diff --git a/src/com/android/settings/accessibility/MagnificationGesturesPreferenceController.java b/src/com/android/settings/accessibility/MagnificationGesturesPreferenceController.java
index 793ab5a8581..99e0dc035e8 100644
--- a/src/com/android/settings/accessibility/MagnificationGesturesPreferenceController.java
+++ b/src/com/android/settings/accessibility/MagnificationGesturesPreferenceController.java
@@ -14,7 +14,6 @@
 package com.android.settings.accessibility;
 
 import android.content.Context;
-import android.icu.text.MessageFormat;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.text.TextUtils;
@@ -94,19 +93,11 @@ public class MagnificationGesturesPreferenceController extends TogglePreferenceC
     }
 
     static void populateMagnificationGesturesPreferenceExtras(Bundle extras, Context context) {
-        extras.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
-                Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED);
+        // TODO(b/270481978): It seems not necessary to put EXTRA_TITLE_RES.
         extras.putInt(AccessibilitySettings.EXTRA_TITLE_RES,
                 R.string.accessibility_screen_magnification_gestures_title);
 
-        String intro = context.getString(R.string.accessibility_screen_magnification_intro_text);
-        extras.putCharSequence(AccessibilitySettings.EXTRA_INTRO, intro);
-
-        String summary = context.getString(R.string.accessibility_screen_magnification_summary);
-        final Object[] numberArguments = {1, 2, 3, 4, 5};
-        summary = MessageFormat.format(summary, numberArguments);
-        extras.putCharSequence(AccessibilitySettings.EXTRA_HTML_DESCRIPTION, summary);
-
+        // TODO(b/270481978): It seems not necessary to put EXTRA_VIDEO_RAW_RESOURCE_ID.
         extras.putInt(AccessibilitySettings.EXTRA_VIDEO_RAW_RESOURCE_ID,
                 R.raw.accessibility_screen_magnification);
     }
diff --git a/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
index ca3c5f10e87..22c57b7a305 100644
--- a/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
@@ -122,7 +122,7 @@ public abstract class ToggleFeaturePreferenceFragment extends DashboardFragment
     private int mNeedsQSTooltipType = QuickSettingsTooltipType.GUIDE_TO_EDIT;
     private boolean mSavedAccessibilityFloatingMenuEnabled;
     private ImageView mImageGetterCacheView;
-    private final Html.ImageGetter mImageGetter = (String str) -> {
+    protected final Html.ImageGetter mImageGetter = (String str) -> {
         if (str != null && str.startsWith(IMG_PREFIX)) {
             final String fileName = str.substring(IMG_PREFIX.length());
             return getDrawableFromUri(Uri.parse(
diff --git a/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java b/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java
index 470e548d5d4..04a80dc489a 100644
--- a/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java
@@ -29,6 +29,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.pm.PackageManager;
 import android.icu.text.CaseMap;
+import android.icu.text.MessageFormat;
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.DeviceConfig;
@@ -220,6 +221,34 @@ public class ToggleScreenMagnificationPreferenceFragment extends
         addJoystickSetting(generalCategory);
     }
 
+    @Override
+    protected void onProcessArguments(Bundle arguments) {
+        Context context = getContext();
+
+        // This Fragment may get arguments from MagnificationGesturesPreferenceController or
+        // MagnificationNavbarPreferenceController and it's necessary to check if a key exists
+        // before putting a new value into arguments.
+
+        if (!arguments.containsKey(AccessibilitySettings.EXTRA_PREFERENCE_KEY)) {
+            arguments.putString(AccessibilitySettings.EXTRA_PREFERENCE_KEY,
+                    Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED);
+        }
+
+        if (!arguments.containsKey(AccessibilitySettings.EXTRA_INTRO)) {
+            arguments.putCharSequence(AccessibilitySettings.EXTRA_INTRO,
+                    context.getString(R.string.accessibility_screen_magnification_intro_text));
+        }
+
+        if (!arguments.containsKey(AccessibilitySettings.EXTRA_HTML_DESCRIPTION)) {
+            String summary = MessageFormat.format(
+                    context.getString(R.string.accessibility_screen_magnification_summary),
+                            new Object[]{1, 2, 3, 4, 5});
+            arguments.putCharSequence(AccessibilitySettings.EXTRA_HTML_DESCRIPTION, summary);
+        }
+
+        super.onProcessArguments(arguments);
+    }
+
     private void addAlwaysOnSetting(PreferenceCategory generalCategory) {
         if (!DeviceConfig.getBoolean(
                 DeviceConfig.NAMESPACE_WINDOW_MANAGER,
diff --git a/tests/robotests/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragmentTest.java b/tests/robotests/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragmentTest.java
index 8697cb5aa91..9916dc9d7f4 100644
--- a/tests/robotests/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragmentTest.java
+++ b/tests/robotests/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragmentTest.java
@@ -23,6 +23,7 @@ import static com.android.settings.accessibility.ToggleFeaturePreferenceFragment
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
@@ -405,6 +406,17 @@ public class ToggleScreenMagnificationPreferenceFragmentTest {
         assertThat(mFragment.getHelpResource()).isEqualTo(R.string.help_url_magnification);
     }
 
+    @Test
+    public void onProcessArguments_defaultArgumentUnavailable_shouldSetDefaultArguments() {
+        Bundle arguments = new Bundle();
+
+        mFragment.onProcessArguments(arguments);
+
+        assertTrue(arguments.containsKey(AccessibilitySettings.EXTRA_PREFERENCE_KEY));
+        assertTrue(arguments.containsKey(AccessibilitySettings.EXTRA_INTRO));
+        assertTrue(arguments.containsKey(AccessibilitySettings.EXTRA_HTML_DESCRIPTION));
+    }
+
     private void putStringIntoSettings(String key, String componentName) {
         Settings.Secure.putString(mContext.getContentResolver(), key, componentName);
     }