Android自定义属性，attr format取值类型

1. reference：参考某一资源ID。

   （1）属性定义：

        <declare-styleable name = "名称"> 
   
               <attr name = "background" format = "reference" /> 
   
        </declare-styleable> 
   

   （2）属性使用：

         <ImageView 
   
                 android:layout_width = "42dip" 
                 android:layout_height = "42dip" 
                 android:background = "@drawable/图片ID" 
   
                 /> 
   

2. color：颜色值。

   （1）属性定义：

        <declare-styleable name = "名称"> 
   
               <attr name = "textColor" format = "color" /> 
   
        </declare-styleable> 
   

   （2）属性使用：

        <TextView 
   
                 android:layout_width = "42dip" 
                 android:layout_height = "42dip" 
                 android:textColor = "#00FF00" 
   
                 /> 
   

3. boolean：布尔值。

   （1）属性定义：

        <declare-styleable name = "名称"> 
   
               <attr name = "focusable" format = "boolean" /> 
   
        </declare-styleable> 
   

   （2）属性使用：

        <Button 
   
                android:layout_width = "42dip" 
                android:layout_height = "42dip" 
   
                android:focusable = "true" 
   
                /> 
   

4. dimension：尺寸值。

   （1）属性定义：

        <declare-styleable name = "名称"> 
   
               <attr name = "layout_width" format = "dimension" /> 
   
        </declare-styleable> 
   

   （2）属性使用：

        <Button 
   
                android:layout_width = "42dip" 
                android:layout_height = "42dip" 
   
                /> 
   

5. float：浮点值。

   （1）属性定义：

        <declare-styleable name = "AlphaAnimation"> 
   
               <attr name = "fromAlpha" format = "float" /> 
               <attr name = "toAlpha" format = "float" /> 
   
        </declare-styleable> 
   

   （2）属性使用：

        <alpha 
               android:fromAlpha = "1.0" 
               android:toAlpha = "0.7" 
   
               /> 
   

6. integer：整型值。

   （1）属性定义：

        <declare-styleable name = "AnimatedRotateDrawable"> 
   
               <attr name = "visible" /> 
               <attr name = "frameDuration" format="integer" /> 
               <attr name = "framesCount" format="integer" /> 
               <attr name = "pivotX" /> 
               <attr name = "pivotY" /> 
               <attr name = "drawable" /> 
   
        </declare-styleable> 
   

   （2）属性使用：

        <animated-rotate 
   
               xmlns:android = "http://schemas.android.com/apk/res/android" 
               android:drawable = "@drawable/图片ID" 
               android:pivotX = "50%" 
               android:pivotY = "50%" 
               android:framesCount = "12" 
               android:frameDuration = "100" 
   
               /> 
   

7. string：字符串。

   （1）属性定义：

        <declare-styleable name = "MapView"> 
               <attr name = "apiKey" format = "string" /> 
        </declare-styleable> 
   

   （2）属性使用：

        <com.google.android.maps.MapView 
                android:layout_width = "fill_parent" 
                android:layout_height = "fill_parent" 
                android:apiKey = "0jOkQ80oD1JL9C6HAja99uGXCRiS2CGjKO_bc_g" 
   
                /> 
   

8. fraction：百分数。

   （1）属性定义：

        <declare-styleable name="RotateDrawable"> 
               <attr name = "visible" /> 
               <attr name = "fromDegrees" format = "float" /> 
               <attr name = "toDegrees" format = "float" /> 
               <attr name = "pivotX" format = "fraction" /> 
               <attr name = "pivotY" format = "fraction" /> 
               <attr name = "drawable" /> 
        </declare-styleable> 
   

   （2）属性使用：

        <rotate 
   
               xmlns:android = "http://schemas.android.com/apk/res/android" 
   

android:interpolator = "@anim/动画ID"

               android:fromDegrees = "0" 

android:toDegrees = "360"

               android:pivotX = "200%" 

               android:pivotY = "300%" 

android:duration = "5000"

               android:repeatMode = "restart" 

               android:repeatCount = "infinite" 

               /> 

9. enum：枚举值。

   （1）属性定义：

        <declare-styleable name="名称"> 
               <attr name="orientation"> 
                      <enum name="horizontal" value="0" /> 
                      <enum name="vertical" value="1" /> 
               </attr>            
   
        </declare-styleable> 
   

   （2）属性使用：

        <LinearLayout 
   
                xmlns:android = "http://schemas.android.com/apk/res/android" 
                android:orientation = "vertical" 
                android:layout_width = "fill_parent" 
                android:layout_height = "fill_parent" 
                > 
        </LinearLayout> 
   

10. flag：位或运算。

    （1）属性定义：

         <declare-styleable name="名称"> 
                <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>         
    
         </declare-styleable> 
    

    （2）属性使用：

        <activity 
    
               android:name = ".StyleAndThemeActivity" 
               android:label = "@string/app_name" 
               android:windowSoftInputMode = "stateUnspecified | stateUnchanged　|　stateHidden"> 
               <intent-filter> 
                      <action android:name = "android.intent.action.MAIN" /> 
                      <category android:name = "android.intent.category.LAUNCHER" /> 
               </intent-filter> 
         </activity> 
    

    注意：

    属性定义时可以指定多种类型值。

    （1）属性定义：

        <declare-styleable name = "名称"> 
    
               <attr name = "background" format = "reference|color" /> 
    
        </declare-styleable> 
    

    （2）属性使用：

         <ImageView 
                 android:layout_width = "42dip" 
                 android:layout_height = "42dip" 
                 android:background = "@drawable/图片ID|#00FF00" 
                 />