attrs.xml自定义属性学习笔记(自定义View2)
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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:
- <attr name = "apiKey" format = "string" />
- </declare-styleable>
(2)属性使用:
- <com.google.android.maps.MapView
- android:layout_width = "match_parent"
- android:layout_height = "match_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 = "match_parent"
- android:layout_height = "match_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>
- lt;/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>
属性定义时可以指定多种类型值。
(1)属性定义:
(2)属性使用:
(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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