android 9 support

app/build.gradle.kts

@@ -14,7 +14,7 @@ android {
 
     defaultConfig {
         applicationId = "com.cherret.zaprett"
-        minSdk = 29
+        minSdk = 28
         targetSdk = 35
         versionCode = 25
         versionName = "2.13"

app/src/main/java/com/cherret/zaprett/byedpi/ByeDpiVpnService.kt

@@ -8,6 +8,7 @@ import android.app.PendingIntent
 import android.content.Intent
 import android.content.SharedPreferences
 import android.net.VpnService
+import android.os.Build
 import android.os.ParcelFileDescriptor
 import android.util.Log
 import androidx.core.app.NotificationCompat
@@ -130,7 +131,9 @@ class ByeDpiVpnService : VpnService() {
             .addAddress("10.10.10.10", 32)
             .addDnsServer(dns)
             .addRoute("0.0.0.0", 0)
-            .setMetered(false)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            builder.setMetered(false)
+        }
         if (ipv6) {
             builder.addAddress("fd00::1", 128)
                 .addRoute("::", 0)