Android中自定義屬性的格式詳解

1. reference：參考某一資源ID。

（1）屬性定義：

<declare-styleable name = "名稱">

<attr name = "background" format = "reference" />

</declare-styleable>

（2）屬性使用：

<ImageView

android:layout_width = "42dip"

android:layout_height = "42dip"

android:background = "@drawable/圖檔ID"

/>

2. color：顔色值。

（1）屬性定義：

<declare-styleable name = "名稱">

<attr name = "textColor" format = "color" />

</declare-styleable>

（2）屬性使用：

<TextView

android:layout_width = "42dip"

android:layout_height = "42dip"

android:textColor = "#00FF00"

/>

3. boolean：布爾值。

（1）屬性定義：

<declare-styleable name = "名稱">

<attr name = "focusable" format = "boolean" />

</declare-styleable>

（2）屬性使用：

<Button

android:layout_width = "42dip"

android:layout_height = "42dip"

android:focusable = "true"

/>

4. dimension：尺寸值。

（1）屬性定義：

<declare-styleable name = "名稱">

<attr name = "layout_width" format = "dimension" />

</declare-styleable>

（2）屬性使用：

<Button

android:layout_width = "42dip"

android:layout_height = "42dip"

/>

5. float：浮點值。

（1）屬性定義：

<declare-styleable name = "AlphaAnimation">

<attr name = "fromAlpha" format = "float" />

<attr name = "toAlpha" format = "float" />

</declare-styleable>

（2）屬性使用：

<alpha

android:fromAlpha = "1.0"

android:toAlpha = "0.7"

/>

6. integer：整型值。

（1）屬性定義：

<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）屬性使用：

<animated-rotate

xmlns:android = "http://schemas.android.com/apk/res/android"

android:drawable = "@drawable/圖檔ID"

android:pivotX = "50%"

android:pivotY = "50%"

android:framesCount = "12"

android:frameDuration = "100"

/>

7. string：字元串。

（1）屬性定義：

<declare-styleable name = "MapView">

<attr name = "apiKey" format = "string" />

</declare-styleable>

（2）屬性使用：

<com.google.android.maps.MapView

android:layout_width = "fill_parent"

android:layout_height = "fill_parent"

android:apiKey = "0jOkQ80oD1JL9C6HAja99uGXCRiS2CGjKO_bc_g"

/>

8. fraction：百分數。

（1）屬性定義：

<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）屬性使用：

<rotate

xmlns:android = "http://schemas.android.com/apk/res/android"

　　 android:interpolator = "@anim/動畫ID"

android:fromDegrees = "0"

　　 android:toDegrees = "360"

android:pivotX = "200%"

android:pivotY = "300%"

　　 android:duration = "5000"

android:repeatMode = "restart"

android:repeatCount = "infinite"

/>

9. enum：枚舉值。

（1）屬性定義：

<declare-styleable name="名稱">

<attr name="orientation">

<enum name="horizontal" value="0" />

<enum name="vertical" value="1" />

</attr>

</declare-styleable>

（2）屬性使用：

<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：位或運算。

（1）屬性定義：

<declare-styleable name="名稱">

<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）屬性使用：

<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：

屬性定義時可以指定多種類型值。

（1）屬性定義：

<declare-styleable name = "名稱">

<attr name = "background" format = "reference|color" />

</declare-styleable>

（2）屬性使用：

<ImageView

android:layout_width = "42dip"

android:layout_height = "42dip"

android:background = "@drawable/圖檔ID|#00FF00"

/>

本文來自CSDN部落格，轉載請标明出處：http://blog.csdn.net/mayingcai1987/archive/2011/03/01/6216655.aspx