[未处理的承诺拒绝：TypeError：未定义不是对象（正在评估'_expoPermissions.Permissions.getAsync'）]

Question

我无法获得推送通知的令牌，并且权限不起作用：

  

未处理的承诺拒绝：TypeError：未定义不是对象（正在评估'_expoPermissions.Permissions.getAsync'）

这是代码：

registerForPushNotificationsAsync = async ()=> {
  const { status } = await Permissions.getAsync(Permissions.NOTIFICATIONS);
  let finalStatus = status;
  if (status !== 'granted') {
    const { status } = await Permissions.askAsync(Permissions.NOTIFICATIONS);
    finalStatus = status;
  }
  if (finalStatus !== 'granted') {
    return;
  }
  let token = await Notifications.getExpoPushTokenAsync();
  console.log(token);
}

Answer 1

权限从“ expo”程序包移至“ expo-permissions”

您必须先安装expo-permissions软件包，然后使用以下语法将其导入

import * as Permissions from 'expo-permissions';