[android-developers] custom attributes in library projects

[Vladimir Lebedev-Schmidthof]

Hello,

Having custom attribute (in attrs.xml) in library project leads to
compilation fail of the project dependent of that library.

I.e.:
MyLib project (library)

AndroidManifest.xml:
<manifest xmlns:android="http://schemas.android.com/apk/res/android";
      package="com.mycompany.test.lib"
      android:versionCode="1"
      android:versionName="1.0">
...
</manifest>

res/layout/main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
        xmlns:my="http://schemas.android.com/apk/res/
com.mycompany.test.lib"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<com.mycompany.test.lib.MyWidget
    android:id="@+id/my_widget"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    my:customValue="324"/>
</LinearLayout>

res/values/attrs.xml:
<resources>
        <declare-styleable name="MyWidget">
                <attr name="customValue" format="integer"/>
        </declare-styleable>
</resources>

And there are nothing in TestApp except AndroidManifest.xml:
<manifest xmlns:android="http://schemas.android.com/apk/res/android";
      package="com.mycompany.test.app"
      android:versionCode="1"
      android:versionName="1.0">
...
</manifest>

And aapt says that
res/layout/main.xml:13: error: No resource identifier found for
attribute 'customValue' in package 'com.mycompany.test.lib'

How to avoid this except for no having custom attributes in library?

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