React native 如何在react native中检查internet连接？

我想在启动应用程序时检查互联网连接，然后要求用户连接到互联网，如果他没有连接到互联网

你应该使用“@react native community/netinfo”库。NetInfo曾经是react native的一部分，但后来它从核心中分离出来。如果您想观察网络状态的变化，只需使用提供的addEventListener方法

import NetInfo from "@react-native-community/netinfo";

NetInfo.fetch().then(state => {
    console.log("Connection type", state.type);
    console.log("Is connected?", state.isConnected);
});

const unsubscribe = NetInfo.addEventListener(state => {
    console.log("Connection type", state.type);
    console.log("Is connected?", state.isConnected);
});

// Unsubscribe
unsubscribe();

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我相信这是一个复制品。检查这个问题：回答得好twboc

import NetInfo from "@react-native- 
community/netinfo";

NetInfo.fetch().then(state => {
console.log("Connection type", state.type);
console.log("Is connected?", state.isConnected);
});

const unsubscribe = NetInfo.addEventListener(state => 
{
console.log("Connection type", state.type);
console.log("Is connected?", state.isConnected);
});