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Javascript react本机应用程序中的Realm.objects()返回空对象_Javascript_Android_React Native_Realm - Fatal编程技术网

Javascript react本机应用程序中的Realm.objects()返回空对象

Javascript react本机应用程序中的Realm.objects()返回空对象,javascript,android,react-native,realm,Javascript,Android,React Native,Realm,我正在realm中创建一个db,但是当我想用realm.objects()查询数据时,返回空对象,如:{“0”:{},“1”:{},“2”:{}…etc},我的代码是下一个: import Realm from "realm"; const nombreEsquema = 'Imagen12'; class Imagen {} let esquema = Imagen.schema = { name: nombreEsquema, properties: { nombr

我正在realm中创建一个db,但是当我想用realm.objects()查询数据时,返回空对象,如:{“0”:{},“1”:{},“2”:{}…etc},我的代码是下一个:

import Realm from "realm";
const nombreEsquema = 'Imagen12';
class Imagen {}

let esquema = Imagen.schema = {
   name: nombreEsquema,
   properties: {
      nombre: {
         type: 'string'
      },
      uri: {
         type: 'string'
      },
      url: {
         type: 'string'
      },
   }
};

let dbRealm = Realm.open({
   schema: [esquema]
});

functionRealm() {
   dbRealm.then(realm => {
      realm.write(() => {
         realm.create(nombreEsquema, {
            nombre: 'David',
            url: 'My URL',
            uri: 'My URI'
         });
      });

      let images = realm.objects(nombreEsquema);
      console.log("------------------------------");
      for (let i of images) {
         console.log(i);
      }
   });
}

我阅读了realm的文档,但没有发现任何与此相关的问题,我的realm版本是5.0.2,我不知道我做得不好,我希望您能帮助我解决我的问题。

因此我也遇到了同样的问题。我通过以下步骤解决了这个问题:

  • 将领域包升级到5.0.3
    warn升级领域

  • 运行npx react native link realm(realm还不完全支持自动链接)

  • 按照以下页面顶部的说明验证链接是否正确进行:

  • 确保添加此行-->
    import io.realm.react.RealmReactPackage
    /MainApplication.java中的MainApplication.java顶部

  • **你不应该这么做,但以防万一

  • 在android/app/src/main/java/com/
    /MainApplication.java中检查您的软件包列表,确保其配置如下:
  • 打开
    /node\u modules/realm/android/src/main/java/io/realm/react/RealmReactModule.java

  • 在RealmReactModule类中添加以下行:


  • 希望这有帮助 实际上,您可以将realm升级到5.0.3,因为5.0.2上有一个bug
    请参见发布日志中的:

      @Override
      protected List<ReactPackage> getPackages() {
        @SuppressWarnings("UnnecessaryLocalVariable")
        List<ReactPackage> packages = new PackageList(this).getPackages();
        // Packages that cannot be autolinked yet can be added manually here, for example:
        // packages.add(new MyReactNativePackage());
    +   packages.add(new RealmReactPackage()); // <-- This line adds in the realm package.
        packages.add(new RNSensitiveInfoPackage());
        return packages;
      }
    
    Native module realm tried to override realm for module name realm. If this was your intention, set canOverrideExistingModule=true
    
    @Override
    public boolean canOverrideExistingModule() {
      return true;
    }