Subclass Button with Android : lots of errors

Question

I tried to subclass Button , but I have a lot of errors when launching my project. Could you have a look and tell me how to fix this? (I\'ve got maybe 50 errors com

Answer 1

rename

<MyButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/myb"
    android:tag="tag"
     />

to a fully qualified Namespace

<namespace.from.button.MyButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/myb"
    android:tag="tag"
     />

Answer 2

Using the fully-qualified name for the element in the XML layout does not work if your Button subclass is an inner class. If this is the case, you need to add a class attribute and use the generic view for the element name.

<view
    class="my.project.name.MyProjectActivity$MyButton"
    ...

http://developer.android.com/guide/topics/ui/custom-components.html