Differential D53 Diff 183 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.net.ConnectivityManager;
		import android.net.NetworkInfo;
		import android.net.Uri;
		import android.util.Log;
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);

Show All 11 Lines	public abstract class utils {
{		{
return (int) (dips * con.getResources().getDisplayMetrics().density + 0.5f);		return (int) (dips * con.getResources().getDisplayMetrics().density + 0.5f);
}		}
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
		* @param con context object to get the system service
		* @return true if we are
		*/
		public static boolean isConnected(Context con) {
		ConnectivityManager connMgr = (ConnectivityManager) con.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
		return networkInfo != null && networkInfo.isConnected();
		}


		///////////////////// INTENT HELPER ////////////////////////////////////////////////////////////

		/**
		* Try to extract the bus stop ID from a URi
		*
		* @param uri The URL
		* @return bus stop ID or null
		*/
		public static String getBusStopIDFromUri(Uri uri) {
		String busStopID;

		// everithing catches fire when passing null to a switch.
		String host = uri.getHost();
		if (host == null) {
		Log.e("ActivityMain", "Not an URL: " + uri);
		return null;
		}

		switch (host) {
		case "m.gtt.to.it":
		// http://m.gtt.to.it/m/it/arrivi.jsp?n=1254
		busStopID = uri.getQueryParameter("n");
		if (busStopID == null) {
		Log.e("ActivityMain", "Expected ?n from: " + uri);
		}
		break;
		case "www.gtt.to.it":
		case "gtt.to.it":
		// http://www.gtt.to.it/cms/percorari/arrivi?palina=1254
		busStopID = uri.getQueryParameter("palina");
		if (busStopID == null) {
		Log.e("ActivityMain", "Expected ?palina from: " + uri);
		}
		break;
		default:
		Log.e("ActivityMain", "Unexpected intent URL: " + uri);
		busStopID = null;
		}
		return busStopID;
		}

		/**
		* Open an URL in the default browser.
		*
		* @param url URL
		*/
		public static void openIceweasel(String url, Context context) {
		Intent browserIntent1 = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
		context.startActivity(browserIntent1);
		}
}		}