View (二) 自定义属性 自定义属性的格式详解
自定义属性格式一共有十种;
1. reference:参考某一资源ID。
2. color:颜色值。
3. boolean:布尔值。
4. dimension:尺寸值。
5. float:浮点值。
6. integer:整型值。
7. string:字符串。
8. fraction:百分数。
9. enum:枚举值。
10. flag:位或运算。
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" />
作者: 一点点征服
出处:http://www.cnblogs.com/ldq2016/
本文版权归作者所有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文链接,否则保留追究法律责任的权利