tempus/app/src/main/java/com/cappielloantonio/play/util/Util.java

package com.cappielloantonio.play.util;

import android.content.Context;

import java.util.Locale;

public class Util {
    public static String getReadableDurationString(long songDurationMillis) {
        long minutes = (songDurationMillis / 1000) / 60;
        long seconds = (songDurationMillis / 1000) % 60;

        if (minutes < 60) {
            return String.format(Locale.getDefault(), "%01d:%02d", minutes, seconds);
        } else {
            long hours = minutes / 60;
            minutes = minutes % 60;
            return String.format(Locale.getDefault(), "%d:%02d:%02d", hours, minutes, seconds);
        }
    }

    public static float dpFromPx(final Context context, final float px) {
        return px / context.getResources().getDisplayMetrics().density;
    }

    public static float pxFromDp(final Context context, final float dp) {
        return dp * context.getResources().getDisplayMetrics().density;
    }
}