okhttp dns ipv4 priority

app/build.gradle

@@ -11,7 +11,7 @@ android {
         minSdk 21
         targetSdk 28
         versionCode 235
-        versionName "0519"
+        versionName "0520"
         javaCompileOptions {
             annotationProcessorOptions {
                 arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]

catvod/src/main/java/com/github/catvod/net/OkDns.java

@@ -0,0 +1,25 @@
+package com.github.catvod.net;
+
+import androidx.annotation.NonNull;
+
+import java.net.Inet4Address;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.List;
+
+import okhttp3.Dns;
+
+public class OkDns implements Dns {
+
+    @NonNull
+    @Override
+    public List<InetAddress> lookup(@NonNull String hostname) throws UnknownHostException {
+        List<InetAddress> items = new ArrayList<>();
+        for (InetAddress address : InetAddress.getAllByName(hostname)) {
+            if (address instanceof Inet4Address) items.add(0, address);
+            else items.add(address);
+        }
+        return items;
+    }
+}

catvod/src/main/java/com/github/catvod/net/OkHttp.java

@@ -56,7 +56,7 @@ public class OkHttp {
     }
 
     public static Dns dns() {
-        return get().dns != null ? get().dns : Dns.SYSTEM;
+        return get().dns != null ? get().dns : new OkDns();
     }
 
     public void setDoh(Doh doh) {