android studio如何离线安装Realm？

repositories {
    flatDir {
        dirs 'libs'
    }
}

dependencies {
    implementation(name: 'realm-android-library', ext: 'aar')
}

import io.realm.Realm;
import io.realm.RealmConfiguration;

public class MainActivity extends AppCompatActivity {
    private Realm realm;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Realm.init(this);
        RealmConfiguration config = new RealmConfiguration.Builder()
                .name("myrealm.realm")
                .build();
        realm = Realm.getInstance(config);

        // 在这里可以进行Realm数据库的操作
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        realm.close();
    }
}