diff --git a/api/current.txt b/api/current.txt
index afd93c363e604..d00e099281de4 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -11359,6 +11359,7 @@ package android.content.pm {
     field public static final int CONFIG_COLOR_MODE = 16384; // 0x4000
     field public static final int CONFIG_DENSITY = 4096; // 0x1000
     field public static final int CONFIG_FONT_SCALE = 1073741824; // 0x40000000
+    field public static final int CONFIG_FORCE_BOLD_TEXT = 268435456; // 0x10000000
     field public static final int CONFIG_KEYBOARD = 16; // 0x10
     field public static final int CONFIG_KEYBOARD_HIDDEN = 32; // 0x20
     field public static final int CONFIG_LAYOUT_DIRECTION = 8192; // 0x2000
@@ -12679,6 +12680,9 @@ package android.content.res {
     field public static final int COLOR_MODE_WIDE_COLOR_GAMUT_YES = 2; // 0x2
     field @NonNull public static final android.os.Parcelable.Creator<android.content.res.Configuration> CREATOR;
     field public static final int DENSITY_DPI_UNDEFINED = 0; // 0x0
+    field public static final int FORCE_BOLD_TEXT_NO = 1; // 0x1
+    field public static final int FORCE_BOLD_TEXT_UNDEFINED = 0; // 0x0
+    field public static final int FORCE_BOLD_TEXT_YES = 2; // 0x2
     field public static final int HARDKEYBOARDHIDDEN_NO = 1; // 0x1
     field public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; // 0x0
     field public static final int HARDKEYBOARDHIDDEN_YES = 2; // 0x2
@@ -12745,6 +12749,7 @@ package android.content.res {
     field public int colorMode;
     field public int densityDpi;
     field public float fontScale;
+    field public int forceBoldText;
     field public int hardKeyboardHidden;
     field public int keyboard;
     field public int keyboardHidden;
diff --git a/core/java/android/content/pm/ActivityInfo.java b/core/java/android/content/pm/ActivityInfo.java
index 31c77eeb54249..c2beab507da06 100644
--- a/core/java/android/content/pm/ActivityInfo.java
+++ b/core/java/android/content/pm/ActivityInfo.java
@@ -831,6 +831,16 @@ public class ActivityInfo extends ComponentInfo implements Parcelable {
      */
     public static final int CONFIG_WINDOW_CONFIGURATION = 0x20000000;
 
+    /**
+     * Bit in {@link #configChanges} that indicates that the activity
+     * can itself handle changes to bold text.  Set from the
+     * {@link android.R.attr#configChanges} attribute.  This is
+     * not a core resource configuration, but a higher-level value, so its
+     * constant starts at the high bits.
+     */
+
+    public static final int CONFIG_FORCE_BOLD_TEXT = 0x10000000;
+
     /** @hide
      * Unfortunately the constants for config changes in native code are
      * different from ActivityInfo. :(  Here are the values we should use for the
diff --git a/core/java/android/content/res/Configuration.java b/core/java/android/content/res/Configuration.java
index 6407f9b3c1b86..49f81f83c39a5 100644
--- a/core/java/android/content/res/Configuration.java
+++ b/core/java/android/content/res/Configuration.java
@@ -19,6 +19,7 @@ package android.content.res;
 import static android.content.ConfigurationProto.COLOR_MODE;
 import static android.content.ConfigurationProto.DENSITY_DPI;
 import static android.content.ConfigurationProto.FONT_SCALE;
+import static android.content.ConfigurationProto.FORCE_BOLD_TEXT;
 import static android.content.ConfigurationProto.HARD_KEYBOARD_HIDDEN;
 import static android.content.ConfigurationProto.KEYBOARD;
 import static android.content.ConfigurationProto.KEYBOARD_HIDDEN;
@@ -331,6 +332,26 @@ public final class Configuration implements Parcelable, Comparable<Configuration
      */
     public int screenLayout;
 
+    /**
+     * An undefined forceBoldText.
+     */
+    public static final int FORCE_BOLD_TEXT_UNDEFINED = 0;
+
+    /**
+     * Text is not bold.
+     */
+    public static final int FORCE_BOLD_TEXT_NO = 1;
+
+    /**
+     * Text is bold.
+     */
+    public static final int FORCE_BOLD_TEXT_YES = 2;
+
+    /**
+     * Current user preference for displaying all text in bold.
+     */
+    public int forceBoldText;
+
     /**
      * Configuration relating to the windowing state of the object associated with this
      * Configuration. Contents of this field are not intended to affect resources, but need to be
@@ -467,6 +488,9 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         if ((diff & ActivityInfo.CONFIG_WINDOW_CONFIGURATION) != 0) {
             list.add("CONFIG_WINDOW_CONFIGURATION");
         }
+        if ((diff & ActivityInfo.CONFIG_FORCE_BOLD_TEXT) != 0) {
+            list.add("CONFIG_AUTO_BOLD_TEXT");
+        }
         StringBuilder builder = new StringBuilder("{");
         for (int i = 0, n = list.size(); i < n; i++) {
             builder.append(list.get(i));
@@ -957,6 +981,7 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         assetsSeq = o.assetsSeq;
         seq = o.seq;
         windowConfiguration.setTo(o.windowConfiguration);
+        forceBoldText = o.forceBoldText;
     }
 
