ProxyAdapter.java

package ru.ltst.u2020mvp.ui.debug;

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

import com.f2prateek.rx.preferences.Preference;

import java.net.InetSocketAddress;

import ru.ltst.u2020mvp.ui.misc.BindableAdapter;

import static butterknife.ButterKnife.findById;

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

    private final Preference<InetSocketAddress> proxyAddress;

    ProxyAdapter(Context context, Preference<InetSocketAddress> proxyAddress) {
        super(context);
        if (proxyAddress == null) {
            throw new IllegalStateException("proxy == null");
        }
        this.proxyAddress = proxyAddress;
    }

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

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

    @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);
    }
}