Add suwFooter attribute to GlifLayout

Add the suwFooter attribute so custom footer layouts can be easily
added, in conjunction with <aapt:attr> tag.

Test: ./gradlew connectedAndroidTest test
Bug: 36009807
Change-Id: Id7d937486451e34bdc30775a0f5f3dfcde47598f

1 files changed, 19 insertions, 0 deletions

diff --git a/library/main/src/com/android/setupwizardlib/GlifLayout.java b/library/main/src/com/android/setupwizardlib/GlifLayout.java
index 037a148..667d699 100644
--- a/library/main/src/com/android/setupwizardlib/GlifLayout.java
+++ b/library/main/src/com/android/setupwizardlib/GlifLayout.java
@@ -31,6 +31,7 @@ import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ViewStub;
 import android.widget.ProgressBar;
 import android.widget.ScrollView;
 import android.widget.TextView;
@@ -123,6 +124,11 @@ public class GlifLayout extends TemplateLayout {
                 a.getBoolean(R.styleable.SuwGlifLayout_suwBackgroundPatterned, true);
         setBackgroundPatterned(backgroundPatterned);
 
+        final int footer = a.getResourceId(R.styleable.SuwGlifLayout_suwFooter, 0);
+        if (footer != 0) {
+            inflateFooter(footer);
+        }
+
         a.recycle();
     }
 
@@ -142,6 +148,19 @@ public class GlifLayout extends TemplateLayout {
         return super.findContainer(containerId);
     }
 
+    /**
+     * Sets the footer of the layout, which is at the bottom of the content area outside the
+     * scrolling container. The footer can only be inflated once per layout.
+     *
+     * @param footer The layout to be inflated as footer.
+     * @return The root of the inflated footer view.
+     */
+    public View inflateFooter(@LayoutRes int footer) {
+        ViewStub footerStub = (ViewStub) findManagedViewById(R.id.suw_layout_footer);
+        footerStub.setLayoutResource(footer);
+        return footerStub.inflate();
+    }
+
     public ScrollView getScrollView() {
         final View view = findManagedViewById(R.id.suw_scroll_view);
         return view instanceof ScrollView ? (ScrollView) view : null;