我正在尝试使用chrome.sockets.udp发送和接收udp数据包。我正在使用以下代码:
async broadcasting(messageSend)
{
var str2ab=function(str) {
var buf=new ArrayBuffer(str.length);
var bufView=new Uint8Array(buf);
for (var i=0; i<str.length; i++) {
bufView[i]=str.charCodeAt(i);
}
return buf;
}
// From https://developer.chrome.com/trunk/apps/app_hardware.html
var ab2str=function(buf) {
return String.fromCharCode.apply(null, new Uint8Array(buf));
};
var socketId;
var onReceive = function(info) {
console.log(info.data);
if (info.socketId !== socketId)
return;
};
console.log("Creaste");
var socketOption = {
persistent: true,
name: 'udpSocket',
bufferSize: 4096
};
chrome.sockets.udp.onReceiveError.addListener((data) => {
console.log('received error');
console.log(data);
});
chrome.sockets.udp.onReceive.addListener((data) => {
console.log('received');
console.log(data);
});
chrome.sockets.udp.create(socketOption, function(socketInfo) {
socketId = socketInfo.socketId;
// Setup event handler and bind socket.
console.log("socketId",socketId);
alert();
chrome.sockets.udp.onReceive.addListener(onReceive);
chrome.sockets.udp.bind(socketId,
"0.0.0.0", 0, function(result) {
console.log(" binding socket.");
if (result < 0) {
console.log("Erro binding socket.");
return;
}//52.20.16.20 40000j
chrome.sockets.udp.send(socketId, str2ab(ab2str(messageSend)),
'192.168.1.69', 63580, function(sendInfo) {
console.log("sent " + sendInfo.bytesSent);
});
});
});
}
但是从不调用create的回调,并且在控制台中我没有收到任何错误或任何未创建套接字的指示!我在真正的android设备上运行它。有什么主意吗?
问题是由于与另一个软件包发生冲突,我没有找到哪个软件包,而是通过启动一个新项目并仅安装我需要的软件包开始按预期工作。