Android自定义属性，attr format取值类型

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：<ImageViewandroid: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：<TextViewandroid: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：<Buttonandroid: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：<Buttonandroid: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-rotatexmlns: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：<rotatexmlns: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：<LinearLayoutxmlns: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：<activityandroid: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：<ImageViewandroid:layout_width = "42dip"
android:layout_height = "42dip"
android:background = "@drawable/图片ID|#00FF00"/>更多Android相关信息见Android 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=11