پاسخ به: undefined is not a function (evaluating 'navigation.dispatch')

[UKbed990]

You can also wrap your component with withNavigation function from react-navigation. That will make sure you have valid navigation prop.

JavaScript

import { withNavigation } from react-navigation; ... connect(mapStateToProps, mapDispatchToProps)(withNavigation(SideBar));

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import { withNavigation } from react-navigation;   ...   connect(mapStateToProps, mapDispatchToProps)(withNavigation(SideBar));

Alternatively, you may pass this.props.navigation from parent component too.