1 files changed, 26 insertions, 1 deletions

diff --git a/core/java/com/android/internal/app/AccessibilityButtonChooserActivity.java b/core/java/com/android/internal/app/AccessibilityButtonChooserActivity.java
index b9ed96395130..7af45fc53ddf 100644
--- a/core/java/com/android/internal/app/AccessibilityButtonChooserActivity.java
+++ b/core/java/com/android/internal/app/AccessibilityButtonChooserActivity.java
@@ -15,6 +15,8 @@
  */
 package com.android.internal.app;
 
+import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_GESTURAL;
+
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
@@ -64,8 +66,21 @@ public class AccessibilityButtonChooserActivity extends Activity {
 
         String component = Settings.Secure.getString(getContentResolver(),
                 Settings.Secure.ACCESSIBILITY_BUTTON_TARGET_COMPONENT);
+
+        if (isGestureNavigateEnabled()) {
+            TextView promptPrologue = findViewById(R.id.accessibility_button_prompt_prologue);
+            promptPrologue.setText(isTouchExploreOn()
+                    ? R.string.accessibility_gesture_3finger_prompt_text
+                    : R.string.accessibility_gesture_prompt_text);
+        }
+
         if (TextUtils.isEmpty(component)) {
             TextView prompt = findViewById(R.id.accessibility_button_prompt);
+            if (isGestureNavigateEnabled()) {
+                prompt.setText(isTouchExploreOn()
+                        ? R.string.accessibility_gesture_3finger_instructional_text
+                        : R.string.accessibility_gesture_instructional_text);
+            }
             prompt.setVisibility(View.VISIBLE);
         }
 
@@ -91,6 +106,16 @@ public class AccessibilityButtonChooserActivity extends Activity {
         });
     }
 
+    private boolean isGestureNavigateEnabled() {
+        return NAV_BAR_MODE_GESTURAL == getResources().getInteger(
+                com.android.internal.R.integer.config_navBarInteractionMode);
+    }
+
+    private boolean isTouchExploreOn() {
+        return ((AccessibilityManager) getSystemService(Context.ACCESSIBILITY_SERVICE))
+                .isTouchExplorationEnabled();
+    }
+
     private static List<AccessibilityButtonTarget> getServiceAccessibilityButtonTargets(
             @NonNull Context context) {
         AccessibilityManager ams = (AccessibilityManager) context.getSystemService(
@@ -177,4 +202,4 @@ public class AccessibilityButtonChooserActivity extends Activity {
             return mDrawable;
         }
     }
-}
\ No newline at end of file
+}