Ok I'm stuck at this point where I'm trying to insert data into sqlite database. It's crashing cause it is saying my db is null I think. I think I am not initializing (or maybe another term... basically to recognize what I did in the other class) in my Additem class but not sure how to solve and why exactly.Ok I'm stuck at this point where I'm trying to
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SQLite插入上的空指针异常
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