@lvothnrv/react-native-launchscreen v0.0.2

⚡️ react-native-launchscreen

A React Native launch screen based on react-native-splash-screen and react-native-bootsplash, compatible with both iOS and Android platforms.

Installation

npm install @lvothnrv/react-native-launchscreen
# --- or ---
yarn add @lvothnrv/react-native-launchscreen

iOS

1. Edit the ios/YourProjectName/AppDelegate.mm file:

#import "AppDelegate.h"
#import "LaunchScreen.h" // ⬅️ add the header import

// …

@implementation AppDelegate

// …

// ⬇️ Add this before file @end
- (UIView *)createRootViewWithBridge:(RCTBridge *)bridge
                          moduleName:(NSString *)moduleName
                           initProps:(NSDictionary *)initProps {
  UIView *rootView = [super createRootViewWithBridge:bridge
                                          moduleName:moduleName
                                           initProps:initProps];

  [LaunchScreen initWithStoryboard:@"LaunchScreen" rootView:rootView];

  return rootView;
}

@end

2. Create a LaunchScreen.storyboard (which is typically already created) and modify it as desired.

Android

1. Update the MainActivity.java to use react-native-launchscreen via the following changes:

import android.os.Bundle; // here
import com.facebook.react.ReactActivity;

import com.lvothnrv.launchscreen.LaunchScreen; // here


public class MainActivity extends ReactActivity {
   @Override
    protected void onCreate(Bundle savedInstanceState) {
        LaunchScreen.show(this);  // here
        super.onCreate(savedInstanceState);
    }
    // ...other code
}

2. Create a file called launch_screen.xml in app/src/main/res/layout (create the layout-folder if it doesn't exist). The contents of the file should be the following:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ImageView android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/launch_screen" android:scaleType="centerCrop" />
</RelativeLayout>

Customize your launch screen by creating a launch_screen.png-file and placing it in an appropriate drawable-folder. Android automatically scales drawable, so you do not necessarily need to provide images for all phone densities. You can create splash screens in the following folders:

• drawable-ldpi
• drawable-mdpi
• drawable-hdpi
• drawable-xhdpi
• drawable-xxhdpi
• drawable-xxxhdpi

API

hide()

Hide the splash screen with a fade out.

Method type

type hide = () => Promise<void>;

Usage

import { useEffect } from "react";
import { Text } from "react-native";
import LaunchScreen from "react-native-launchscreen";

const App = () => {
  useEffect(() => {
    const init = async () => {
      // …do multiple sync or async tasks
    };

    init().finally(async () => {
      await LaunchScreen.hide();
      console.log("LaunchScreen has been hidden successfully");
    });
  }, []);

  return <Text>My awesome app</Text>;
};

Why

This module is a combination of two existing modules: react-native-splash-screen and react-native-bootsplash. I developed this module by leveraging these two for two main reasons:

Firstly, on iOS, react-native-splash-screen didn't work properly with Firebase. Therefore, I chose to base my module on react-native-bootsplash, as it was compatible with Firebase.

Secondly, on Android, react-native-bootsplash doesn't simply allow displaying an image like react-native-splash-screen does. Since this functionality is important to me, I opted for react-native-splash-screen in this aspect.