DeviceUtils.java

package net.hockeyapp.android.utils;

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;

import net.hockeyapp.android.Constants;

/**
 * <h3>Description</h3>
 *
 * Device helper class.
 *
 */
public class DeviceUtils {
    /**
     * Private constructor prevents instantiation from other classes
     */
    private DeviceUtils() {
    }

    /**
     * DeviceUtilsHolder is loaded on the first execution of DeviceUtils.getInstance()
     * or the first access to DeviceUtilsHolder.INSTANCE, not before.
     */
    private static class DeviceUtilsHolder {
        public static final DeviceUtils INSTANCE = new DeviceUtils();
    }

    public static DeviceUtils getInstance() {
        return DeviceUtilsHolder.INSTANCE;
    }

    /**
     * Returns the current version of the app.
     *
     * @param context the context to use
     * @return The version code as integer.
     */
    public int getCurrentVersionCode(Context context) {
        return Integer.parseInt(Constants.APP_VERSION);
    }

    /**
     * Returns the app's name.
     *
     * @param context the context to use
     * @return The app's name as a String.
     */
    public String getAppName(Context context) {
        if (context == null) {
            return "";
        }

        try {
            PackageManager pm = context.getPackageManager();
            if (pm == null) {
                return "";
            }

            ApplicationInfo applicationInfo = pm.getApplicationInfo(context.getPackageName(), 0);

            return pm.getApplicationLabel(applicationInfo).toString();
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        }

        return "";
    }
}