react-native-watch-appstate

React Native appState hook is a custom react hook, built to handle iOS or Android or Harmony appState in your react component

自定义 appState hooks 适用于三端[android/ios/harmony]

_ AppState 可以告诉您应用程序是在前台还是后台，并在状态改变时通知您。 _

rn 官方地址 appState https://reactnative.dev/docs/appstate

安装

yarn add react-native-watch-appstate

OR

npm install react-native-watch-appstate

Example

import React from "react";
import { Text, View } from "react-native";
import useAppState from "react-native-appstate-hook";

export default function App() {
  const appState = useAppState({
    onChange: (newAppState) =>
      console.warn("App state changed to ", newAppState),
    onForeground: () => console.warn("App went to Foreground"),
    onBackground: () => console.warn("App went to background"),
  });

  return (
    <View
      style={{
        textAlign: "center",
        backgroundColor: "white",
        flex: 1,
        justifyContent: "center",
      }}
    >
      <Text>App State is: {appState}</Text>
    </View>
  );
}