[MaterialButton] Updated the shapes of buttons when the orientation is changed.

Resolves #4809 PiperOrigin-RevId: 772043388 (cherry picked from commit bbd942c)

Author: pekingme

lib/java/com/google/android/material/button/MaterialButtonGroup.java

@@ -131,7 +131,7 @@ public class MaterialButtonGroup extends LinearLayout {
  @Px private int spacing;
  @Nullable private StateListSizeChange buttonSizeChange;
 
- private boolean isChildrenShapeInvalidated = true;
+ private boolean childShapesDirty = true;
 
  public MaterialButtonGroup(@NonNull Context context) {
  this(context, null);
@@ -209,7 +209,7 @@ public void addView(@NonNull View child, int index, @Nullable ViewGroup.LayoutPa
  // Recover the original layout params of all children before adding the new child.
  recoverAllChildrenLayoutParams();
 
- isChildrenShapeInvalidated = true;
+ childShapesDirty = true;
  super.addView(child, index, params);
  MaterialButton buttonChild = (MaterialButton) child;
  setGeneratedIdIfNeeded(buttonChild);
@@ -237,7 +237,7 @@ public void onViewRemoved(View child) {
  originalChildStateListShapeAppearanceModels.remove(indexOfChild);
  }
 
- isChildrenShapeInvalidated = true;
+ childShapesDirty = true;
  updateChildShapes();
 
  // Recover the original layout params of all children before updating the child layout.
@@ -274,11 +274,10 @@ protected void onLayout(boolean changed, int l, int t, int r, int b) {
  @VisibleForTesting
  void updateChildShapes() {
  // No need to update shape if no inside corners or outer corners are specified.
- if ((innerCornerSize == null && groupStateListShapeAppearance == null)
- || !isChildrenShapeInvalidated) {
+ if ((innerCornerSize == null && groupStateListShapeAppearance == null) || !childShapesDirty) {
  return;
  }
- isChildrenShapeInvalidated = false;
+ childShapesDirty = false;
  int childCount = getChildCount();
  int firstVisibleChildIndex = getFirstVisibleChildIndex();
  int lastVisibleChildIndex = getLastVisibleChildIndex();
@@ -547,6 +546,14 @@ private int getButtonAllowedWidthIncrease(int index) {
 
  // ================ Getters and setters ===================
 
+ @Override
+ public void setOrientation(int orientation) {
+ if (getOrientation() != orientation) {
+ childShapesDirty = true;
+ }
+ super.setOrientation(orientation);
+ }
+
  /**
  * Returns the {@link StateListSizeChange} of child buttons on state changes.
  *
@@ -608,7 +615,7 @@ public CornerSize getInnerCornerSize() {
  */
  public void setInnerCornerSize(@NonNull CornerSize cornerSize) {
  innerCornerSize = StateListCornerSize.create(cornerSize);
- isChildrenShapeInvalidated = true;
+ childShapesDirty = true;
  updateChildShapes();
  invalidate();
  }
@@ -637,7 +644,7 @@ public StateListCornerSize getInnerCornerSizeStateList() {
  @RestrictTo(Scope.LIBRARY_GROUP)
  public void setInnerCornerSizeStateList(@NonNull StateListCornerSize cornerSizeStateList) {
  innerCornerSize = cornerSizeStateList;
- isChildrenShapeInvalidated = true;
+ childShapesDirty = true;
  updateChildShapes();
  invalidate();
  }
@@ -658,7 +665,7 @@ public ShapeAppearanceModel getShapeAppearance() {
  public void setShapeAppearance(@Nullable ShapeAppearanceModel shapeAppearance) {
  groupStateListShapeAppearance =
  new StateListShapeAppearanceModel.Builder(shapeAppearance).build();
- isChildrenShapeInvalidated = true;
+ childShapesDirty = true;
  updateChildShapes();
  invalidate();
  }
@@ -684,7 +691,7 @@ public StateListShapeAppearanceModel getStateListShapeAppearance() {
  public void setStateListShapeAppearance(
  @Nullable StateListShapeAppearanceModel stateListShapeAppearance) {
  groupStateListShapeAppearance = stateListShapeAppearance;
- isChildrenShapeInvalidated = true;
+ childShapesDirty = true;
  updateChildShapes();
  invalidate();
  }