feat:增加删除功能

android/app/build.gradle.kts

@@ -1,3 +1,13 @@
+import java.util.Properties
+import java.io.FileInputStream
+
+// 从根路径加载密钥属性
+val keystoreProperties = Properties()
+val keystorePropertiesFile = rootProject.file("key.properties")
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+}
+
 plugins {
     id("com.android.application")
     id("kotlin-android")
@@ -30,11 +40,34 @@ android {
         versionName = flutter.versionName
     }
 
+    signingConfigs {
+        create("release") {
+            if (keystorePropertiesFile.exists()) {
+                keyAlias = keystoreProperties.getProperty("keyAlias")
+                keyPassword = keystoreProperties.getProperty("keyPassword")
+                storeFile = file(keystoreProperties.getProperty("storeFile"))
+                storePassword = keystoreProperties.getProperty("storePassword")
+            }
+        }
+    }
+
     buildTypes {
+        debug {
+            signingConfig = if (keystorePropertiesFile.exists()) {
+                signingConfigs.getByName("release")
+            } else {
+                signingConfigs.getByName("debug")
+            }
+        }
+
         release {
-            // TODO: Add your own signing config for the release build.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig = signingConfigs.getByName("debug")
+            signingConfig = if (keystorePropertiesFile.exists()) {
+                // 使用发布签名
+                signingConfigs.getByName("release")
+            } else {
+                // 使用默认签名
+                signingConfigs.getByName("debug")
+            }
         }
     }
 }