如何在android中解析XML并将其存储在类中

<layout>

<menu1>
    <title>Oil Painting</title>
    <sectioncount>5</sectioncount>
    <cost>0</cost>
    <appcode>0</appcode>
    <section1.1>
        <title>Oil Painting basics</title>
        <subtitle>9 minutes 57 secs*!How to do Oil Painting</subtitle>
        <video1.1></video1.1>
        <imgvideo>Landscape19.jpg</imgvideo>
        <description>video1.html</description>
    </section1.1>
    <section1.2>
        <title>Advacned Oil Painintg</title>
        <subtitle>6 minutes 23 secs*!Advanced Oil Painting</subtitle>
        <video1.2></video1.2>
        <imgvideo>Landscape19.jpg</imgvideo>
        <description>video1.html</description>
    </section1.2>
    <section1.3>
        <title>Watercolors basic</title>
        <subtitle>9 minutes 51 secs*!How to use watercolors</subtitle>
        <video1.3></video1.3>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section1.3>
    <section1.4>
        <title>Watercolors Advanced</title>
        <subtitle>3 minutes 46 secs*!Advacned training- Watercolors</subtitle>
        <video1.4></video1.4>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section1.4>
    <section1.5>
        <title>Enamel Painting Basic</title>
        <subtitle>1 minute 56 secs*!Advacned training- Watercolors</subtitle>
        <video1.5></video1.5>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section1.5>     
</menu1>

<menu2>
    <title>Graphite Pencil Sketching</title>
    <sectioncount>4</sectioncount>
    <cost>.99</cost>
    <appcode>0</appcode>
    <section2.1>
        <title>Basic Graphite Pencil Sketching</title>
        <subtitle>5 minutes 29 secs*!What you need to know</subtitle>
        <video2.1></video2.1>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section2.1>
    <section2.2>
        <title>Advanced Graphite Pencil Sketching</title>
        <subtitle>3 minutes*!The proffessional way</subtitle>
        <video2.2></video2.2>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section2.2>
    <section2.3>
        <title>Graphite Pencil Tools</title>
        <subtitle>5 minutes*!what should you use</subtitle>
        <video2.3></video2.3>
        <imgvideo>Landscape19.jpg</imgvideo>
        <description>video1.html</description>
    </section2.3>
    <section2.4>
        <title>Do's and Don't of Graphite Pencil Sketching</title>
        <subtitle>5 minutes*Cautions and precautions</subtitle>
        <video2.4></video2.4>
        <imgvideo>Landscape19.jpg</imgvideo>
        <description>video1.html</description>
    </section2.4>
</menu2>

<menu3>
    <title>Pen Sketching</title>
    <sectioncount>3</sectioncount>
    <cost>0</cost>
    <section3.1>
        <title>Basic Pen Sketching</title>
        <subtitle>2 minutes*!what you need to know</subtitle>
        <video3.1></video3.1>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section3.1>
    <section3.2>
        <title>Advanced Pen Sketching</title>
        <subtitle>3 minutes*!proffessional approach</subtitle>
        <video3.2></video3.2>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section3.2>
    <section3.3>
        <title>Pen Sketching Tools</title>
        <subtitle>3 minutes*!which pens to use</subtitle>
        <video3.3></video3.3>
        <imgvideo>fifa.jpg</imgvideo>
        <description>video1.html</description>
    </section3.3>
</menu3>
</layout>
<layout>

<menu1>
    <title>Oil Painting</titl