expo-splash-screen
Advanced tools
Provides a module to allow keeping the native Splash Screen visible until you choose to hide it.
The expo-splash-screen package is used to control and customize the splash screen for Expo and React Native apps. It allows developers to show a splash screen while the app is loading, hide it once the app is ready, and customize its appearance.
Preventing Auto-Hide
This feature allows you to prevent the splash screen from auto-hiding. This is useful if you need to perform some asynchronous operations before the splash screen is hidden.
import * as SplashScreen from 'expo-splash-screen';
SplashScreen.preventAutoHideAsync();Hiding the Splash Screen
This feature allows you to manually hide the splash screen once your app is ready. This is typically done after your app has finished loading all necessary resources.
import * as SplashScreen from 'expo-splash-screen';
async function hideSplashScreen() {
await SplashScreen.hideAsync();
}Showing the Splash Screen
This feature allows you to manually show the splash screen. This can be useful if you need to display the splash screen again after it has been hidden.
import * as SplashScreen from 'expo-splash-screen';
async function showSplashScreen() {
await SplashScreen.showAsync();
}The react-native-splash-screen package provides similar functionality to expo-splash-screen, allowing you to control the splash screen in a React Native app. It offers methods to show and hide the splash screen, but it requires more manual setup compared to expo-splash-screen.
The react-native-bootsplash package is another alternative for managing splash screens in React Native apps. It provides a more customizable and flexible approach compared to expo-splash-screen, with support for different splash screen images for different devices and orientations.
expo-splash-screen allows you to customize your app's splash screen, which is the initial screen users see when the app is launched, before it has loaded. Splash screens (sometimes called launch screens) provide a user's first experience with your application.
expo-splash-screen contains a built-in feature for taking care of properly displaying your splash screen image. You can use the following resize modes to obtain behavior as if you were using the React Native <Image> component's resizeMode style.
CONTAIN resize modeScale the image uniformly (maintaining the image's aspect ratio) so that both dimensions the width and height of the image will be equal to or less than the corresponding dimension of the device's screen.
COVER resize modeScale the image uniformly (maintaining the image's aspect ratio) so that both the width and height of the image will be equal to or larger than the corresponding dimension of the device's screen.
NATIVE resize modeAndroid only.
By using this resize mode your app will will leverage Android's ability to present a static bitmap while the application is starting up. Android (unlike iOS) does not support stretching of the provided image during launch, so the application will present the given image centered on the screen at its original dimensions.
| Android |
|
https://user-images.githubusercontent.com/379606/120575878-b3afe980-c3d6-11eb-80c1-72441c22e8be.mp4 |
Animation above presents one of our known issues
Selecting this resize mode requires some more work to be done in native configuration.
Please take a look at the res/drawable/splashscreen.xml and res/drawable/splashscreen_background.png sections.
expo-splash-screen supports per-appearance splash screens that respond to system appearance changes on iOS 13+ and dark-mode changes on Android 10+.
expo-splash-screen allows customization of the StatusBar according to the ReactNative StatusBar API.
import * as SplashScreen from 'expo-splash-screen';
The native splash screen that is controlled via this module autohides once the ReactNative-controlled view hierarchy is mounted. This means that when your app first renders view component, the native splash screen will hide. This default behavior can be prevented by calling SplashScreen.preventAutoHideAsync() and later on SplashScreen.hideAsync().
SplashScreen.preventAutoHideAsync()This method makes the native splash screen stay visible until SplashScreen.hideAsync() is called. This must be called before any ReactNative-controlled view hierarchy is rendered (either in the global scope of your main component, or when the component renders null at the beginning - see Examples section).
Preventing default autohiding might come in handy if your application needs to prepare/download some resources and/or make some API calls before first rendering some actual view hierarchy.
A Promise that resolves to true when preventing autohiding succeeded and to false if the native splash screen is already prevented from autohiding (for instance, if you've already called this method).
Promise rejection most likely means that native splash screen cannot be prevented from autohiding (it's already hidden when this method was executed).
SplashScreen.hideAsync()Hides the native splash screen. Only works if the native splash screen has been previously prevented from autohiding by calling SplashScreen.preventAutoHideAsync() method.