     public String toString() {
@@ -1112,6 +1137,12 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         if (seq != 0) {
             sb.append(" s.").append(seq);
         }
+        if (forceBoldText != FORCE_BOLD_TEXT_UNDEFINED) {
+            sb.append(" boldText=");
+            sb.append(forceBoldText);
+        } else {
+            sb.append(" ?boldText");
+        }
         sb.append('}');
         return sb.toString();
     }
@@ -1152,6 +1183,7 @@ public final class Configuration implements Parcelable, Comparable<Configuration
             if (!persisted && windowConfiguration != null) {
                 windowConfiguration.dumpDebug(protoOutputStream, WINDOW_CONFIGURATION);
             }
+            protoOutputStream.write(FORCE_BOLD_TEXT, forceBoldText);
         }
         protoOutputStream.write(ORIENTATION, orientation);
         protoOutputStream.write(SCREEN_WIDTH_DP, screenWidthDp);
@@ -1315,6 +1347,9 @@ public final class Configuration implements Parcelable, Comparable<Configuration
                             Slog.e(TAG, "error parsing locale list in configuration.", e);
                         }
                         break;
+                    case (int) FORCE_BOLD_TEXT:
+                        forceBoldText = protoInputStream.readInt(FORCE_BOLD_TEXT);
+                        break;
                 }
             }
         } finally {
@@ -1410,6 +1445,7 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         assetsSeq = ASSETS_SEQ_UNDEFINED;
         seq = 0;
         windowConfiguration.setToDefaults();
+        forceBoldText = FORCE_BOLD_TEXT_UNDEFINED;
     }
 
     /**
@@ -1607,6 +1643,12 @@ public final class Configuration implements Parcelable, Comparable<Configuration
             changed |= ActivityInfo.CONFIG_WINDOW_CONFIGURATION;
         }
 
+        if (delta.forceBoldText != FORCE_BOLD_TEXT_UNDEFINED
+                && delta.forceBoldText != forceBoldText) {
+            changed |= ActivityInfo.CONFIG_FORCE_BOLD_TEXT;
+            forceBoldText = delta.forceBoldText;
+        }
+
         return changed;
     }
 
@@ -1685,6 +1727,9 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         if ((mask & ActivityInfo.CONFIG_WINDOW_CONFIGURATION) != 0) {
             windowConfiguration.setTo(delta.windowConfiguration, windowMask);
         }
+        if ((mask & ActivityInfo.CONFIG_FORCE_BOLD_TEXT) != 0) {
+            forceBoldText = delta.forceBoldText;
+        }
     }
 
     /**
@@ -1717,6 +1762,8 @@ public final class Configuration implements Parcelable, Comparable<Configuration
      * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}.
      * {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION
      * PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}.
+     * {@link android.content.pm.ActivityInfo#CONFIG_FORCE_BOLD_TEXT
+     *  PackageManager.ActivityInfo.CONFIG_FORCE_BOLD_TEXT.
      */
     public int diff(Configuration delta) {
         return diff(delta, false /* compareUndefined */, false /* publicOnly */);
@@ -1840,6 +1887,10 @@ public final class Configuration implements Parcelable, Comparable<Configuration
             changed |= ActivityInfo.CONFIG_WINDOW_CONFIGURATION;
         }
 
+        if ((compareUndefined || delta.forceBoldText != FORCE_BOLD_TEXT_UNDEFINED)
+                && forceBoldText != delta.forceBoldText) {
+            changed |= ActivityInfo.CONFIG_FORCE_BOLD_TEXT;
+        }
         return changed;
     }
 
@@ -1933,6 +1984,7 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         dest.writeValue(windowConfiguration);
         dest.writeInt(assetsSeq);
         dest.writeInt(seq);
+        dest.writeInt(forceBoldText);
     }
 
     public void readFromParcel(Parcel source) {
@@ -1964,6 +2016,7 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         windowConfiguration.setTo((WindowConfiguration) source.readValue(null));
         assetsSeq = source.readInt();
         seq = source.readInt();
+        forceBoldText = source.readInt();
     }
 
     public static final @android.annotation.NonNull Parcelable.Creator<Configuration> CREATOR
@@ -2062,6 +2115,8 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         if (n != 0) return n;
         n = windowConfiguration.compareTo(that.windowConfiguration);
         if (n != 0) return n;
+        n = this.forceBoldText - that.forceBoldText;
+        if (n != 0) return n;
 
         // if (n != 0) return n;
         return n;
@@ -2102,6 +2157,7 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         result = 31 * result + smallestScreenWidthDp;
         result = 31 * result + densityDpi;
         result = 31 * result + assetsSeq;
+        result = 31 * result + forceBoldText;
         return result;
     }
 
