fix: replace System.getProperty with System.getenv

Tested-by: Pranav Purwar <[email protected]>
Signed-off-by: PranavPurwar <[email protected]>

app/build.gradle.kts

@@ -11,6 +11,8 @@ plugins {
     id("dev.rikka.tools.materialthemebuilder")
 }
 
+apply from ('https://raw2.github.com/cookpad/gradle-android-sdk-manager/master/sdk_manager.gradle'
+
 android {
     namespace = "org.cosmicide"
     compileSdk = 34
@@ -22,8 +24,8 @@ android {
         applicationId = "org.cosmicide"
         minSdk = 26
         targetSdk = 34
-        versionCode = 20
-        versionName = "2.0"
+        versionCode = 22
+        versionName = "2.2"
         buildConfigField("String", "GIT_COMMIT", "\"$commit\"")
     }
 
@@ -242,7 +244,11 @@ dependencies {
 
 // Fetches Android SDK root
 fun getSdkDir(): File {
-    var sdk = System.getProperty("ANDROID_HOME")
+    var sdk = System.getenv("ANDROID_HOME")
+
+    if (sdk.isNullOrBlank()) {
+        sdk = System.getenv("ANDROID_SDK")
+    }
 
     if (sdk.isNullOrBlank()) {
         val f = File(System.getProperty("user.dir") + "/local.properties")