add select activity for multiserver authentication

app/src/main/java/com/dkanada/gramophone/adapter/SelectAdapter.java

@@ -0,0 +1,88 @@
+package com.dkanada.gramophone.adapter;
+
+import android.content.Intent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.dkanada.gramophone.App;
+import com.dkanada.gramophone.R;
+import com.dkanada.gramophone.activities.SplashActivity;
+import com.dkanada.gramophone.model.User;
+import com.dkanada.gramophone.util.PreferenceUtil;
+import com.dkanada.gramophone.views.IconImageView;
+
+import java.util.List;
+
+public class SelectAdapter extends RecyclerView.Adapter<SelectAdapter.ViewHolder> {
+    private final AppCompatActivity activity;
+    private final List<User> users;
+
+    public SelectAdapter(@NonNull AppCompatActivity activity, List<User> users) {
+        this.activity = activity;
+        this.users = users;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(activity).inflate(R.layout.card_server, parent, false);
+
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        final User user = users.get(position);
+
+        holder.name.setText(user.name);
+        holder.url.setText(user.server);
+    }
+
+    @Override
+    public int getItemCount() {
+        return users.size();
+    }
+
+    public class ViewHolder extends RecyclerView.ViewHolder {
+        TextView name;
+        TextView url;
+
+        IconImageView delete;
+        IconImageView select;
+
+        public ViewHolder(@NonNull View itemView) {
+            super(itemView);
+
+            name = itemView.findViewById(R.id.name);
+            url = itemView.findViewById(R.id.url);
+            delete = itemView.findViewById(R.id.delete);
+            select = itemView.findViewById(R.id.select);
+
+            delete.setOnClickListener(this::onDelete);
+            select.setOnClickListener(this::onSelect);
+        }
+
+        public void onSelect(View v) {
+            final User user = users.get(getBindingAdapterPosition());
+
+            PreferenceUtil.getInstance(activity).setServer(user.server);
+            PreferenceUtil.getInstance(activity).setUser(user.id);
+
+            activity.startActivity(new Intent(activity, SplashActivity.class));
+        }
+
+        public void onDelete(View v) {
+            final User user = users.get(getBindingAdapterPosition());
+
+            App.getDatabase().userDao().deleteUser(user);
+            users.remove(user);
+            notifyDataSetChanged();
+        }
+    }
+}