Launcher3: Setup icon pack's launchIntent

This allow us to open the icon pack's app by clicking the gear icon when
opening the icon pack selection page.

Author: nullxception

src/com/android/launcher3/icons/pack/IconPackSettingsFragment.java

@@ -146,6 +146,14 @@ private SelectorWithWidgetPreference buildPreference(Context context, String pkg
         pref.setTitle(label);
         pref.setPersistent(false);
         pref.setChecked(isChecked);
+        if (!pkgName.equals(IconDatabase.VALUE_DEFAULT)) {
+            Intent intent = context.getPackageManager().getLaunchIntentForPackage(pkgName);
+            if (intent != null) {
+                pref.setExtraWidgetOnClickListener((v) -> {
+                    context.startActivity(intent);
+                });
+            }
+        }
         return pref;
     }