ProxyAdapter.java

package com.ponyvillelive.pvlmobile.ui;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.ponyvillelive.pvlmobile.prefs.StringPreference;

import static butterknife.ButterKnife.findById;

class ProxyAdapter extends BindableAdapter<String> {
    public static final int NONE  = 0;
    public static final int PROXY = 1;

    private final StringPreference proxy;

    ProxyAdapter(Context context, StringPreference proxy) {
        super(context);
        if (proxy == null) {
            throw new IllegalStateException("proxy == null");
        }
        this.proxy = proxy;
    }

    @Override
    public int getCount() {
        return 2 /* "None" and "Set" */ + (proxy.isSet() ? 1 : 0);
    }

    @Override
    public String getItem(int position) {
    if (position == 0) {
      return "None";
    }
    if (position == getCount() - 1) {
      return "Set…";
    }
    return proxy.get();
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  public View newView(LayoutInflater inflater, int position, ViewGroup container) {
    return inflater.inflate(android.R.layout.simple_spinner_item, container, false);
  }

  @Override
  public void bindView(String item, int position, View view) {
    TextView tv = findById(view, android.R.id.text1);
    tv.setText(item);
  }

  @Override
  public View newDropDownView(LayoutInflater inflater, int position, ViewGroup container) {
    return inflater.inflate(android.R.layout.simple_spinner_dropdown_item, container, false);
  }
}