Android自定义控件属性详细介绍

2019-12-12 02:56:08

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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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