A smart splash screen for React Native apps, written in JS, oc and java for cross-platform support. It works on iOS and Android.
npm install react-native-smart-splash-screen --save
It can only be used greater-than-equal react-native 0.4.0 for ios, if you want to use the package less-than react-native 0.4.0, use npm install [email protected] --save
- 
Drag RCTSplashScreen.xcodeproj to your project on Xcode.
 - 
Click on your main project file (the one that represents the .xcodeproj) select Build Phases and drag libRCTSplashScreen.a from the Products folder inside the RCTSplashScreen.xcodeproj.
 - 
Look for Header Search Paths and make sure it contains $(SRCROOT)/../../../react-native/React as recursive.
 - 
In your project, Look for Header Search Paths and make sure it contains $(SRCROOT)/../node_modules/react-native-smart-splash-screen/ios/RCTSplashScreen/RCTSplashScreen
 - 
delete your project's LaunchScreen.xib
 - 
Drag SplashScreenResource folder to your project if you want change image, replace splash.png or add a image with your custom name
 - 
In AppDelegate.m
 
...
#import "RCTSplashScreen.h" //import interface
...
RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
                                                  moduleName:@"ReactNativeComponents"
                                           initialProperties:nil
                                               launchOptions:launchOptions];
//[RCTSplashScreen open:rootView];
[RCTSplashScreen open:rootView withImageNamed:@"splash"]; // activate splashscreen, imagename from LaunchScreen.xib
rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
UIViewController *rootViewController = [UIViewController new];
rootViewController.view = rootView;
self.window.rootViewController = rootViewController;
[self.window makeKeyAndVisible];
return YES;
- In 
android/settings.gradle 
...
include ':react-native-smart-splashscreen'
project(':react-native-smart-splashscreen').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-smart-splash-screen/android')
- In 
android/app/build.gradle 
...
dependencies {
    ...
    // From node_modules
    compile project(':react-native-smart-splashscreen')
}
- 
Add your own
drawable/splash.pngtoandroid/app/src/main/res/, it is recommended to adddrawable-?dpifolders that you need. - 
in MainApplication.java
 
...
import com.reactnativecomponent.splashscreen.RCTSplashScreenPackage;    //import package
...
/**
 * A list of packages used by the app. If the app uses additional views
 * or modules besides the default ones, add more packages here.
 */
@Override
protected List<ReactPackage> getPackages() {
    return Arrays.<ReactPackage>asList(
        new MainReactPackage(),
        new RCTSplashScreenPackage()    //register Module
    );
}
...
- in MainActivity.java
 
...
import com.reactnativecomponent.splashscreen.RCTSplashScreen;    //import RCTSplashScreen
...
@Override
protected void onCreate(Bundle savedInstanceState) {
    RCTSplashScreen.openSplashScreen(this);   //open splashscreen
    //RCTSplashScreen.openSplashScreen(this, true, ImageView.ScaleType.FIT_XY);   //open splashscreen fullscreen
    super.onCreate(savedInstanceState);
}
- In 
android/app/**/styles.xml 
...
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <!-- Customize your theme here. -->
    <item name="android:windowIsTranslucent">true</item>
</style>
...
...
import SplashScreen from 'react-native-smart-splash-screen'
...
componentDidMount () {
     //SplashScreen.close(SplashScreen.animationType.scale, 850, 500)
     SplashScreen.close({
        animationType: SplashScreen.animationType.scale,
        duration: 850,
        delay: 500,
     })
}
...- 
close(animationType, duration, delay) close splash screen with custom animation
- animationType: determine the type of animation. enum(animationType.none, animationType.fade, animationType.scale)
 - duration: determine the duration of animation
 - delay: determine the delay of animation
 
 

