[CollapsingToolbarLayout] Added experimental API to allow generic customizations of the StaticLayout.Builder used for the title text

Example usage:

```
collapsingToolbarLayout.setStaticLayoutBuilderConfigurer(
    builder ->
        builder.setLineBreakConfig(
            new LineBreakConfig.Builder()
                .setLineBreakWordStyle(LineBreakConfig.LINE_BREAK_WORD_STYLE_PHRASE)
                .build()));
```

PiperOrigin-RevId: 455625977

Author: dsn5ft

lib/java/com/google/android/material/appbar/CollapsingToolbarLayout.java

@@ -1398,6 +1398,24 @@ public int getHyphenationFrequency() {
     return collapsingTextHelper.getHyphenationFrequency();
   }
 
+  /**
+   * Sets the {@link StaticLayoutBuilderConfigurer} for the {@link android.text.StaticLayout} of the
+   * title text.
+   *
+   * <p>Note that the updates to the {@link android.text.StaticLayout.Builder} in the configure
+   * method (e.g., the text, alignment, max lines, line spacing, etc.) will take precedence over and
+   * overwrite any previous configurations made by the {@link CollapsingToolbarLayout} to the same
+   * properties.
+   *
+   * @hide
+   */
+  @RestrictTo(LIBRARY_GROUP)
+  @RequiresApi(VERSION_CODES.M)
+  public void setStaticLayoutBuilderConfigurer(
+      @Nullable StaticLayoutBuilderConfigurer staticLayoutBuilderConfigurer) {
+    collapsingTextHelper.setStaticLayoutBuilderConfigurer(staticLayoutBuilderConfigurer);
+  }
+
   /**
    * Sets whether {@code TextDirectionHeuristics} should be used to determine whether the title text
    * is RTL. Experimental Feature.
@@ -1732,4 +1750,15 @@ public void onOffsetChanged(AppBarLayout layout, int verticalOffset) {
       collapsingTextHelper.setExpansionFraction(Math.abs(verticalOffset) / (float) expandRange);
     }
   }
+
+  /**
+   * Interface that allows for further customization of the provided {@link
+   * android.text.StaticLayout}.
+   *
+   * @hide
+   */
+  @RestrictTo(LIBRARY_GROUP)
+  @RequiresApi(VERSION_CODES.M)
+  public interface StaticLayoutBuilderConfigurer
+      extends com.google.android.material.internal.StaticLayoutBuilderConfigurer {}
 }

lib/java/com/google/android/material/internal/CollapsingTextHelper.java

@@ -176,6 +176,7 @@ public final class CollapsingTextHelper {
   private float lineSpacingAdd = StaticLayoutBuilderCompat.DEFAULT_LINE_SPACING_ADD;
   private float lineSpacingMultiplier = StaticLayoutBuilderCompat.DEFAULT_LINE_SPACING_MULTIPLIER;
   private int hyphenationFrequency = StaticLayoutBuilderCompat.DEFAULT_HYPHENATION_FREQUENCY;
+  @Nullable private StaticLayoutBuilderConfigurer staticLayoutBuilderConfigurer;
 
   public CollapsingTextHelper(View view) {
     this.view = view;
@@ -1075,6 +1076,7 @@ private StaticLayout createStaticLayout(int maxLines, float availableWidth, bool
               .setMaxLines(maxLines)
               .setLineSpacing(lineSpacingAdd, lineSpacingMultiplier)
               .setHyphenationFrequency(hyphenationFrequency)
+              .setStaticLayoutBuilderConfigurer(staticLayoutBuilderConfigurer)
               .build();
     } catch (StaticLayoutBuilderCompatException e) {
       Log.e(TAG, e.getCause().getMessage(), e);
@@ -1220,6 +1222,15 @@ public int getHyphenationFrequency() {
     return hyphenationFrequency;
   }
 
+  @RequiresApi(VERSION_CODES.M)
+  public void setStaticLayoutBuilderConfigurer(
+      @Nullable StaticLayoutBuilderConfigurer staticLayoutBuilderConfigurer) {
+    if (this.staticLayoutBuilderConfigurer != staticLayoutBuilderConfigurer) {
+      this.staticLayoutBuilderConfigurer = staticLayoutBuilderConfigurer;
+      recalculate(/* forceRecalculate= */ true);
+    }
+  }
+
   /**
    * Returns true if {@code value} is 'close' to it's closest decimal value. Close is currently
    * defined as it's difference being < 0.00001.

lib/java/com/google/android/material/internal/StaticLayoutBuilderCompat.java

@@ -84,6 +84,7 @@ final class StaticLayoutBuilderCompat {
   private boolean includePad;
   private boolean isRtl;
   @Nullable private TextUtils.TruncateAt ellipsize;
+  @Nullable private StaticLayoutBuilderConfigurer staticLayoutBuilderConfigurer;
 
   private StaticLayoutBuilderCompat(CharSequence source, TextPaint paint, int width) {
     this.source = source;
@@ -219,6 +220,17 @@ public StaticLayoutBuilderCompat setEllipsize(@Nullable TextUtils.TruncateAt ell
     return this;
   }
 
+  /**
+   * Set the {@link StaticLayoutBuilderConfigurer} which allows additional custom configurations on
+   * the static layout.
+   */
+  @NonNull
+  public StaticLayoutBuilderCompat setStaticLayoutBuilderConfigurer(
+      @Nullable StaticLayoutBuilderConfigurer staticLayoutBuilderConfigurer) {
+    this.staticLayoutBuilderConfigurer = staticLayoutBuilderConfigurer;
+    return this;
+  }
+
   /** A method that allows to create a StaticLayout with maxLines on all supported API levels. */
   public StaticLayout build() throws StaticLayoutBuilderCompatException {
     if (source == null) {
@@ -259,6 +271,9 @@ public StaticLayout build() throws StaticLayoutBuilderCompatException {
       if (maxLines > 1) {
         builder.setHyphenationFrequency(hyphenationFrequency);
       }
+      if (staticLayoutBuilderConfigurer != null) {
+        staticLayoutBuilderConfigurer.configure(builder);
+      }
       return builder.build();
     }
 

lib/java/com/google/android/material/internal/StaticLayoutBuilderConfigurer.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package com.google.android.material.internal;
+
+import android.text.StaticLayout;
+import androidx.annotation.NonNull;
+import androidx.annotation.RestrictTo;
+import androidx.annotation.RestrictTo.Scope;
+
+/**
+ * Interface that allows for further customization of the provided {@link
+ * android.text.StaticLayout}.
+ *
+ * @hide
+ */
+@RestrictTo(Scope.LIBRARY_GROUP)
+public interface StaticLayoutBuilderConfigurer {
+  void configure(@NonNull StaticLayout.Builder builder);
+}