適用于雙平臺網(wǎng)絡狀態(tài)檢測

NetInfo.isConnected.fetch().done((isConnected) => {

console.log('First, is ' + (isConnected ? 'online' : 'offline'));

});

function handleFirstConnectivityChange(isConnected) {

console.log('Then, is ' + (isConnected ? 'online' : 'offline'));

?if (!isConnected) {

? ?AlertIOS.alert("網(wǎng)絡錯誤", "網(wǎng)絡連接失敗，請連接網(wǎng)絡后重試！"); ??

?}

NetInfo.isConnected.removeEventListener(

? ? 'change',

? ? ?handleFirstConnectivityChange

? ? );

}

NetInfo.isConnected.addEventListener(

? ? 'change',

? ? handleFirstConnectivityChange

);