Android-库xmlns的ClassNotFoundException

Question

I have a library project that located in :Project/extralibs/ folder.

now I have this view in xml :

  <com.winsontan520.WScratchView
        xmlns:wsv="http://schemas.android.com/apk/res-auto"
        android:id="@+id/scratch_view"
        android:layout_width="300dp"
        android:layout_height="300dp"
        android:layout_centerInParent="true"
        wsv:antiAlias="true"
        wsv:overlayColor="#0000ff"
        wsv:revealSize="20dp"
        wsv:scratchable="true" />

And now I`m getting "No resource identifier found for attribute.." error. I tried to change the path of xmlns to /lib/lib-auto and to the library path but getting ClassNotFoundException after running it.

Answer 1

There's no need to build the external jar. Try removing it from your build path and follow these steps:

1. Create a folder in the root of your Android project called libs.
2. Add the jar to that folder.
3. Right-click the jar and click to add to build path.
4. Clean your project and try it again.