CommonUtils.java

package com.cwport.sentencer;

import android.content.Context;
import android.content.res.Resources;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.DisplayMetrics;

/**
 * Created by isayev on 16.04.2014.
 */
public class CommonUtils {

    public static boolean isConnectedOrConnectingToNetwork(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        if (cm == null)
            return false;

        NetworkInfo[] infos = cm.getAllNetworkInfo();

        for (NetworkInfo info : infos)
            if (info.isConnectedOrConnecting())
                return true;

        return false;
    }

    public static float convertDpToPixel(float dp, Context context) {
        Resources resources = context.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        float px = dp * (metrics.densityDpi / 160f);
        return px;
    }

    public static float convertPixelsToDp(float px, Context context) {
        Resources resources = context.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        float dp = px / (metrics.densityDpi / 160f);
        return dp;
    }

}