在添加完毕wallpaper.jsk之后,再在工程中配置签名信息;

jsk生成方式,通过keytool命令,执行keytool -genkey -v -keystore wallpaper.jks -alias wallpaper -keyalg RSA -keysize 2048 -validity 36500,其中wallpaper.jks 与后面的wallpaper名称只要保持一致即可(可以取任意名称),其他部分不需要更改:
/Applications/Android\ Studio.app/Contents/jbr/Contents/Home/bin/keytool -genkey -v -keystore wallpaper.jks -alias wallpaper -keyalg RSA -keysize 2048 -validity 36500

wallpaper/android/app/build.gradle

@@ -22,8 +22,12 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
+def keystorePropertiesFile = rootProject.file("key.properties")
+def keystoreProperties = new Properties()
+keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+
 android {
-    namespace "com.lux.wallpapertoday"
+    namespace "com.example.wallpaper"
     compileSdk flutter.compileSdkVersion
     ndkVersion flutter.ndkVersion
 
@@ -42,7 +46,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.example.wallpaper"
+        applicationId "com.lux.wallpapertoday"
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
         minSdkVersion flutter.minSdkVersion
@@ -51,11 +55,27 @@ android {
         versionName flutterVersionName
     }
 
-    buildTypes {
+    signingConfigs {
         release {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storePassword keystoreProperties['storePassword']
+        }
+    }
+
+    buildTypes {
+        debug {
+            signingConfig signingConfigs.release
+        }
+
+        release {
+            ndk{
+                abiFilters "armeabi", "armeabi-v7a", "arm64-v8a"
+            }
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig signingConfigs.debug
+            signingConfig signingConfigs.release
         }
     }
 }