A Promise that resolves to true once the splash screen becomes hidden and to false if the splash screen is already hidden.
SplashScreen.preventAutoHideAsync() in global scopeApp.tsx
import React from 'react';
import { StyleSheet, Text, View } from 'react-native';
import * as SplashScreen from 'expo-splash-screen';
// Prevent native splash screen from autohiding before App component declaration
SplashScreen.preventAutoHideAsync()
.then((result) => console.log(`SplashScreen.preventAutoHideAsync() succeeded: ${result}`))
.catch(console.warn); // it's good to explicitly catch and inspect any error
export default class App extends React.Component {
componentDidMount() {
// Hides native splash screen after 2s
setTimeout(async () => {
await SplashScreen.hideAsync();
}, 2000);
}
render() {
return (
<View style={styles.container}>
<Text style={styles.text}>SplashScreen Demo! 👋</Text>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
justifyContent: 'center',
backgroundColor: '#aabbcc',
},
text: {
color: 'white',
fontWeight: 'bold',
},
});
SplashScreen.preventAutoHideAsync() in component that initially renders nullApp.tsx
import React from 'react';
import { StyleSheet, Text, View } from 'react-native';
import * as SplashScreen from 'expo-splash-screen';
export default class App extends React.Component {
state = {
appIsReady: false,
};
async componentDidMount() {
// Prevent native splash screen from autohiding
try {
await SplashScreen.preventAutoHideAsync();
} catch (e) {
console.warn(e);
}
this.prepareResources();
}
/**
* Method that serves to load resources and make API calls
*/
prepareResources = async () => {
await performAPICalls(...);
await downloadAssets(...);
this.setState({ appIsReady: true }, async () => {
await SplashScreen.hideAsync();
});
}
render() {
if (!this.state.appIsReady) {
return null;
}
return (
<View style={styles.container}>
<Text style={styles.text}>SplashScreen Demo! 👋</Text>
</View>
)
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
justifyContent: 'center',
backgroundColor: '#aabbcc',
},
text: {
color: 'white',
fontWeight: 'bold',
},
});
Refer to the SplashScreen section of the Expo documentation.
For bare React Native projects, you must ensure that you have installed and configured the expo package before continuing.
npx expo install expo-splash-screen
Run npx pod-install after installing the package.
To achieve native splash screen (in iOS ecosystem it's called LaunchScreen) behavior, you have to provide either a SplashScreen.storyboard file or a SplashScreen.xib file, and configure your Xcode project accordingly.
The guide below shows how to configure your Xcode project to use a single image file as a splash screen using a .storyboard file (configuration for .xib filetype is analogous).
Images.xcassetsSplashScreen.storyboardContent Mode for the ImageView in SplashScreen.storyboardSplashScreen.storyboard as the LaunchScreenImages.xcassetsFirst you need to add the image file that would serve as a splash screen to your native project's resources.
.xcassets (often named Images.xcassets or Assets.xcassets) file.New image set and name it SplashScreen.
SplashScreen.storyboardThis is the actual splash screen definition and will be used by the system to render your splash screen.
SplashScreen.storyboard file.View Controller to the newly created .storyboard file:
Library (+ button on the top-right),View Controller element,.storyboard file.
Image View to the View Controller:
View element from View Controller,Library (+ button on the top-right),Image View element,View Controller child in view hierarchy inspector.
Storyboard ID to SplashScreenViewController:
View Controller in view hierarchy inspector,Identity Inspector in the right panel,Storyboard ID to SplashScreenViewController.
Is Initial View Controller in SplashScreenViewController:
View Controller in view hierarchy inspector,Attributes Inspector in the right panel,Is Initial View Controller in View Controller section.
Image View source:
Image View in view hierarchy inspector,Attributes Inspector in the right panel,SplashScreen in Image parameter).
Background of the Image View:
Image View in view hierarchy inspector,Attributes Inspector in the right panel,Background parameter:
#RRGGBB value you need to select Custom option and in the Colors Popup that appeared you need to navigate to the second tab and choose RGB Sliders from dropdown select.
Content Mode for the ImageView in SplashScreen.storyboardThis is how your image will be displayed on the screen.
SplashScreen.storyboard and select Image View from View Controller.Attributes Inspector in the right panel and locate Content Mode.Aspect Fit to obtain CONTAIN resize mode,Aspect Fill to obtain COVER resize mode.
