java - 该 Realm 的架构中缺少该类

Question

项目设置

• 安卓工作室 2.3.3
• Realm 3.5.0

来源

Realm Controller .java

public RealmController(Context context) {
    try {
        this.context = context;
        Realm.init(context);
        PrintLog("RealmController", "RealmController", "Init realm", LOG_LEVEL_INFO);
        realmInstance = Realm.getDefaultInstance();
        PrintLog("RealmController", "RealmController", "Getting realm instance", LOG_LEVEL_INFO);
    }
    catch (Exception err) {
        PrintLog("RealmController", "RealmController", "Error: " + err.getMessage(), LOG_LEVEL_ERROR);
    }
}

销售数据.java

public class SellingDataTable extends RealmObject {

    public Date todaysDate;
    public int sellingData;

    public Date getTodaysDate() {
        return todaysDate;
    }
    public void setTodaysDate(Date todaysDate) {
        this.todaysDate = todaysDate;
    }
    public int getSellingData() {
        return sellingData;
    }
    public void setSellingData(int sellingData) {
        this.sellingData = sellingData;
    }
}

预期行为

• 获取 Realm 默认实例。

实际行为

要崩溃了。

08-09 15:24:16.044 [I2maxMain] {Init} (preparing ui)
08-09 15:24:16.120 [RealmController] {RealmController} (Init realm)
08-09 15:24:16.129 [RealmController] {RealmController} (Error: The 'SellingDataTable' class is missing from the schema for this Realm.)

Answer 1

如果您在设备上创建一个具有给定模式的 Realm ，那么如果您开始修改模式(通过添加新类、添加新字段、删除字段、添加/删除 @Index、添加/removing @Required、更改类型等)然后您需要提供迁移(例如 here)，或者您需要指定 deleteIfMigrationNeeded()你的 Realm 配置。