การกำหนด Splash screen ให้กับ app ใน Flutter

<meta-data
              android:name="io.flutter.embedding.android.SplashScreenDrawable"
              android:resource="@drawable/launch_background"
              />

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.flutter_app2">
    <uses-permission android:name="android.permission.INTERNET" />
   <application
        android:label="flutter_app2"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name=".MainActivity"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
........
.....

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
        <!-- Show a splash screen on the activity. Automatically removed when
             Flutter draws its first frame -->
        <item name="android:windowBackground">@drawable/launch_background</item>
    </style>
    <!-- Theme applied to the Android Window as soon as the process has started.
         This theme determines the color of the Android Window while your
         Flutter UI initializes, as well as behind your Flutter UI while its
         running.
         
         This Theme is only used starting with V2 of Flutter's Android embedding. -->
    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
        <item name="android:windowBackground">?android:colorBackground</item>
    </style>
</resources>

<style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
        <!-- Show a splash screen on the activity. Automatically removed when
             Flutter draws its first frame -->
    <item name="android:windowBackground">@drawable/launch_background</item>
<!-- <item name="android:windowFullscreen">false</item>-->
</style>

<style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
    <item name="android:windowBackground">?android:colorBackground</item>
</style>

<?xml version="1.0" encoding="utf-8"?>
<!-- Modify this file to customize your launch splash screen -->
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@android:color/white" />

    <!-- You can insert your own image assets here -->
    <!-- <item>
        <bitmap
            android:gravity="center"
            android:src="@mipmap/launch_image" />
    </item> -->
</layer-list>

<item android:drawable="@android:color/white" />

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="ic_launcher_background">#FFC0CB</color>
    <color name="red">#FF0000</color>
</resources>

<item android:drawable="@color/red" />

<item>
    <bitmap android:gravity="center" android:src="@mipmap/ic_launcher" />
</item>

<?xml version="1.0" encoding="utf-8"?>
<!-- Modify this file to customize your launch splash screen -->
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@color/red" />
    <item>
        <bitmap android:gravity="center" android:src="@mipmap/ic_launcher" />
    </item>
</layer-list>

    <item>
        <bitmap android:gravity="fill" android:src="@drawable/background_splash" />
    </item>
    <item>
        <bitmap android:gravity="center" android:src="@drawable/splash" />
    </item>

dev_dependencies:
  flutter_native_splash: ^1.3.1

flutter_native_splash:
  color: "#F8A1A4"
  image: "assets/splash.png"
  ios: false 
  web: false 

flutter pub run flutter_native_splash:create

flutter_native_splash:
  color: "#F8A1A4"
  image: "assets/splash.png"
  color_dark: "#042a49"
  image_dark: assets/splash-invert.png
  ios: false 
  web: false