# Display Full Screen Android API

### Overview

This guide describes how to use Android's immersive mode to hide the status and navigation bars, enabling third-party applications to achieve a full-screen display.

### Key Points

* Using Immersive Mode:
  * Immersive mode is a feature provided by Android that allows applications to hide the status bar and navigation bar for a full-screen experience.
* Limitation of Standard Immersive Mode:
  * In standard immersive mode, users can still pull down the status bar to view notifications and system messages.
* Enhancing Functionality with Permissions:
  * To prevent the status bar from appearing even when pulled down, you can enhance the immersive mode by adding specific permissions to your application.
  * After adding these permissions, the status bar will remain hidden, maintaining the full-screen mode without interruption.

### Permission

```xml
 android.permission.CLOUDPOS_REAL_FULLSCREEN
```

The application declares permissions in the manifest.

### Code snippet

{% code overflow="wrap" lineNumbers="true" %}

```java
//statusBar，navigationBar are all not display
getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN);

//statusBar is display, navigationBar is not display
getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_VISIBLE);
```

{% endcode %}

### Download

Please download the [whole demo](https://ftp.wizarpos.com/advanceSDK/RealFullScreenSample.zip).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://smartpossdk.gitbook.io/cloudpossdk/faq/other-development/display-full-screen-android-api.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.