declare-styleable中format的值

参考：http://blog.youkuaiyun.com/mayingcai1987/article/details/6216655

Android中 declare-styleable format属性

1. reference：参考某一资源ID

                   <attr name = "background" format = "reference" />

2. color：颜色值

                   <attr name = "textColor" format = "color" />

3. boolean：布尔值

                   <attr name = "focusable" format = "boolean" />

4. dimension：尺寸值

                   <attr name = "layout_width" format = "dimension" />

5. float：浮点值

                   <attr name = "fromAlpha" format = "float" />

6. integer：整型值

                   <attr name = "framesCount" format="integer" />

7. string：字符串

                   <attr name = "apiKey" format = "string" />

8. fraction：百分数

                   <attr name = "pivotX" format = "fraction" />

9. enum：枚举值

                   <attr name="orientation">
                          <enum name="horizontal" value="0" />
                          <enum name="vertical" value="1" />
                   </attr>            

10. flag：位或运算

                    <attr name="windowSoftInputMode">
                            <flag name = "stateUnspecified" value = "0" />
                            <flag name = "stateUnchanged" value = "1" />
                            <flag name = "stateHidden" value = "2" />
                            <flag name = "stateAlwaysHidden" value = "3" />
                            <flag name = "stateVisible" value = "4" />
                            <flag name = "stateAlwaysVisible" value = "5" />
                            <flag name = "adjustUnspecified" value = "0x00" />
                            <flag name = "adjustResize" value = "0x10" />
                            <flag name = "adjustPan" value = "0x20" />
                            <flag name = "adjustNothing" value = "0x30" />
                     </attr>         

What's More:

  属性定义时可以指定多种类型值。

  <attr name = "background" format = "reference|color" />