SplashScreen.storyboard as the LaunchScreenThe newly created SplashScreen.storyboard needs to be marked as the Launch Screen File in your Xcode project in order to be presented from the very beginning of your application launch.
Project NavigatorTARGETS panel and navigate to General tab.App Icons and Launch Images section and Launch Screen File option.SplashScreen as the value for located option.
Depending on what iOS version your application is targeting, you have to adjust your native project differently to a obtain working per-appearance splash screen view.
You can take advantage of named colors in your Xcode project.
Color Set and customize its values for different color modes:
.xcassets directory (either create a new .xcassets for colors, or reuse an existing one e.g. with images) create New Color Set and name it SplashScreenBackground,Attributes Inspector in the right panel and change Appearance to Any, Dark,Attributes Inspector in the right panel for each mode.
named color as the Background for the Image View in SplashScreen.storyboard:
SplashScreen.storyboard and select Image View in view hierarchy inspector,Attributes Inspector in the right panel,Background parameter by selecting your created named color (that should be listed as SplashScreenBackground).
You cannot use named colors feature in your Xcode project.
Instead you have to create an additional image set that contains small 1x1px images, each with the desired background color. Then, you'll use this additional image resource as a background in the splash screen view.
You can use this online generator to obtain 1x1px .png images with desired colors: http://www.1x1px.me.
SplashScreenBackground Image Set with desired background colors for each mode in your Images.xcassets directory:
.xcassets directory with images,New image set and name it SplashScreenBackground,Image set to support Dark Appearance by navigating to Attributes Inspector in the right panel and changing Appearance to Any, Dark,
Update SplashScreen.storyboard to consist of a single top-level View with two Image View subviews (solid-colored image in the background and actual splash screen image in the foreground):
SplashScreen.storyboard and replace Image View with a plain View (search Library for it and drag&drop it in place of current Image View),Configure first Image View (background color):
Attributes Inspector:
Image to SplashScreenBackground (prepared in previous step),Content Mode to Scale To Fill (color needs to take all available space),Add new constraints bottom menu,Constrain to margin is not checked,View (parent view reference) and set 0 as the value,0 value and parent view reference selected in dropdown) hit Add 4 Constraints,View Hierarchy Inspector constraints are added and Image View resized to take whole place of parent view.
Image View (actual splash screen image):
Image View and select correct Image in Attributes Inspector alongside with desired Content Mode,
You might want to add a separate image for dark mode. If the system is switched to dark mode, it would pick this different image instead of the normal one and present it in the splash screen view.
SplashScreen (created in previous section).Dark Appearance:Attributes Inspector in the right panel,Appearances section and select Any, Dark,dark mode by dropping it to the correct box.
If you're targeting a version of iOS < 11 then you cannot use named color feature and instead you need to generate images with desired background colors that are going to be used as the background for splash screen view.
There is this awesome 1x1px png online generator: http://www.1x1px.me (use it to generate two 1x1px images with desired background colors for different color modes).
You might want to customize the StatusBar appearance during the time the SplashScreen is being shown.
StatusBar hiding flag:TARGETS panel and navigate to Info tab,Status bar initially hidden attribute with desired value.
StatusBar style option:TARGETS panel and navigate to Info tab,Status bar style attribute with desired value.
To achieve fully-native splash screen behavior, expo-splash-screen needs to be hooked into the native view hierarchy and consume some resources that have to be placed under /android/app/src/res directory.
res/drawable/splashscreen_image.pngres/values/colors.xmlres/drawable/splashscreen.xmlres/values/styles.xmlAndroidManifest.xmlresizeModeres/drawable/splashscreen_image.pngYou have to provide your splash screen image and place it under the res/drawable directory.
This image will be loaded as soon as Android mounts your application's native view hierarchy.
NATIVE mode adjustmentsIf you've overridden <string name="expo_splash_screen_resize_mode">native</string> mode in res/values/strings.xml, you need to do a few additional steps.
In your application's res directory you might want to have a number of drawable-X sub-directories (where X is the different DPI for different devices). They store different versions of images that are picked based on the device's DPI (for more information please see this official Android docs).
