Developing iOS Applications with Flex 4.5

Create Email

The URLRequest class can be used to open the Messages application to send text messages. By prepending the request with mailto:, iOS will launch the Email application when the navigateToURL method is called. There are several properties that can be passed into the URLRequest to set the send-to email address, the email subject, and the email message.

Figure 6-4 shows the sample application running, Figure 6-5 shows the email selection window being launched after the Send button has been clicked, and Figure 6-6 shows the properties being prepopulated in the Gmail application:

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
                  xmlns:s="library://ns.adobe.com/flex/spark">

    <fx:Script>
          <![CDATA[
               protected function sendIt_clickHandler(event:MouseEvent):void
               {
                     var s:String = "";
                     s += "mailto:";
                     s+= sendTo.text;
                     s+= "?";
                     s+= "subject=";
                     s+= subject.text;
                     s+= "&";
                     s+= "body=";
                     s+= message.text;
                     navigateToURL(new URLRequest(s)); } ]]> </fx:Script> <fx:Declarations> <!-- Place non-visual elements (e.g., services, value objects) here --> </fx:Declarations> <s:Label text="Send To" top="40" left="50"/> <s:TextInput id="sendTo" top="30" left="200" text="[e-mail]" width="300"/> <s:Label text="Subject" top="120" left="50"/> <s:TextInput id="subject" top="110" left="200" text="hello" width="300"/> <s:Label text="Message" top="200" left="50"/> <s:TextInput id="message" top="190" left="200" width="300"/> <s:Button id="sendIt" label="Send" ...