什么是解析对象和对象ID？

Question

This question is about Parse

From what I've found,

Each ParseObject contains key-value pairs of JSON-compatible data. This data is schemaless, which means that you don't need to specify ahead of time what keys exist on each ParseObject. You simply set whatever key-value pairs you want.

However as a learner, I got multiple questions :

• Can I set my own objectID while saving data?
• Does the objectID varies when pushed from different devices? If so, how to retrieve those data?

Answer 1

Can I set my own objectID while saving data? yes you can

ParseObject parseObject = new ParseObject("<ClassName>");
parseObject.setObjectId("<ObjectId>");

Does the objectID varies when pushed from different devices?

every object has unique ID even if they created by the same device.