Differential D57 Diff 191 src/it/reyboz/bustorino/backend/utils.java

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src/it/reyboz/bustorino/backend/utils.java

	package it.reyboz.bustorino.backend;			package it.reyboz.bustorino.backend;

	import android.content.Context;			import android.content.Context;
	import android.content.Intent;			import android.content.Intent;
	import android.net.ConnectivityManager;			import android.net.ConnectivityManager;
	import android.net.NetworkInfo;			import android.net.NetworkInfo;
	import android.net.Uri;			import android.net.Uri;
	import android.util.Log;			import android.util.Log;
				import android.util.TypedValue;
	import android.view.View;			import android.view.View;

	public abstract class utils {			public abstract class utils {
	private static final double EarthRadius = 6371e3;			private static final double EarthRadius = 6371e3;
	public static Double measuredistanceBetween(double lat1,double long1,double lat2,double long2){			public static Double measuredistanceBetween(double lat1,double long1,double lat2,double long2){
	final double phi1 = Math.toRadians(lat1);			final double phi1 = Math.toRadians(lat1);
	final double phi2 = Math.toRadians(lat2);			final double phi2 = Math.toRadians(lat2);

	final double deltaPhi = Math.toRadians(lat2-lat1);			final double deltaPhi = Math.toRadians(lat2-lat1);
	final double deltaTheta = Math.toRadians(long2-long1);			final double deltaTheta = Math.toRadians(long2-long1);

	final double a = Math.sin(deltaPhi/2)*Math.sin(deltaPhi/2)+			final double a = Math.sin(deltaPhi/2)*Math.sin(deltaPhi/2)+
	Math.cos(phi1)Math.cos(phi2)Math.sin(deltaTheta/2)*Math.sin(deltaTheta/2);			Math.cos(phi1)Math.cos(phi2)Math.sin(deltaTheta/2)*Math.sin(deltaTheta/2);
	final double c = 2*Math.atan2(Math.sqrt(a),Math.sqrt(1-a));			final double c = 2*Math.atan2(Math.sqrt(a),Math.sqrt(1-a));

	return Math.abs(EarthRadius*c);			return Math.abs(EarthRadius*c);

	}			}
				/*
	public static int convertDipToPixels(Context con,float dips)			public static int convertDipToPixels(Context con,float dips)
	{			{
	return (int) (dips * con.getResources().getDisplayMetrics().density + 0.5f);			return (int) (dips * con.getResources().getDisplayMetrics().density + 0.5f);
	}			}
				*/

				public static float convertDipToPixels(Context con, float dp){
				return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,con.getResources().getDisplayMetrics());
				}
	public static int calculateNumColumnsFromSize(View containerView, int pixelsize){			public static int calculateNumColumnsFromSize(View containerView, int pixelsize){
	int width = containerView.getWidth();			int width = containerView.getWidth();
	float ncols = ((float)width)/pixelsize;			float ncols = ((float)width)/pixelsize;
	return (int) Math.floor(ncols);			return (int) Math.floor(ncols);
	}			}

	/**			/**
	* Check if there is an internet connection			* Check if there is an internet connection
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