1.添加启动图icon；

android/app/src/main/AndroidManifest.xml

@@ -1,34 +1,33 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.zy.ksymscan">
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
 
     <application
-        android:name="${applicationName}"
+        android:name=".MyApp"
+        android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:usesCleartextTraffic="true"
-        android:roundIcon="@mipmap/ic_launcher_round"
-        android:icon="@mipmap/ic_launcher">
+        android:roundIcon="@mipmap/ic_launcher_round">
         <activity
             android:name=".MainActivity"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:exported="true"
             android:hardwareAccelerated="true"
             android:launchMode="singleTop"
             android:theme="@style/LaunchTheme"
-            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:windowSoftInputMode="adjustResize">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
                  while the Flutter UI initializes. After that, this theme continues
                  to determine the Window background behind the Flutter UI. -->
             <meta-data
-              android:name="io.flutter.embedding.android.NormalTheme"
-              android:resource="@style/NormalTheme"
-              />
+                android:name="io.flutter.embedding.android.NormalTheme"
+                android:resource="@style/NormalTheme" />
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
         <!-- Don't delete the meta-data below.

android/app/src/main/res/drawable/launch_background.xml

@@ -1,12 +1,11 @@
-<?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">
+<?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"
+    android:opacity="translucent">
     <item android:drawable="@android:color/white" />
 
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
+    <item android:gravity="center">
         <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
+            android:src="@mipmap/ic_launcher_round"
+            android:tileMode="disabled" />
+    </item>
 </layer-list>

lib/main.dart

@@ -53,7 +53,7 @@ class _MyAppState extends State<MyApp> {
       //     centerTitle: true,
       //   ),
       // ),
-      // supportedLocales: S.delegate.supportedLocales,
+      supportedLocales: S.delegate.supportedLocales,
       localizationsDelegates: const [
         GlobalCupertinoLocalizations.delegate,
         GlobalWidgetsLocalizations.delegate,