[Android自定义控件]自定义属性attrs.xml中format

前言

在我们自定义控件的时候，需要自己定义布局xml对象属性，就需要styles.xml自定义，然后再自定义java文件中获取信息,记录方便自己使用

使用

xml首先需要自定义命名空间：

xmlns: zkbilian ="/apk/res-auto"

1.reference：参考某一资源ID

属性定义：

<declare-styleable name = "名称"><attr name = "background" format = "reference" /></declare-styleable>

属性使用：

<ImageViewandroid:layout_width = "59dp"android:layout_height = "42dp"zkbilian:background = "@drawable/资源ID"/>

2.color：颜色值

属性定义：

<declare-styleable name = "HavorldAttribute"> <attr name = "textColor" format = "color" /> </declare-styleable>

属性使用：

<TextView android:layout_width = "42dip" android:layout_height= "42dip" havorld:textColor = "#00FF00" />

3.boolean：布尔值

属性定义：

<declare-styleable name = "HavorldAttribute"> <attr name = "focusable" format = "boolean" /> </declare-styleable>

属性使用：

<Button android:layout_width = "42dip" android:layout_height = "42dip" havorld:focusable ="true"/>

4.dimension：尺寸值

属性定义：

<declare-styleable name = "HavorldAttribute"> <attr name = "layout_width" format = "dimension" /> </declare-styleable>

属性使用：

<Button havorld:layout_width ="42dip" havorld:layout_height ="42dip"/>

5. float：浮点值

属性定义：

<declare-styleable name = "HavorldAttribute"> <attr name = "fromAlpha" format = "float" /> <attr name = "toAlpha" format = "float" /> </declare-styleable>

属性使用：

<alpha havorld:fromAlpha ="1.0" havorld:toAlpha ="0.7"/>

6. integer：整型值

属性定义：

<declare-styleable name = "HavorldAttribute"> <attr name = "frameDuration" format="integer" /> <attr name = "framesCount" format="integer" /> </declare-styleable>

属性使用：

<animated-rotate havorld:framesCount ="12" havorld:frameDuration ="100" />

7. string：字符串

属性定义：

<declare-styleable name = " HavorldAttribute "> <attr name = "apiKey" format = "string" /> </declare-styleable>

属性使用：

<com.google.android.maps.MapView android:layout_width = "match_parent" android:layout_height= "match_parent" havorld:apiKey ="0jOkQ80oD1JL9C6HAja99uGXCRiS2CGjKO_bc_g"/>

8.fraction：百分数

属性定义：

<declare-styleable name=" HavorldAttribute "> <attr name = "pivotX" format = "fraction" /> <attr name = "pivotY" format = "fraction" /> </declare-styleable>

属性使用：

<rotate android:interpolator = "@anim/动画ID" havorld:pivotX ="200%" havorld:pivotY ="300%" />

9. enum：枚举值

属性定义：

<declare-styleable name="HavorldAttribute"> <attr name="orientation"> <enum name="horizontal" value="0" /> <enum name="vertical"value="1" /> </attr> </declare-styleable>

属性使用：

<LinearLayout havorld:orientation ="vertical" android:layout_width = "match_parent" android:layout_height = "match_parent"/> </LinearLayout>

10.flag：位或运算

属性定义：

<declare-styleable name="HavorldAttribute"> <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>

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>

PS： 属性定义时可以指定多种类型值 如

属性定义：

<declare-styleable name = "HavorldAttribute"> <attr name = "background" format = "reference|color"/> </declare-styleable>

属性使用：

<ImageView android:layout_width = "42dip" android:layout_height= "42dip" havorld:background ="@drawable/图片ID|#00FF00"/>