android-navigation-bar-visible-deprecated.md

Migrating from the deprecated androidNavigationBar.visible property

androidNavigationBar.visible property is deprecated in Android 11, API level 30 (Android docs: View.setSystemUiVisibility[https://developer.android.com/reference/android/view/WindowInsetsController]).

We only expose this API via the app.json so there are no application code deprecations. In Expo SDK 44, we introduced the programmatic API expo-navigation-bar which doesn't expose any API for setting View.setSystemUiVisibility directly.

Below we've translated some of the tips provided by Google for migrating to the new API.

None of the options will show the initial overlay that the deprecated API will, that must be implemented in user-space.

First install expo-navigation-bar (available in Expo Go after SDK +44), and expo-status-bar.

leanback

leanback results in the navigation bar being hidden until the first touch gesture is registered.

The lean back mode is for fullscreen experiences in which users won't be interacting heavily with the screen, such as while watching a video.

import * as NavigationBar from "expo-navigation-bar";
import { setStatusBarHidden } from "expo-status-bar";

NavigationBar.setPositionAsync("relative");
NavigationBar.setVisibilityAsync("hidden");
NavigationBar.setBehaviorAsync("inset-touch");
setStatusBarHidden(true, "none");

Config: leanback

Before

{
  "androidNavigationBar": {
    "visible": "leanback"
  }
}

After

{
  "androidStatusBar": {
    "hidden": true
  },
  "plugins": [
    [
      "expo-navigation-bar",
      {
        "position": "relative",
        "visibility": "hidden",
        "behavior": "inset-touch"
      }
    ]
  ]
}

immersive

immersive results in the navigation bar being hidden until the user swipes up from the edge where the navigation bar is hidden.

import * as NavigationBar from "expo-navigation-bar";
import { setStatusBarHidden } from "expo-status-bar";

NavigationBar.setPositionAsync("relative");
NavigationBar.setVisibilityAsync("hidden");
NavigationBar.setBehaviorAsync("inset-swipe");
setStatusBarHidden(true, "none");

Config: immersive

Before

{
  "androidNavigationBar": {
    "visible": "immersive"
  }
}

After

{
  "androidStatusBar": {
    "hidden": true
  },
  "plugins": [
    [
      "expo-navigation-bar",
      {
        "position": "relative",
        "visibility": "hidden",
        "behavior": "inset-swipe"
      }
    ]
  ]
}

sticky-immersive

sticky-immersive is identical to 'immersive' except that the navigation bar will be semi-transparent and will be hidden again after a short period of time.

import * as NavigationBar from "expo-navigation-bar";
import { setStatusBarHidden } from "expo-status-bar";

NavigationBar.setPositionAsync("absolute");
NavigationBar.setVisibilityAsync("hidden");
NavigationBar.setBehaviorAsync("inset-swipe");
NavigationBar.setBackgroundColorAsync("#00000080"); // `rgba(0,0,0,0.5)`
setStatusBarHidden(true, "none");

You can use setTimeout to hide the navigation bar after a certain duration:

import * as NavigationBar from "expo-navigation-bar";

function useStickyImmersiveReset() {
  const visibility = NavigationBar.useVisibility();

  React.useEffect(() => {
    if (visibility === "visible") {
      const interval = setTimeout(() => {
        NavigationBar.setVisibilityAsync("hidden");
      }, /* 3 Seconds */ 3000);

      return () => {
        clearTimeout(interval);
      };
    }
  }, [visibility]);
}

Config: sticky-immersive

Before

{
  "androidNavigationBar": {
    "visible": "sticky-immersive"
  }
}

After

{
  "androidStatusBar": {
    "hidden": true
  },
  "plugins": [
    [
      "expo-navigation-bar",
      {
        "position": "absolute",
        "visibility": "hidden",
        "behavior": "inset-swipe",
        "backgroundColor": "#00000080"
      }
    ]
  ]
}

Notes

• Google guide