Testing | NativeBase | Universal Components for React and React Native

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NativeBase
3.4.x
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NativeBase
Introduction
Getting Started
Installation
Setup NativeBase Provider
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Contribution
Creating a Universal App with NativeBase and Solito
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Core Concepts
Utility First
Utility Props Specificity
Design Tokens
Pseudo Props: Overview
Pseudo Props: Dos & Don'ts
Internal Pseudo Props
New
Responsive
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Utility Props
Color mode (Dark Mode)
NativeBase Factory
SafeAreaView Props
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Theme
Default Theme
Customizing Theme
Customizing Fonts
Customizing Components
Making components dark mode compatible
Breakpoints
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TypeScript
Layout
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Container
Flex
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ReactNative Components
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View
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useDisclose
useBreakpointValue
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useColorModeValue
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Examples
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Migration
Upgrading to v3
Upgrading to 3.2.0 from 3.x
Upgrading to 3.4.0 from 3.3.x
Components Migration
ActionSheet
Badge
Button
Card
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DatePicker
DeckSwiper
Drawer
FABs
FooterTab
Form
Header
Icon
Layout
Picker
Radio Button
Searchbar
Segment
Spinner
SwipeList
Tabs
Thumbnail
Toast
Typography
More
Changelog
Testing
FAQ's
More Props
If you are starting a new project, please try gluestack-ui for better performance and new design.
Testing
NativeBase works with react-native's jest preset or expo's jest-expo preset. However, there's one thing you'll need to do for it to work as expected.
Adding initialWindowMetrics in NativeBaseProvider.
NativeBaseProvider uses
SafeAreaContext
which needs initialWindowMetrics to be passed to the Provider while testing.
Not following the above may lead to an error related to SafeAreaProvider while running yarn test.
To fix the above issue, you can simply pass initialWindowMetrics to NativeBaseProvider in your tests.
Copy
const inset = {
  frame: { x: 0, y: 0, width: 0, height: 0 },
  insets: { top: 0, left: 0, right: 0, bottom: 0 },
};


<NativeBaseProvider initialWindowMetrics={inset}>
  {children}
</NativeBaseProvider>;
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