Android自定义控件属性详细介绍

发布时间：2020-10-12 22:06:38 作者：lqh
来源：脚本之家阅读：153

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"
           />

感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！

Android自定义控件属性详细介绍

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