Change ripples on Chip to use the alphas provided in the ColorStateList.

RippleDrawable on different API levels will modulate the alphas differently
for the pressed / focused / hovered states. Therefore, in order to get the
desired alphas for pressed / focused / hovered states, we are using the
mtrl_low_ripple_(pressed|focused|hovered|default)_alpha values which have
been defined to account for the different implementations of RippleDrawable.

PiperOrigin-RevId: 254737730

Author: ikim24

lib/java/com/google/android/material/chip/Chip.java

@@ -424,7 +424,7 @@ private void updateFrameworkRippleBackground() {
     //noinspection NewApi
     ripple =
         new RippleDrawable(
-            RippleUtils.convertToRippleDrawableColor(chipDrawable.getRippleColor()),
+            RippleUtils.sanitizeRippleDrawableColor(chipDrawable.getRippleColor()),
             getBackgroundDrawable(),
             null);
     chipDrawable.setUseCompatRipple(false);

lib/java/com/google/android/material/chip/ChipDrawable.java

@@ -1006,7 +1006,7 @@ private boolean onStateChange(int[] chipState, int[] closeIconState) {
     }
 
     int newCompatRippleColor =
-        compatRippleColor != null
+        compatRippleColor != null && RippleUtils.shouldDrawRippleCompat(chipState)
             ? compatRippleColor.getColorForState(chipState, currentCompatRippleColor)
             : 0;
     if (currentCompatRippleColor != newCompatRippleColor) {
@@ -1280,7 +1280,7 @@ private ColorFilter getTintColorFilter() {
 
   private void updateCompatRippleColor() {
     compatRippleColor =
-        useCompatRipple ? RippleUtils.convertToRippleDrawableColor(rippleColor) : null;
+        useCompatRipple ? RippleUtils.sanitizeRippleDrawableColor(rippleColor) : null;
   }
 
   private void setChipSurfaceColor(@Nullable ColorStateList chipSurfaceColor) {
@@ -1795,7 +1795,7 @@ public void setCloseIcon(@Nullable Drawable closeIcon) {
   private void updateFrameworkCloseIconRipple() {
     closeIconRipple =
         new RippleDrawable(
-            RippleUtils.convertToRippleDrawableColor(getRippleColor()),
+            RippleUtils.sanitizeRippleDrawableColor(getRippleColor()),
             closeIcon,
             // A separate drawable with a solid background is needed for the mask because by
             // default, the close icon has a transparent background.

lib/java/com/google/android/material/chip/res/color/mtrl_chip_ripple_color.xml

@@ -17,10 +17,10 @@
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
 
-  <item android:alpha="0.16" android:color="?attr/colorOnSurface" android:state_pressed="true"/>
-  <item android:alpha="0.16" android:color="?attr/colorOnSurface" android:state_focused="true" android:state_hovered="true"/>
-  <item android:alpha="0.12" android:color="?attr/colorOnSurface" android:state_focused="true"/>
-  <item android:alpha="0.04" android:color="?attr/colorOnSurface" android:state_hovered="true"/>
-  <item android:alpha="0.00" android:color="?attr/colorOnSurface"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_pressed_alpha" android:color="?attr/colorOnSurface" android:state_pressed="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_focused_alpha" android:color="?attr/colorOnSurface" android:state_focused="true" android:state_hovered="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_focused_alpha" android:color="?attr/colorOnSurface" android:state_focused="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_hovered_alpha" android:color="?attr/colorOnSurface" android:state_hovered="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_default_alpha" android:color="?attr/colorOnSurface"/>
 
 </selector>

lib/java/com/google/android/material/chip/res/color/mtrl_choice_chip_ripple_color.xml

@@ -17,10 +17,10 @@
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
 
-  <item android:alpha="0.16" android:color="?attr/colorPrimary" android:state_pressed="true"/>
-  <item android:alpha="0.16" android:color="?attr/colorOnSurface" android:state_focused="true" android:state_hovered="true"/>
-  <item android:alpha="0.12" android:color="?attr/colorOnSurface" android:state_focused="true"/>
-  <item android:alpha="0.04" android:color="?attr/colorOnSurface" android:state_hovered="true"/>
-  <item android:alpha="0.00" android:color="?attr/colorOnSurface"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_pressed_alpha" android:color="?attr/colorPrimary" android:state_pressed="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_focused_alpha" android:color="?attr/colorOnSurface" android:state_focused="true" android:state_hovered="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_focused_alpha" android:color="?attr/colorOnSurface" android:state_focused="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_hovered_alpha" android:color="?attr/colorOnSurface" android:state_hovered="true"/>
+  <item android:alpha="@dimen/mtrl_low_ripple_default_alpha" android:color="?attr/colorOnSurface"/>
 
 </selector>