Enable the filterTouchesWhenObscured in Special app access

- Enable the filterTouchesWhenObscured attribute on all toggle
  switches in all pages of the special app access

Fixes: 155288585
Test: make RunSettingsRoboTests
Change-Id: I011cfe4b7e4e624a8338332ac47a353f7f3ab661

src/com/android/settings/widget/AppSwitchPreference.java

@@ -17,7 +17,9 @@
 package com.android.settings.widget;
 
 import android.content.Context;
+import android.view.View;
 
+import androidx.preference.PreferenceViewHolder;
 import androidx.preference.SwitchPreference;
 
 import com.android.settings.R;
@@ -28,4 +30,13 @@ public class AppSwitchPreference extends SwitchPreference {
         super(context);
         setLayoutResource(R.layout.preference_app);
     }
+
+    @Override
+    public void onBindViewHolder(PreferenceViewHolder holder) {
+        super.onBindViewHolder(holder);
+        final View switchView = holder.findViewById(android.R.id.switch_widget);
+        if (switchView != null) {
+            switchView.setFilterTouchesWhenObscured(true);
+        }
+    }
 }