BroadcastReceiver 中的领域事务不起作用

Question

我向用户显示带有操作的通知，我使用 BroadcastReceiver 处理这些操作，从那里我更新领域数据库，但它没有得到更新，即使我确定（通过日志）交易被执行。

NotificationBroadcastReceiver:

override fun onReceive(context: Context, intent: Intent) {

        val notionId = intent.getStringExtra(NOTION_ID_EXTRA)
        val actionType = intent.getIntExtra(ACTION_TYPE, ACTION_TYPE_PUTBACK)

        when (actionType) {
            ACTION_TYPE_PUTBACK -> {
                Toast.makeText(context, R.string.notion_is_putback, Toast.LENGTH_SHORT).show()
            }

            ACTION_TYPE_ARCHIVE -> {
                NotionsRealm.changeIdleState(notionId, true)
            }
        }

        val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        notificationManager.cancel(NotionsReminder.NOTION_NOTIFICATION_ID)

}

概念领域：

fun changeIdleState(id: String, state: Boolean) {
    val realm = Realm.getDefaultInstance()
    realm.executeTransaction {
        val notion = it.where<Notion>().equalTo("id", id).findFirst()

        notion?.isArchived = state
        debug("${notion?.isArchived}") //prints true to the log, but the data doesn't change.
    }
    closeRealm(realm)
}

private fun closeRealm(realm: Realm) {
    try {
        realm.close()
    } catch (e: Exception) {
        error(e)
    } finally {
        debug("realm closed")
    }
}

编辑：我只是让接收器启动一个空的 activity（没有布局）来处理数据库。同样的事情发生了。我认为这不再是 BroadcastReceiver 的问题。奇怪了，其他领域的交易运行完美的在其他activities/fragments.

Answer 1

事实证明这不是领域的问题，而是我如何触发广播，我是这样做的：

fun notificationAction(context: Context, id: String, actionType: Int): PendingIntent {
    return PendingIntent.getBroadcast(
            context, actionType,
            Intent(context, NotificationBroadcastReceiver::class.java).apply {
                putExtra(NotificationBroadcastReceiver.NOTION_ID_EXTRA, id)
                putExtra(NotificationBroadcastReceiver.ACTION_TYPE, actionType)
            }, 0)
}

我发现传递的id不正确，经过一番搜索我发现我应该在广播中包含这个标志：PendingIntent.FLAG_UPDATE_CURRENT所以它是这样的：

fun notificationAction(context: Context, id: String, actionType: Int): PendingIntent {
    return PendingIntent.getBroadcast(
            context, actionType,
            Intent(context, NotificationBroadcastReceiver::class.java).apply {
                putExtra(NotificationBroadcastReceiver.NOTION_ID_EXTRA, id)
                putExtra(NotificationBroadcastReceiver.ACTION_TYPE, actionType)
            }, PendingIntent.FLAG_UPDATE_CURRENT)
}

现在传递的id是正确的，我仍然不明白为什么会这样，或者为什么id完全不同（但不是随机的，我每次都看到相同的错误id）没有这个旗帜.

BroadcastReceiver 中的领域事务不起作用

realm transaction in BroadcastReceiver doesn't work

android

broadcastreceiver

realm

android-broadcastreceiver