Spinner Component

In this chapter，I'll introduce Spinner Component。There are two kinds of methods to achieve it,following, I'll introduce these two usual methods one by one.

First:  obtain spinner values from resource file

this is resource file:

<resources>
    <string-array name="city_lab">
        <item name="北京">北京</item>
        <item name="深圳">深圳</item>
        <item name="成都">成都</item>
    </string-array>
    
    <string-array name="food_lab">
        <item name="平菇">平菇</item>
        <item name="土豆">土豆</item>
        <item name="西紅柿">西紅柿</item>
    </string-array>
</resources>

then add attribute android:entries="@array/city_lab"  in Spinner

Second: use ArrayAdapter

Instantiation ArrayAdapter by it's contructor :ArrayAdapter(Context context, int resource, List<T> objects)

And  use the object of ArrayAdapter to call it's method called setDropDownViewResource for  displayedeffects.

this is the link of sourcode :http://pan.baidu.com/s/1tb9MO