authonUserChanged设置用户为当前auth用户，然后使用React Native Firebase登录后为null

分类：编程问答

如何解决authonUserChanged设置用户为当前auth用户，然后使用React Native Firebase登录后为null

好吧...我真的不知道这个...

我的auth（）。onUserChanged函数将用户设置为当前用户，然后将其设置为null。

useAuth自定义钩子：

MacBook-Pro: ittradconsulting$ npm install -g expo-cli
npm WARN deprecated request@2.88.2: request has been deprecated,see https://github.com/request/request/issues/3142
npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated fsevents@1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated core-js@2.6.11: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please,upgrade your dependencies to the actual version of core-js@3.
npm WARN deprecated joi@11.4.0: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features,bug fixes,and security patches. If you are unable to upgrade at this time,paid support is available for older versions (hapi.im/commercial).
npm WARN deprecated hoek@4.2.1: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features,paid support is available for older versions (hapi.im/commercial).
npm WARN deprecated topo@2.0.2: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features,paid support is available for older versions (hapi.im/commercial).
/Users/ittradconsulting/.nvm/versions/node/v10.16.0/bin/expo -> /Users/ittradconsulting/.nvm/versions/node/v10.16.0/lib/node_modules/expo-cli/bin/expo.js
/Users/ittradconsulting/.nvm/versions/node/v10.16.0/bin/expo-cli -> /Users/ittradconsulting/.nvm/versions/node/v10.16.0/lib/node_modules/expo-cli/bin/expo.js
npm WARN notsup Unsupported engine for got@11.6.0: wanted: {"node":">=10.19.0"} (current: {"node":"10.16.0","npm":"6.14.8"})
npm WARN notsup Not compatible with your version of node/npm: got@11.6.0
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/traveling-fastlane-linux@1.15.1 (node_modules/expo-cli/node_modules/@expo/traveling-fastlane-linux):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/traveling-fastlane-linux@1.15.1: wanted {"os":"win32,linux","arch":"any"} (current: {"os":"darwin","arch":"x64"})
npm WARN notsup Unsupported engine for http2-wrapper@1.0.0-beta.5.2: wanted: {"node":">=10.19.0"} (current: {"node":"10.16.0","npm":"6.14.8"})
npm WARN notsup Not compatible with your version of node/npm: http2-wrapper@1.0.0-beta.5.2
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-freebsd-ia32@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-freebsd-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-freebsd-ia32@2.2.8: wanted {"os":"freebsd","arch":"ia32"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-sunos-x64@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-sunos-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-sunos-x64@2.2.8: wanted {"os":"sunos","arch":"x64"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-arm@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-linux-arm):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-arm@2.2.8: wanted {"os":"linux","arch":"arm"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-win32-ia32@2.2.8-beta.1 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-win32-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-win32-ia32@2.2.8-beta.1: wanted {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-freebsd-x64@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-freebsd-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-freebsd-x64@2.2.8: wanted {"os":"freebsd","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-x64@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-linux-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-x64@2.2.8: wanted {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-arm64@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-linux-arm64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-arm64@2.2.8: wanted {"os":"linux","arch":"arm64"} (current: {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-linux-ia32@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-linux-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-linux-ia32@2.2.8: wanted {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-darwin-ia32@2.2.8 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-darwin-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-darwin-ia32@2.2.8: wanted {"os":"darwin","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: @expo/ngrok-bin-win32-x64@2.2.8-beta.1 (node_modules/expo-cli/node_modules/@expo/ngrok-bin/node_modules/@expo/ngrok-bin-win32-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for @expo/ngrok-bin-win32-x64@2.2.8-beta.1: wanted {"os":"win32","arch":"x64"})
npm WARN notsup Unsupported engine for watchpack-chokidar2@2.0.0: wanted: {"node":"<8.10.0"} (current: {"node":"10.16.0","npm":"6.14.8"})
npm WARN notsup Not compatible with your version of node/npm: watchpack-chokidar2@2.0.0
npm WARN @pmmmwh/react-refresh-webpack-plugin@0.3.3 requires a peer of react-refresh@^0.8.2 but none is installed. You must install peer dependencies yourself.

+ expo-cli@3.26.2
added 18 packages from 6 contributors,removed 19 packages,updated 53 packages and moved 5 packages in 63.241s

和上下文提供程序：

import { useEffect,useState } from 'react'
import auth from '@react-native-firebase/auth'

function useAuth() {
  const [user,setUser] = useState<AuthUser | null>(null)

  // Refresh each time the user values change
  useEffect(() => {
    const subscriber = auth().onUserChanged(handleChange)
    return subscriber // unsubscribe on un-mount
  },[])

  function handleChange(authUser) {
    setUser(authUser)
    // Here is the log that show an uid then revert to null
    console.log(`useAuth handleChange set user to ${user ? user.uid : user}`)
  }

  return { user}
}

export default useAuth

知道它来自哪里吗？

谢谢

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