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Flutterkey使用方式

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  • 详解Flutter中key的正确使用方式

    目录1、什么是key2、key的更新原理3、key的分类GlobalKeyLocalKey总结1、什么是key Widget中有个可选属性key,顾名思义,它是组件的标识符,当设置了key,组件更新时会根据新老组件的key是否相等来进行更新,可以提[详细]

    2023-01-20 10:17 分类:开发
  • How can I give a variable to an action listener?

    I have a static variable partner in the class. And I want to set a value of these variable whenever a radio button is pressed. This is the code I tried to use:[详细]

    2022-12-23 11:50 分类:问答