@@ -2674,6 +2730,10 @@ public final class Configuration implements Parcelable, Comparable<Configuration
         if (!base.windowConfiguration.equals(change.windowConfiguration)) {
             delta.windowConfiguration.setTo(change.windowConfiguration);
         }
+
+        if (base.forceBoldText != change.forceBoldText) {
+            delta.forceBoldText = change.forceBoldText;
+        }
         return delta;
     }
 
@@ -2697,6 +2757,7 @@ public final class Configuration implements Parcelable, Comparable<Configuration
     private static final String XML_ATTR_SMALLEST_WIDTH = "sw";
     private static final String XML_ATTR_DENSITY = "density";
     private static final String XML_ATTR_APP_BOUNDS = "app_bounds";
+    private static final String XML_ATTR_FORCE_BOLD_TEXT = "forceBoldText";
 
     /**
      * Reads the attributes corresponding to Configuration member fields from the Xml parser.
@@ -2746,6 +2807,8 @@ public final class Configuration implements Parcelable, Comparable<Configuration
                         SMALLEST_SCREEN_WIDTH_DP_UNDEFINED);
         configOut.densityDpi = XmlUtils.readIntAttribute(parser, XML_ATTR_DENSITY,
                 DENSITY_DPI_UNDEFINED);
+        configOut.forceBoldText = XmlUtils.readIntAttribute(parser, XML_ATTR_FORCE_BOLD_TEXT,
+                FORCE_BOLD_TEXT_UNDEFINED);
 
         // For persistence, we don't care about assetsSeq and WindowConfiguration, so do not read it
         // out.
diff --git a/core/proto/android/content/configuration.proto b/core/proto/android/content/configuration.proto
index 7fa0ff64f8bfb..d578414eb1776 100644
--- a/core/proto/android/content/configuration.proto
+++ b/core/proto/android/content/configuration.proto
@@ -49,6 +49,7 @@ message ConfigurationProto {
     optional uint32 density_dpi = 18;
     optional .android.app.WindowConfigurationProto window_configuration = 19;
     optional string locale_list = 20;
+    optional uint32 force_bold_text = 21;
 }
 
 /**
diff --git a/core/res/res/values/attrs_manifest.xml b/core/res/res/values/attrs_manifest.xml
index 050c1c4b4df5e..e58faf28926d4 100644
--- a/core/res/res/values/attrs_manifest.xml
+++ b/core/res/res/values/attrs_manifest.xml
@@ -994,6 +994,8 @@
         <!-- The font scaling factor has changed, that is the user has
              selected a new global font size. -->
         <flag name="fontScale" value="0x40000000" />
+        <!-- The user has enabled or disabled displaying all text in bold -->
+        <flag name="forceBoldText" value="0x10000000" />
     </attr>
 
     <!-- Indicate that the activity can be launched as the embedded child of another
diff --git a/non-updatable-api/current.txt b/non-updatable-api/current.txt
index 4dd3f008f97a6..6fcbb3a68a567 100644
--- a/non-updatable-api/current.txt
+++ b/non-updatable-api/current.txt
@@ -11359,6 +11359,7 @@ package android.content.pm {
     field public static final int CONFIG_COLOR_MODE = 16384; // 0x4000
     field public static final int CONFIG_DENSITY = 4096; // 0x1000
     field public static final int CONFIG_FONT_SCALE = 1073741824; // 0x40000000
+    field public static final int CONFIG_FORCE_BOLD_TEXT = 268435456; // 0x10000000
     field public static final int CONFIG_KEYBOARD = 16; // 0x10
     field public static final int CONFIG_KEYBOARD_HIDDEN = 32; // 0x20
     field public static final int CONFIG_LAYOUT_DIRECTION = 8192; // 0x2000
@@ -12679,6 +12680,9 @@ package android.content.res {
     field public static final int COLOR_MODE_WIDE_COLOR_GAMUT_YES = 2; // 0x2
     field @NonNull public static final android.os.Parcelable.Creator<android.content.res.Configuration> CREATOR;
     field public static final int DENSITY_DPI_UNDEFINED = 0; // 0x0
+    field public static final int FORCE_BOLD_TEXT_NO = 1; // 0x1
+    field public static final int FORCE_BOLD_TEXT_UNDEFINED = 0; // 0x0
+    field public static final int FORCE_BOLD_TEXT_YES = 2; // 0x2
     field public static final int HARDKEYBOARDHIDDEN_NO = 1; // 0x1
     field public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; // 0x0
     field public static final int HARDKEYBOARDHIDDEN_YES = 2; // 0x2
@@ -12745,6 +12749,7 @@ package android.content.res {
     field public int colorMode;
     field public int densityDpi;
     field public float fontScale;
+    field public int forceBoldText;
     field public int hardKeyboardHidden;
     field public int keyboard;
     field public int keyboardHidden;