Correction bug, modernisation

app/build.gradle

@@ -2,9 +2,19 @@ plugins {
     id 'com.android.application'
 }
 
+// Load local.properties
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withInputStream { localProperties.load(it) }
+}
+
 android {
     namespace 'com.example.boidelov3'
     compileSdk 33
+    buildFeatures {
+        buildConfig = true
+    }
     packagingOptions { resources.excludes.add("META-INF/*") } // This line is added to avoid the error: Duplicate files copied in APK META-INF/LICENSE.txt
     defaultConfig {
         applicationId "com.example.boidelov3"
@@ -14,6 +24,11 @@ android {
         versionName "1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        // Inject database credentials into BuildConfig
+        buildConfigField "String", "DB_URL", "\"${localProperties.getProperty('db.url', '')}\""
+        buildConfigField "String", "DB_USER", "\"${localProperties.getProperty('db.user', '')}\""
+        buildConfigField "String", "DB_PASSWORD", "\"${localProperties.getProperty('db.password', '')}\""
     }
 
     buildTypes {