MenuDetailViewBinder.java

package de.ironjan.mensaupb.menus_ui;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.Resources;
import android.database.Cursor;
import android.view.View;
import android.widget.TextView;

import java.util.Locale;

import de.ironjan.mensaupb.R;
import de.ironjan.mensaupb.stw.BadgesStringConverter;
import de.ironjan.mensaupb.stw.rest_api.Badge;
import de.ironjan.mensaupb.stw.rest_api.PriceType;

/**
 * Binds raw menus to de.ironjan.mensaupb.R.layout.view_menu_list_item
 */
public class MenuDetailViewBinder implements android.support.v4.widget.SimpleCursorAdapter.ViewBinder {

    @Override
    public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
        if (view == null || cursor == null || columnIndex < 0) {
            return false;
        }

        if (!(view instanceof TextView)) {
            return false;
        }


        int id = view.getId();
        switch (id) {
            case R.id.textName:
                bindName((TextView) view, cursor);
                return true;
            case R.id.textCategory:
                bindCategory((TextView) view, cursor);
                return true;
            case R.id.textPrice:
                bindPrice((TextView) view, cursor, columnIndex);
                return true;
            case R.id.textPricePer100g:
                bindPricePer100g((TextView) view, cursor, columnIndex);
                return true;
            case R.id.textBadges:
                bindBadges((TextView) view, cursor, columnIndex);
                return true;
            default:
                ((TextView) view).setText(cursor.getString(columnIndex));
                return true;
        }
    }

    private void bindName(TextView view, Cursor cursor) {
        boolean isEnglish = Locale.getDefault().getLanguage().startsWith(Locale.ENGLISH.toString());
        final String name;
        if (isEnglish) {
            name = cursor.getString(MenuListingAdapter.NAME_EN_INDEX);
        } else {
            name = cursor.getString(MenuListingAdapter.NAME_DE_INDEX);
        }
        view.setText(name);
    }

    private void bindCategory(TextView view, Cursor cursor) {
        boolean isEnglish = Locale.getDefault().getLanguage().startsWith(Locale.ENGLISH.toString());
        final String category;
        if (isEnglish) {
            category = cursor.getString(MenuListingAdapter.CATEGORY_EN_INDEX);
        } else {
            category = cursor.getString(MenuListingAdapter.CATEGORY_DE_INDEX);
        }
        view.setText(category);

    }

    private void bindPrice(TextView view, Cursor cursor, int columnIndex) {
        Double price = cursor.getDouble(columnIndex);
        if (price != 0) {
            // it can be 0 when syncing and not yet set
            String priceAsString = String.format(Locale.GERMAN, "%.2f €", price);
            view.setText(priceAsString);
        }
    }

    @SuppressLint("SetTextI18n")
    private void bindPricePer100g(TextView view, Cursor cursor, int columnIndex) {
        double price = cursor.getDouble(columnIndex - 1);
        if (price == 0) {
            return;
        }

        String string = cursor.getString(columnIndex);
        if (PriceType.WEIGHT.toString().equals(string)) {
            view.setText("/100g");
        } else {
            view.setText("");
        }
    }

    private void bindBadges(TextView textView, Cursor cursor, int columnIndex) {
        String badgesAsString = cursor.getString(columnIndex);
        Badge[] badges = BadgesStringConverter.convert(badgesAsString);
        Context context = textView.getContext();
        Resources resources = context.getResources();

        if (badges == null || badges.length < 1) {
            textView.setText("");
            return;
        }

        StringBuilder stringBuilder = new StringBuilder(context.getString(badges[0].getStringId()));
        for (int i = 1; i < badges.length; i++) {
            String badgeString = resources.getString(badges[i].getStringId());
            stringBuilder.append(", ")
                    .append(badgeString);
        }
        textView.setText(stringBuilder.toString());
    }
}