import com.google.samples.apps.iosched.io.model.Room; //导入依赖的package包/类
@Override
public void makeContentProviderOperations(ArrayList<ContentProviderOperation> list) {
    Uri uri = ScheduleContractHelper.setUriAsCalledFromSyncAdapter(
            ScheduleContract.Rooms.CONTENT_URI);

    // The list of rooms is not large, so for simplicity we delete all of them and repopulate
    list.add(ContentProviderOperation.newDelete(uri).build());
    for (Room room : mRooms.values()) {
        ContentProviderOperation.Builder builder = ContentProviderOperation.newInsert(uri);
        builder.withValue(ScheduleContract.Rooms.ROOM_ID, room.id);
        builder.withValue(ScheduleContract.Rooms.ROOM_NAME, room.name);
        builder.withValue(ScheduleContract.Rooms.ROOM_FLOOR, room.floor);
        list.add(builder.build());
    }
}
 

import com.google.samples.apps.iosched.io.model.Room; //导入依赖的package包/类
@Override
public void makeContentProviderOperations(ArrayList<ContentProviderOperation> list) {
    Uri uri = ScheduleContract.addCallerIsSyncAdapterParameter(
            ScheduleContract.Rooms.CONTENT_URI);

    // The list of rooms is not large, so for simplicity we delete all of them and repopulate
    list.add(ContentProviderOperation.newDelete(uri).build());
    for (Room room : mRooms.values()) {
        ContentProviderOperation.Builder builder = ContentProviderOperation.newInsert(uri);
        builder.withValue(ScheduleContract.Rooms.ROOM_ID, room.id);
        builder.withValue(ScheduleContract.Rooms.ROOM_NAME, room.name);
        builder.withValue(ScheduleContract.Rooms.ROOM_FLOOR, room.floor);
        list.add(builder.build());
    }
}
 

import com.google.samples.apps.iosched.io.model.Room; //导入依赖的package包/类
@Override
public void process(JsonElement element) {
    for (Room room : new Gson().fromJson(element, Room[].class)) {
        mRooms.put(room.id, room);
    }
}
 

import com.google.samples.apps.iosched.io.model.Room; //导入依赖的package包/类
@Override
public void process(@NonNull Gson gson, @NonNull JsonElement element) {
    for (Room room : gson.fromJson(element, Room[].class)) {
        mRooms.put(room.id, room);
    }
}