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📜  Switch React Native Paper - Javascript (1)

📅  最后修改于: 2023-12-03 14:47:48.667000             🧑  作者: Mango

Switch React Native Paper - Javascript

React Native is a popular open-source framework used for developing cross-platform mobile apps using JavaScript. It provides developers with a set of reusable components, which help in speeding up the development process.

One such component is the Switch component provided by React Native Paper, which allows users to toggle between two options. It can be used for a wide variety of functions, such as toggling settings, night mode, etc.

Installation

To install React Native Paper, you can use npm. Run the following command in your terminal:

npm install react-native-paper

Once installed, import the Switch component from React Native Paper:

import { Switch } from 'react-native-paper';
Usage

Here's how you can use the Switch component in your React Native app:

import React, { useState } from 'react';
import { Switch } from 'react-native-paper';
import { View, StyleSheet } from 'react-native';

const App = () => {
  const [isSwitchOn, setIsSwitchOn] = useState(false);

  const onToggleSwitch = () => {
    setIsSwitchOn(!isSwitchOn);
  };

  return (
    <View style={styles.container}>
      <Switch value={isSwitchOn} onValueChange={onToggleSwitch} />
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    alignItems: 'center',
    justifyContent: 'center',
    flex: 1,
  },
});

export default App;

In the above example, we've used the useState hook to define the initial state of the switch (false). We've then defined an onToggleSwitch function that is called every time the switch is toggled. This function sets the state of the switch by calling setIsSwitchOn.

Finally, we've rendered the switch inside a view container using the Switch component, passing in the state and onToggleSwitch function as props.

Props

Here are some of the props that can be passed to the Switch component:

| Prop | Type | Description | |-------------------|-----------|---------------------------------------------------------| | value | boolean | The value/state of the switch | | onValueChange | function | Callback function that is called when the switch is toggled | | disabled | boolean | Whether the switch is disabled or not | | color | string | Color of the switch | | style | object | Style object to be applied to the switch |

Conclusion

Switch React Native Paper is a versatile component that can be used for a wide range of functions in your React Native app. Its simple syntax and easy to understand functionality make it a go-to choice for many developers.