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我想实现这个插件Phonegap system notification。执行Phonegap系统通知插件
我打电话给我的Javascript里面的navigator.systemNotification.onBackground()和navigator.systemNotification.updateNotification(contentText, tickerText, number)方法，这样当新的RSS提要标题出现时，我应该得到一个系统通知和每个新的RSS提要的更新计数器。
- 现在我得到系统通知，当一个新的饲料存在，但 当第二进料出现的柜台上没有通知（图标/图片）增加它仍然 显示1。
- 我希望即使在后台运行通知方法，但我无法测试作为计数器的 未更新。
- 我可以清除系统通知，当我点击清除 按钮。当用户点击 系统通知时是否可以清除它？
我想我在做我的JavaScript的错误。
var oldEntry="";
document.addEventListener("deviceready", onDeviceReady, false);
// PhoneGap is ready
//
function onDeviceReady() {
// Empty
}
// Show a custom alert
//
function sendRequest(){
getRss("http://rss.cnn.com/rss/cnn_latest.rss.xml");
setTimeout('showAlert(newEntry.title)',4000);
}
function showAlert(data) {
var st = randomString();
if(oldEntry==""){
oldEntry = data;
navigator.systemNotification.onBackground();
navigator.systemNotification.updateNotification(data, 'test' , '1');
} else {
if(oldEntry!=data){
navigator.notification.alert(
data, // message
'New Rss Entry', // title
'New Rss Entry');
oldEntry = data;
}
}
setTimeout('sendRequest()',7000);
}
function randomString() {
var chars = "ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
var string_length = 8;
var randomstring = '';
for (var i=0; i<string_length; i++) {
var rnum = Math.floor(Math.random() * chars.length);
randomstring += chars.substring(rnum,rnum+1);
}
return randomstring;
}
sendRequest();
这是systemnotification.js：
function SystemNotification() {
}
SystemNotification.prototype.notificationEnabled = false;
SystemNotification.prototype.newCount = 0; //to keep track of multiple notifications events
SystemNotification.prototype.enableNotification = function() {
this.notificationEnabled = true;
};
SystemNotification.prototype.disableNotification = function() {
this.notificationEnabled = false;
};
SystemNotification.prototype.onBackground = function() {
this.enableNotification();
};
SystemNotification.prototype.onForeground = function() {
this.disableNotification();
};
SystemNotification.prototype.createStatusBarNotification = function (contentTitle, contentText, tickerText) {
PhoneGap.exec(null, null, "systemNotification", "createStatusBarNotification", [contentTitle, contentText, tickerText]);
};
SystemNotification.prototype.updateNotification = function (contentText, tickerText, number) {
this.newCount++;
var contentTitle = "my title";
if (this.newCount === 1) {
this.createStatusBarNotification(contentTitle, contentText, tickerText);
} else {
PhoneGap.exec(null, null, "systemNotification", "updateNotification", [contentTitle, contentText, this.newCount]);
this.showTickerText(tickerText); //optional
}
};
SystemNotification.prototype.cancelNotification = function (contentText) {
this.newCount--;
if (this.newCount === 0) {
PhoneGap.exec(null, null, "systemNotification", "cancelNotification", []);
}
else {
//updating the notification
var contentTitle = "my title";
PhoneGap.exec(null, null, "systemNotification", "updateNotification", [contentTitle, contentText, this.newCount]);
}
};
SystemNotification.prototype.showTickerText = function (tickerText) {
PhoneGap.exec(null, null, "systemNotification", "showTickerText", [tickerText]);
};
SystemNotification.prototype.touch = function() {
PhoneGap.exec(null, null, "systemNotification", "touch", []);
};
PhoneGap.addConstructor(function() {
if (typeof(navigator.systemNotification) == "undefined") {
navigator.systemNotification = new SystemNotification();
navigator.systemNotification.touch(); //this ensures that the plugin is added when phonegap kicks off
}
});
这是systemnotification.java：
public class SystemNotification extends Plugin {
final int notif_ID = 1234;
NotificationManager notificationManager;
Notification note;
PendingIntent contentIntent;
@Override
public PluginResult execute(String action, JSONArray args, String callbackId)
{
PluginResult.Status status = PluginResult.Status.OK;
String result = "";
try {
if (action.equals("createStatusBarNotification")) {
this.createStatusBarNotification(args.getString(0), args.getString(1), args.getString(2));
}
else if (action.equals("updateNotification")) {
this.updateNotification(args.getString(0), args.getString(1), args.getInt(2));
}
else if (action.equals("cancelNotification")) {
this.cancelNotification();
}
else if (action.equals("showTickerText")) {
this.showTickerText(args.getString(0));
}
return new PluginResult(status, result);
} catch(JSONException e) {
return new PluginResult(PluginResult.Status.JSON_EXCEPTION);
}
}
private void updateNotification(String contentTitle, String contentText, int number)
{
note.setLatestEventInfo(this.ctx, contentTitle, contentText, contentIntent);
note.number = number;
notificationManager.notify(notif_ID,note);
}
private void createStatusBarNotification(String contentTitle, String contentText, String tickerText)
{
notificationManager = (NotificationManager) this.ctx.getSystemService(Context.NOTIFICATION_SERVICE);
note = new Notification(R.drawable.rss, tickerText, System.currentTimeMillis());
//change the icon
Intent notificationIntent = new Intent(this.ctx, Yfs.class);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent = notificationIntent.setFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
contentIntent = PendingIntent.getActivity(this.ctx, 0, notificationIntent, 0);
note.setLatestEventInfo(this.ctx, contentTitle, contentText, contentIntent);
note.number = 1; //Just created notification so number=1. Remove this line if you dont want numbers
notificationManager.notify(notif_ID,note);
}
private void cancelNotification()
{
notificationManager.cancel(notif_ID);
}
private void showTickerText(String tickerText)
{
note.tickerText = tickerText;
notificationManager.notify(notif_ID,note);
}
public void onPause()
{
super.webView.loadUrl("javascript:navigator.systemNotification.onBackground();");
}
public void onResume()
{
super.webView.loadUrl("javascript:navigator.systemNotification.onForeground();");
}
}