Learn Windows Phone 7 development together (12. Push notification)

I.Introduction

Push notificationYesWindows Phone 7One of the special features in, this feature allows common developers to achieve multi-tasking in disguise (although not really multi-tasking ). It is a mobile app andWebServiceA dedicated, persistent, and stable channel is established between them to push notifications. After the channel is established, the mobile app can receiveWebService.

 

II.Category

ForPush notificationThere are three main types:

1.Tile notification:

Yes, it can be changed.Quick lanuch AreaIcon content (image, text, etc.) in. HoweverProgramPIN to start,.

2.Toast notification:

Display a prompt bar on the screen. Click the prompt bar to open the application.

3.Raw notification:

Is used directlyHTTPMethod to receive (HTTP polling) Notification method. And is invisible. notifications will be sent in the future.

For the above notifications, a server mustPush notificationTo send notifications, That is to say to usePush notificationAll require a server.

III.Create a server

For the server, sending different notifications is based onHTTPMethod, but when sending, You need to configure the corresponding parameters to tellPush Notification ServiceWhat is the sending type.

HttpwebrequestRequest = (Httpwebrequest)Webrequest. Create (channeluri );

Request. method =Webrequestmethods.HTTP. Post;

Request. contenttype ="Text/XML; charset = UTF-8";

Request. contentlength = icationicationmessage. length;

Request. headers ["X-messageid"] =Guid. Newguid (). tostring ();

 

1. Toast notification:

Request. headers ["X-windowsphone-target"] ="Toast";

Request. headers [X-icationicationclass]

 

Message:

"Content-Type: text/XML \ r \ NX-windowsphone-target: token \ r \ n"

<? XML version = "1.0" encoding = "UTF-8"?>

<WP: Notification xmlns: Wp = "wpnotification">

<WP: Tile>

<WP: backgroundimage>

<Background image path>

</WP: backgroundimage>

<WP: Count>

<Count>

</WP: Count>

<WP: title>

<Title>

</WP: title>

</WP: Tile>

</WP: Notification>

 

2. Token notification:

Request. headers ["X-windowsphone-target"] ="Token";

Request. headers [X-icationicationclass]

 

Message:

"Content-Type: text/XML \ r \ NX-windowsphone-target: Toast \ r \ n"

<? XML version = "1.0" encoding = "UTF-8"?>

<WP: Notification xmlns: Wp = "wpnotification">

<WP: Toast>

<WP: text1>

<String>

</WP: text1>

<WP: text2>

<String>

</WP: text2>

</WP: Toast>

</WP: Notification>

3. Raw notification

Request. headers [X-icationicationclass]

 

Request. begingetrequeststream ();

StreamRequeststream = request. endgetrequeststream ();

Requeststream. beginwrite (Message );

 

ResponseData

Response. statuscode// OKOtherwise, you can check the corresponding error code table and check the table to get the current status.

Response. headers [X-messageid]

Response. headers [X-deviceconnectionstatus]

Response. headers [X-subscriptionstatus]

Response. headers [X-icationicationstatus]

 

 

 

 

 

 

 

4.Create a client

HttpicationicationchannelHttpchannel =Httpicationicationchannel. Find (channelname );

Httpchannel. open ();

//BindNotification

Httpchannel. bindtoshelltoast ();

Httpchannel. bindtoshelltile (URIs );

 

//ObtainNotification channel URI

Httpchannel. channeluriupdated + =New Eventhandler<Icationicationchannelurieventargs> (Httpchannel_channeluriupdated );

//ObtainRaw notification

Httpchannel. httpicationicationreceived + =New Eventhandler<Httpicationeventargs> (Httpchannel_httpicationicationreceived );

//ObtainToast notification

Httpchannel. shelltoastnotificationreceived + =New Eventhandler<Icationicationeventargs> (Httpchannel_shelltoastnotificationreceived );

//ObtainPush notification error message

Httpchannel. erroccurred + =New Eventhandler<Icationicationchannelerroreventargs> (Httpchannel_exceptionoccurred );

ForTile notificationIs received by the system, so there is no correspondingEvent.

The above isPush notificationSome basic steps, the specific instance inWp7trainningkit.