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Android自定义控件属性详细介绍

程序员文章站 2023-12-01 15:35:16
 android自定义控件属性详细介绍 1. reference:参考某一资源id。      (1)属性定义:...

 android自定义控件属性详细介绍

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"
           />

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