Android自定义属性，attr format取值类型

2017-04-18 本文已影响0人大当弟弟

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" 

              />

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" 

              />

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" 

             />

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" 

             />

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" 

            />

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" 

            />

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" 

             />

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" 

               />

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>

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" 
             />

Android自定义属性，attr format取值类型

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