To achieve proper scaling of your splash screen image on every device you should have following directories:
res/drawable-mdpi - scale 1x - resources for medium-density (mdpi) screens (~160dpi). (This is the baseline density.)res/drawable-hdpi - scale 1.5x - resources for high-density (hdpi) screens (~240dpi).res/drawable-xhdpi - scale 2x - resources for extra-high-density (xhdpi) screens (~320dpi).res/drawable-xxhdpi - scale 3x - resources for extra-extra-high-density (xxhdpi) screens (~480dpi).res/drawable-xxxhdpi - scale 4x - resources for extra-extra-extra-high-density (xxxhdpi) uses (~640dpi).Each of directories mentioned above should contain the same splashscreen_image.png file, but with a different resolution (pay attention to scale factors).
res/values/colors.xmlThis file contains colors that are reused across your application at the native level. Update the file with the following content or create one if missing:
<resources>
+ <color name="splashscreen_background">#AABBCC</color> <!-- #AARRGGBB or #RRGGBB format -->
<!-- Other colors defined for your application -->
</resources>
res/drawable/splashscreen.xmlThis file contains the description of how the splash screen view should be drawn by the Android system. Create the file with the following content:
+ <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+ <item android:drawable="@color/splashscreen_background"/>
+ </layer-list>
NATIVE mode adjustmentsIf you've overridden <string name="expo_splash_screen_resize_mode">native</string> mode in res/values/strings.xml, you shoulw add:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/splashscreen_background"/>
+ <item>
+ <bitmap android:gravity="center" android:src="@drawable/splashscreen_image"/>
+ </item>
</layer-list>
res/values/styles.xmlLocate your main activity theme in /android/app/src/res/values/styles.xml or create one if missing.
<!-- Main activity theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
+ <item name="android:windowBackground">@drawable/splashscreen</item> <!-- this line instructs the system to use 'splashscreen.xml' as a background of the whole application -->
<!-- Other style properties -->
</style>
AndroidManifest.xmlAdjust your application's main AndroidManifest.xml to contain an android:theme property pointing to the style that contains your splash screen configuration:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myapp">
...
<application ...>
+ <!-- Ensure that 'android:theme' property is pointing to the style containing native splash screen reference - see 'styles.xml' -->
<activity
android:name=".MainActivity"
+ android:theme="@style/AppTheme"
...
>
...
</activity>
</application>
</manifest>
resizeModeThe default image resizeMode is CONTAIN. If you want to have different resizeMode, you need to override in res/values/strings.xml.
--- a/android/app/src/main/res/values/strings.xml
+++ b/android/app/src/main/res/values/strings.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<resources>
<string name="app_name">sdk42</string>
+ <string name="expo_splash_screen_resize_mode">contain|cover|native</string>
</resources>
res/values-night/colors.pngIf you want to have different background colors in your splash screen depending on the system color mode, you need to create a similar file to colors.xml, but in the directory res/values-night.
Values in this file are going to picked by the system when it is switched to dark mode.
<resources>
+ <color name="splashscreen_background">#AABBCC</color> <!-- #AARRGGBB or #RRGGBB format -->
</resources>
res/drawable-night/splashscreen_image.pngYou might want to provide a separate splash screen image for dark mode usage, and place it under the res/drawable-night directory with exactly the same name as the normal one.
This step is optional, because you might want to have the same image in both light and dark modes (e.g. you have just a light-themed logo and you want to have different background colors in different modes).
You might want to customize the StatusBar appearance during the time the SplashScreen is being shown.
StatusBar hiding flagTo have the StatusBar completely hidden you need to update your res/values/styles.xml file with the following entry (to prevent StatusBar from hiding either remove this entry or enter false as the value):
<!-- Main/SplashScreen activity theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowBackground">@drawable/splashscreen</item>
+ <item name="android:windowFullscreen">true</item>
<!-- Other style properties -->
</style>
If you have multiple styles.xml files located in different directories containing exactly the same style entry (e.g. in res/values-night, res/values-night-v23, etc.), be sure to update these files accordingly.
Read more about android:windowFullscreen flag in official Android documentation.
StatusBar style optionThis option is only available for Android devices running Android 6.0 or greater.
