' was leaked!  Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.
11-13 06:59:07.557 2249-2257/com.google.android.gms W/SQLiteConnectionPool: A SQLiteConnection object for database '/data/user/0/com.google.android.gms/databases/auto_complete_suggestions.db' was leaked!  Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.

Answer 1

在onSuccess和onError回调中关闭Realm工作，我正在努力解决的问题是泄漏的现有SQLiteOpenHelper类。从任何对SQLite的引用中清除项目，一切正常。这个代码块再次起作用。

}, new Realm.Transaction.OnSuccess() {
        @Override
        public void onSuccess() {
            Log.d(TAG, "Customer Added");
            insertRealm.close();
        }
    }, new Realm.Transaction.OnError() {
        @Override
        public void onError(Throwable error) {
            Log.d(TAG, error.getMessage());
            insertRealm.close();
        }
    });

如何在活动/片段之外正确关闭领域

1 个答案: