refactor (ya late :D )

Author: Crusty

app/build.gradle

@@ -9,6 +9,9 @@ android {
     compileSdkVersion 31
     buildToolsVersion "30.0.3"
 
+    def localProperties = new Properties()
+    localProperties.load(new FileInputStream(rootProject.file("local.properties")))
+
     defaultConfig {
         applicationId "cz.crusty.aircrafter"
         minSdkVersion 23
@@ -17,6 +20,8 @@ android {
         versionName "1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        manifestPlaceholders.MAPS_API_KEY = localProperties['mapsApiKey']
     }
 
     buildTypes {

app/src/debug/res/values/google_maps_api.xml

@@ -18,17 +18,9 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Aircrafter">
 
-        <!--
-             The API key for Google Maps-based APIs is defined as a string resource.
-             (See the file "res/values/google_maps_api.xml").
-             Note that the API key is linked to the encryption key used to sign the APK.
-             You need a different API key for each encryption key, including the release key that is used to
-             sign the APK for publishing.
-             You can define the keys for the debug and release targets in src/debug/ and src/release/.
-        -->
         <meta-data
             android:name="com.google.android.geo.API_KEY"
-            android:value="@string/google_maps_key" />
+            android:value="${MAPS_API_KEY}" />
 
         <activity
             android:name=".MapsActivity"