• 【转载】Android中attr自定义标签详解


    原文链接:http://blog.sina.com.cn/s/blog_62ef2f14010105vi.html;仅对排版进行优化,更方便阅读

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:wen=http://schemas.android.com/apk/res/com.iteye.googlers
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="wrap_content">

    第二行是自定义标签。

    格式如上,其中“xmlns:wen”冒号后面是标签名,在下面使用时(只对当前文件可用)

    <TextView wen:属性名/>

    “com.iteye.googlers”是你的工程包名。

    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>

    tips: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"
    />

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  • 原文地址:https://www.cnblogs.com/kimmy/p/4548330.html
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