我需要发送一个包含类别的JSON以及安装了我的应用程序的所有用户的消息，如下所示：
{category:"shoes", message:"New pair of shoes available"}
然后我需要仅向检查了与JSON中的类别匹配的特定选项的用户显示警告/通知。
我正在使用Ionic，NodeJS和Express。我怎么能这样做？
答案 0 :(得分：2)
Hello Shadow00, Then first of all you have to install FOUR Plugins for that. 1)cordova plugin add https://github.com/phonegap-build/PushPlugin // For notification 2)cordova plugin add cordova-plugin-device // For on Device Ready to call 3)cordova plugin add cordova-plugin-dialogs // For notification Dialog 4)cordova plugin add cordova-plugin-media // For Notification Sound
并生成API密钥，SenderId抛出开发人员console.and senderid过去以下代码。并且e.regid传递到服务器上。
<script type="text/javascript" src="PushNotification.js"></script>
<script type="text/javascript">
var pushNotification;
function onDeviceReady() {
$("#app-status-ul").append('<li>deviceready event received</li>');
document.addEventListener("backbutton", function(e)
{
$("#app-status-ul").append('<li>backbutton event received</li>');
if( $("#home").length > 0)
{
// call this to get a new token each time. don't call it to reuse existing token.
//pushNotification.unregister(successHandler, errorHandler);
e.preventDefault();
navigator.app.exitApp();
}
else
{
navigator.app.backHistory();
}
}, false);
try
{
pushNotification = window.plugins.pushNotification;
$("#app-status-ul").append('<li>registering ' + device.platform + '</li>');
if (device.platform == 'android' || device.platform == 'Android' ||
device.platform == 'amazon-fireos' ) {
pushNotification.register(successHandler, errorHandler, {"senderID":"661780372179","ecb":"onNotification"}); // required!
} else {
pushNotification.register(tokenHandler, errorHandler, {"badge":"true","sound":"true","alert":"true","ecb":"onNotificationAPN"}); // required!
}
}
catch(err)
{
txt="There was an error on this page.\n\n";
txt+="Error description: " + err.message + "\n\n";
alert(txt);
}
}
// handle APNS notifications for iOS
function onNotificationAPN(e) {
if (e.alert) {
$("#app-status-ul").append('<li>push-notification: ' + e.alert + '</li>');
// showing an alert also requires the org.apache.cordova.dialogs plugin
navigator.notification.alert(e.alert);
}
if (e.sound) {
// playing a sound also requires the org.apache.cordova.media plugin
var snd = new Media(e.sound);
snd.play();
}
if (e.badge) {
pushNotification.setApplicationIconBadgeNumber(successHandler, e.badge);
}
}
// handle GCM notifications for Android
function onNotification(e) {
$("#app-status-ul").append('<li>EVENT -> RECEIVED:' + e.event + '</li>');
switch( e.event )
{
case 'registered':
if ( e.regid.length > 0 )
{
$("#app-status-ul").append('<li>REGISTERED -> REGID:' + e.regid + "</li>");
// Your GCM push server needs to know the regID before it can push to this device
// here is where you might want to send it the regID for later use.
console.log("regID = " + e.regid);
}
break;
case 'message':
// if this flag is set, this notification happened while we were in the foreground.
// you might want to play a sound to get the user's attention, throw up a dialog, etc.
if (e.foreground)
{
$("#app-status-ul").append('<li>--INLINE NOTIFICATION--' + '</li>');
// on Android soundname is outside the payload.
// On Amazon FireOS all custom attributes are contained within payload
var soundfile = e.soundname || e.payload.sound;
// if the notification contains a soundname, play it.
// playing a sound also requires the org.apache.cordova.media plugin
var my_media = new Media("/android_asset/www/"+ soundfile);
my_media.play();
}
else
{ // otherwise we were launched because the user touched a notification in the notification tray.
if (e.coldstart)
$("#app-status-ul").append('<li>--COLDSTART NOTIFICATION--' + '</li>');
else
$("#app-status-ul").append('<li>--BACKGROUND NOTIFICATION--' + '</li>');
}
$("#app-status-ul").append('<li>MESSAGE -> MSG: ' + e.payload.message + '</li>');
//android only
$("#app-status-ul").append('<li>MESSAGE -> MSGCNT: ' + e.payload.msgcnt + '</li>');
//amazon-fireos only
$("#app-status-ul").append('<li>MESSAGE -> TIMESTAMP: ' + e.payload.timeStamp + '</li>');
break;
case 'error':
$("#app-status-ul").append('<li>ERROR -> MSG:' + e.msg + '</li>');
break;
default:
$("#app-status-ul").append('<li>EVENT -> Unknown, an event was received and we do not know what it is</li>');
break;
}
}
function tokenHandler (result) {
$("#app-status-ul").append('<li>token: '+ result +'</li>');
// Your iOS push server needs to know the token before it can push to this device
// here is where you might want to send it the token for later use.
}
function successHandler (result) {
$("#app-status-ul").append('<li>success:'+ result +'</li>');
}
function errorHandler (error) {
$("#app-status-ul").append('<li>error:'+ error +'</li>');
}
document.addEventListener('deviceready', onDeviceReady, true);
</script>
<div id="home">
<div id="app-status-div">
<ul id="app-status-ul">
<li>Cordova PushNotification Plugin Demo</li>
</ul>
</div>
</div>