Flutter : LateInitializationError: Field ‘data’ has not been initialized

You don’t want a late variable, you want a nullable one. If you need to check if something is initialized, you should be using a nullable variable instead and your code is already set up to check for null

just change

to

E.g.

change to

参考链接


Flutter : LateInitializationError: Field ‘data’ has not been initialized, got error

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