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Commit dd923325 authored by Alan Viverette's avatar Alan Viverette
Browse files

Allow Views to specify a theme override 

During inflation, any view with a theme attribute will wrap its context
with a theme override. Views inflated using a parent will inherit the
wrapped context.

BUG: 12178430
Change-Id: I3448e5174e94c19960a1e21df5bd6127d0d33c07
parent 23ab74de

core/java/android/view/LayoutInflater.java

+32 −9
Original line number Diff line number Diff line
@@ -91,6 +91,8 @@ public abstract class LayoutInflater { 
    private static final String TAG_1995 = "blink";

    private static final String TAG_REQUEST_FOCUS = "requestFocus";



    private static final String ATTR_THEME = "theme";



    /**

     * Hook to allow clients of the LayoutInflater to restrict the set of Views that are allowed

     * to be inflated.
@@ -677,24 +679,45 @@ public abstract class LayoutInflater { 
            name = attrs.getAttributeValue(null, "class");

        }



        // Apply a theme override, if necessary.

        final Context viewContext;

        final int themeResId = attrs.getAttributeResourceValue(null, ATTR_THEME, 0);

        if (themeResId != 0) {

            viewContext = new ContextThemeWrapper(mContext, themeResId);

        } else if (parent != null) {

            viewContext = parent.getContext();

        } else {

            viewContext = mContext;

        }



        if (DEBUG) System.out.println("******** Creating view: " + name);



        try {

            View view;

            if (mFactory2 != null) view = mFactory2.onCreateView(parent, name, mContext, attrs);

            else if (mFactory != null) view = mFactory.onCreateView(name, mContext, attrs);

            else view = null;

            if (mFactory2 != null) {

                view = mFactory2.onCreateView(parent, name, viewContext, attrs);

            } else if (mFactory != null) {

                view = mFactory.onCreateView(name, viewContext, attrs);

            } else {

                view = null;

            }



            if (view == null && mPrivateFactory != null) {

                view = mPrivateFactory.onCreateView(parent, name, mContext, attrs);

                view = mPrivateFactory.onCreateView(parent, name, viewContext, attrs);

            }



            if (view == null) {

                final Object lastContext = mConstructorArgs[0];

                mConstructorArgs[0] = viewContext;

                try {

                    if (-1 == name.indexOf('.')) {

                        view = onCreateView(parent, name, attrs);

                    } else {

                        view = createView(name, null, attrs);

                    }

                } finally {

                    mConstructorArgs[0] = lastContext;

                }

            }



            if (DEBUG) System.out.println("Created view is: " + view);