1# SystemUI<a name="EN-US_TOPIC_0000001103330836"></a> 2 3- [Introduction](#section11660541593) 4 - [Architecture](#section125101832114213) 5 6- [Directory Structure](#section161941989596) 7- [Repositories Involved](#section1371113476307) 8 9## Introduction<a name="section11660541593"></a> 10 11SystemUI is a system app preinstalled in OpenHarmony. It provides users with interactive UIs that display system-related information, including the system status, prompts, and notifications \(such as the system time and battery level\). 12 13### Architecture<a name="section125101832114213"></a> 14 15 16 17## Directory Structure<a name="section161941989596"></a> 18 19``` 20/applications/standard/systemui 21├── figures # Architecture figures 22├── entry # Main entry module code 23│ └── src 24│ ├── main 25│ ├── js # JavaScript code 26│ ├── resources # Resource configuration files 27│ └── config.json # Global configuration files 28├── navigationBar # System navigation module code 29│ └── src 30│ ├── main 31│ ├── js # JavaScript code 32│ ├── resources # Resource configuration files 33│ └── config.json # Global configuration files 34├── signature # Certificate files 35├── LICENSE # License files 36``` 37 38## Repositories Involved<a name="section1371113476307"></a> 39 40System apps 41 42**applications\_systemui** 43 44
