react-native-splash-screen安装及建立链接

npm i react-native-splash-screen --save

react-native link react-native-splash-screen 
或 
rnpm link react-native-splash-screen

1.在 android/settings.gradle 文件中添加下列代码:

include ':react-native-splash-screen'
project(':react-native-splash-screen').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-splash-screen/android')

2.在 android/app/build.gradle 文件中添加 :react-native-splash-screen

dependencies {
    implementation project(':react-native-splash-screen') // 新增
}

3.更新MainApplication.java 文件

import org.devio.rn.splashscreen.SplashScreenReactPackage; //新增
官方文档需要增加：new SplashScreenReactPackage() ，在RN0.68+版本中无需增加以下代码（自测）
@Override
        protected List getPackages() {
            return Arrays.asList(
                    new MainReactPackage(),
            new SplashScreenReactPackage()  //添加这一句
            );
        }
        

4.更新 MainActivity.java 文件如下：

import android.os.Bundle;
import org.devio.rn.splashscreen.SplashScreen; 
public class MainActivity extends ReactActivity {
	@Override
 	 protected void onCreate(Bundle savedInstanceState) {
      		SplashScreen.show(this);
      		super.onCreate(savedInstanceState);
 	 }
}

import SplashScreen from 'react-native-splash-screen'

androidappsrcmainres：
drawable-hdpi
drawable-ldpi
drawable-mdpi
drawable-xhdpi
drawable-xxhdpi
drawable-xxxhdpi