BackendLessCollection<E> 未投射到列表<E>

Question

下面的代码从服务器获取数据但无法转换为列表
此代码显示错误 java.util.HashMap cannot be cast to com.tesla.developer.teslatvinverters.BackendlessClasses.InvertersData 相同的代码适用于其他后端类

  Backendless.Data.of(InvertersData.class).find(new    AsyncCallback<BackendlessCollection<InvertersData>>() {
            @Override
            public void handleResponse(BackendlessCollection<InvertersData> inverterData) {
                // all Contact instances have been found

                // error is in the Toast when i try to get id of object , but it gives the size of data accurate

                List<InvertersData> allData = inverterData.getData();
                Toast.makeText(MainActivity.this, "" +allData.get(0).getObjectId(),Toast.LENGTH_SHORT).show();
                // iterate over the received objects
                Iterator<InvertersData> iterator = allData.iterator();

                while( iterator.hasNext())
                {

                     Log.e("Object  :", ""+iterator.next().getObjectId());
                }


            }

        });

Answer 1

您需要明确告诉 Backendless 如何将 HashMap 转换为 class。

在应用程序初始化期间把它放在某个地方。

Backendless.Persistence.mapTableToClass( "InvertersData", InvertersData.class );

BackendLessCollection<E> 未投射到列表<E>

BackendLessCollection<E> not casting to List<E>

android

backendless