error: 在xml中使用自定义view

1首先定义Xml可以设置的属性集合,在values下创建attrs.xml,文件名可随意,一般都叫attrs.xml

 

加入自己的命名空间再通过命名空间调用属性,即xmlns:myViewXmlns=”http://schemas.android.com/apk/res/com.trinea.mypackage”,其中myViewXmlns为空间名可自取,值为http://schemas.android.com/apk/res/加当前应用的包名,即AndroidManifest.xml中manifest节点的package值,如下

<manifest xmlns:android=”http://schemas.android.com/apk/res/android&#8221;
package=”com.trinea.mypackage”

 

 launcher:defaultScreen=”1″

我们可以在\res\values里面的attrs.xml里面定义,具体的定义方法如下:

<resources>

<declare-styleable name=”Workspace”>

<attr name=”defaultScreen” format=”integer”  />

</declare-styleable>

</resources>

引用方法是 先申明xmlns:launcher=”http://schemas.android.com/apk/res/com.junction.launcher”(R.java),这样就可以使用launcher:defaultScreen。

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