Add edge effect type accessors for views that support it

Bug: 171228096
The edge effect type attribute is supported in
ScrollView, HorizontalScrollView, and ListView, so
those views must provide accessor methods for the
edge effect type. This CL adds them.

Test: I5684df2a21cfeaefeac01290f7681e5c5beebd7c
Change-Id: I93db702995401bf890217e8001cfe0664ac51c81

4 files changed, 69 insertions, 0 deletions

diff --git a/core/api/current.txt b/core/api/current.txt
index dddca3e58b0d..ca2104d047eb 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -53310,6 +53310,7 @@ package android.widget {
     method public int getCheckedItemPosition();
     method public android.util.SparseBooleanArray getCheckedItemPositions();
     method public int getChoiceMode();
+    method public int getEdgeEffectType();
     method public int getListPaddingBottom();
     method public int getListPaddingLeft();
     method public int getListPaddingRight();
@@ -53351,6 +53352,7 @@ package android.widget {
     method public void setChoiceMode(int);
     method public void setDrawSelectorOnTop(boolean);
     method public void setEdgeEffectColor(@ColorInt int);
+    method public void setEdgeEffectType(int);
     method public void setFastScrollAlwaysVisible(boolean);
     method public void setFastScrollEnabled(boolean);
     method public void setFastScrollStyle(int);
@@ -54343,6 +54345,7 @@ package android.widget {
     method public boolean executeKeyEvent(android.view.KeyEvent);
     method public void fling(int);
     method public boolean fullScroll(int);
+    method public int getEdgeEffectType();
     method @ColorInt public int getLeftEdgeEffectColor();
     method public int getMaxScrollAmount();
     method @ColorInt public int getRightEdgeEffectColor();
@@ -54350,6 +54353,7 @@ package android.widget {
     method public boolean isSmoothScrollingEnabled();
     method public boolean pageScroll(int);
     method public void setEdgeEffectColor(@ColorInt int);
+    method public void setEdgeEffectType(int);
     method public void setFillViewport(boolean);
     method public void setLeftEdgeEffectColor(@ColorInt int);
     method public void setRightEdgeEffectColor(@ColorInt int);
@@ -55190,6 +55194,7 @@ package android.widget {
     method public void fling(int);
     method public boolean fullScroll(int);
     method @ColorInt public int getBottomEdgeEffectColor();
+    method public int getEdgeEffectType();
     method public int getMaxScrollAmount();
     method @ColorInt public int getTopEdgeEffectColor();
     method public boolean isFillViewport();
@@ -55198,6 +55203,7 @@ package android.widget {
     method public void scrollToDescendant(@NonNull android.view.View);
     method public void setBottomEdgeEffectColor(@ColorInt int);
     method public void setEdgeEffectColor(@ColorInt int);
+    method public void setEdgeEffectType(int);
     method public void setFillViewport(boolean);
     method public void setSmoothScrollingEnabled(boolean);
     method public void setTopEdgeEffectColor(@ColorInt int);
diff --git a/core/java/android/widget/AbsListView.java b/core/java/android/widget/AbsListView.java
index 05b177ebbb45..39c09b46f2e1 100644
--- a/core/java/android/widget/AbsListView.java
+++ b/core/java/android/widget/AbsListView.java
@@ -6612,6 +6612,27 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
     }
 
     /**
+     * Returns the {@link EdgeEffect#getType()} for the edge effects.
+     * @return the {@link EdgeEffect#getType()} for the edge effects.
+     * @attr ref android.R.styleable#EdgeEffect_edgeEffectType
+     */
+    @EdgeEffect.EdgeEffectType
+    public int getEdgeEffectType() {
+        return mEdgeGlowTop.getType();
+    }
+
+    /**
+     * Sets the {@link EdgeEffect#setType(int)} for the edge effects.
+     * @param type The edge effect type to use for the edge effects.
+     * @attr ref android.R.styleable#EdgeEffect_edgeEffectType
+     */
+    public void setEdgeEffectType(@EdgeEffect.EdgeEffectType int type) {
+        mEdgeGlowTop.setType(type);
+        mEdgeGlowBottom.setType(type);
+        invalidate();
+    }
+
+    /**
      * Sets the recycler listener to be notified whenever a View is set aside in
      * the recycler for later reuse. This listener can be used to free resources
      * associated to the View.
diff --git a/core/java/android/widget/HorizontalScrollView.java b/core/java/android/widget/HorizontalScrollView.java
index 6dedd12a2730..23915e06335a 100644
--- a/core/java/android/widget/HorizontalScrollView.java
+++ b/core/java/android/widget/HorizontalScrollView.java
@@ -303,6 +303,27 @@ public class HorizontalScrollView extends FrameLayout {
     }
 
     /**
+     * Returns the {@link EdgeEffect#getType()} for the edge effects.
+     * @return the {@link EdgeEffect#getType()} for the edge effects.
+     * @attr ref android.R.styleable#EdgeEffect_edgeEffectType
+     */
+    @EdgeEffect.EdgeEffectType
+    public int getEdgeEffectType() {
+        return mEdgeGlowLeft.getType();
+    }
+
+    /**
+     * Sets the {@link EdgeEffect#setType(int)} for the edge effects.
+     * @param type The edge effect type to use for the edge effects.
+     * @attr ref android.R.styleable#EdgeEffect_edgeEffectType
+     */
+    public void setEdgeEffectType(@EdgeEffect.EdgeEffectType int type) {
+        mEdgeGlowRight.setType(type);
+        mEdgeGlowLeft.setType(type);
+        invalidate();
+    }
+
+    /**
      * @return The maximum amount this scroll view will scroll in response to
      *   an arrow event.
      */
diff --git a/core/java/android/widget/ScrollView.java b/core/java/android/widget/ScrollView.java
index 64d09de49f2d..65f3da79afe0 100644
--- a/core/java/android/widget/ScrollView.java
+++ b/core/java/android/widget/ScrollView.java
@@ -335,6 +335,27 @@ public class ScrollView extends FrameLayout {
     }
 
     /**
+     * Returns the {@link EdgeEffect#getType()} for the edge effects.
+     * @return the {@link EdgeEffect#getType()} for the edge effects.
+     * @attr ref android.R.styleable#EdgeEffect_edgeEffectType
+     */
+    @EdgeEffect.EdgeEffectType
+    public int getEdgeEffectType() {
+        return mEdgeGlowTop.getType();
+    }
+
+    /**
+     * Sets the {@link EdgeEffect#setType(int)} for the edge effects.
+     * @param type The edge effect type to use for the edge effects.
+     * @attr ref android.R.styleable#EdgeEffect_edgeEffectType
+     */
+    public void setEdgeEffectType(@EdgeEffect.EdgeEffectType int type) {
+        mEdgeGlowTop.setType(type);
+        mEdgeGlowBottom.setType(type);
+        invalidate();
+    }
+
+    /**
      * @return The maximum amount this scroll view will scroll in response to
      *   an arrow event.
      */