To enforce light or dark StatusBar style for given system color mode, you have to prepare or update your res/values-v23/styles.xml file with the following entry (as of this option being supported since API 23, you have to configure specifically named directory containing separate configuration files):
<!-- Main/SplashScreen activity theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowBackground">@drawable/splashscreen</item>
+ <item name="android:windowLightStatusBar">true|false</item>
<!-- Other style properties -->
</style>
Available values:
true for having dark-colored icons,false for having light-colored icons.If you have multiple styles.xml files located in different directories containing exactly the same style entry (e.g. in res/values-night-v23 (for dark color mode), etc.), be sure to update these files accordingly.
Read more about android:windowLightStatusBar flag in official Android documentation.
To read more about Android multi-API-level support see this official documentation.
StatusBar color option (a.k.a. background color of the StatusBar component)To achieve custom background color you need to create a new color resource and provide it to the SplashScreen style description.
Create new color resource in your res/values/colors.xml (if your application supports dark mode, consider adding different color in res/values-night/colors.xml file):
<resources>
<color name="splashscreen_background">#D0D0C0</color>
+ <color name="splashscreen_statusbar_color">#(AA)RRGGBB</color> <!-- #AARRGGBB or #RRGGBB format -->
</resources>
Update your res/values/styles.xml file with the following entry:
<!-- Main/SplashScreen activity theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowBackground">@drawable/splashscreen</item>
+ <item name="android:statusBarColor">@color/splashscreen_statusbar_color</item>
<!-- Other style properties -->
</style>
If you have multiple styles.xml files located in different directories containing exactly the same style entry (e.g. in res/values-night, res/values-night-v23, etc.), be sure to update these files accordingly.
Read more about android:statusBarColor option in official Android documentation.
StatusBar translucent flagWhen the StatusBar is translucent, the app will be able to draw under the StatusBar component area.
To make the StatusBar translucent update your res/values/strings.xml file with the following content:
--- a/android/app/src/main/res/values/strings.xml
+++ b/android/app/src/main/res/values/strings.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<resources>
<string name="app_name">sdk42</string>
+ <string name="expo_splash_screen_status_bar_translucent">true</string>
</resources>
Contributions are very welcome! Please refer to guidelines described in the contributing guide.
Splash Screens on iOS apps can sometimes encounter a caching issue where the previous image will flash before showing the new, intended image. When this occurs, we recommend you try power cycling your device and uninstalling and re-installing the application. However, the caching sometimes can persist for a day or two so be patient if the aforementioned steps were unable to resolve the issue.
NATIVE mode pushes splash image up a little bitSee NATIVE mode preview above.
We are aware of this issue and unfortunately haven't been able to provide a solution as of yet. This is on our immediate roadmap...
We try to keep changes backward compatible, the code for expo-splash-screen will still work as it used to be. However, if you are going to migrate as new style API, here are the steps:
--- a/android/app/src/main/java/com/helloworld/MainActivity.java
+++ b/android/app/src/main/java/com/helloworld/MainActivity.java
import com.facebook.react.ReactRootView;
import com.swmansion.gesturehandler.react.RNGestureHandlerEnabledRootView;
-import host.exp.exponent.experience.splashscreen.legacy.singletons.SplashScreen;
-import host.exp.exponent.experience.splashscreen.legacy.SplashScreenImageResizeMode;
-
public class MainActivity extends ReactActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// This is required for expo-splash-screen.
setTheme(R.style.AppTheme);
super.onCreate(null);
- // SplashScreen.show(...) has to be called after super.onCreate(...)
- SplashScreen.show(this, SplashScreenImageResizeMode.CONTAIN, ReactRootView.class, false);
}
resizeMode and statusBarTranslucent in stings.xml--- a/android/app/src/main/res/values/strings.xml
+++ b/android/app/src/main/res/values/strings.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<resources>
<string name="app_name">sdk42</string>
+ <string name="expo_splash_screen_resize_mode">contain</string>
+ <string name="expo_splash_screen_status_bar_translucent">false</string>
</resources>
This module is based on a solid work from (many thanks for that 👏):
FAQs
Provides a module to allow keeping the native Splash Screen visible until you choose to hide it.
We found that expo-splash-screen demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 28 open source maintainers collaborating on the project.
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