Page 81 - DCAP512_WAP_AND_WML

Unit 6: Card Navigation

User Interface Variations Notes
The function of our application should be mainly the same across various devices.

 The user interfaces can vary considerably from one device to another.
 The implementation and user interaction can fluctuate and we must plan for this

Example: A WML deck with two cards - one for user input and one for displaying the
result - can be set up, as demonstrated in this example:
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">

<wml>
<card id="card1" title="Tutorial">
<do type="accept" label="Answer">
<go href="#card2"/>
</do>
<p>
<select name="name">

<option value="HTML">HTML Tutorial</option>
<option value="XML">XML Tutorial</option>
<option value="WAP">WAP Tutorial</option>
</select>
</p>
</card>
<card id="card2" title="Answer">
<p>
You selected: $(name)

</p>
</card>
</wml>
Example Explained
The Document Prolog and the First Tag
<?xml version=”1.0"?>
<!DOCTYPE wml PUBLIC “-//WAPFORUM//DTD WML 1.1//EN”
“http://www.wapforum.org/DTD/wml_1.1.xml”>

The first lines in the WML document are called the prolog. The prolog defines that this is an XML
document, it then defines the XML version, and the DTD to be referenced.

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