package com.google.marvin.config;



import android.content.Context;

import android.content.Intent;

import android.content.pm.PackageManager.NameNotFoundException;

import android.net.Uri;



/**

 * A collection of commonly used utility functions.

 * 

 * @author clchen@google.com (Charles L. Chen)

 */



public class Utils {

  public static boolean applicationInstalled(Context ctx, String packageName) {

    try {

      Context myContext = ctx.createPackageContext(packageName, 0);

    } catch (NameNotFoundException e) {

      return false;

    }

    return true;

  }



  public static Intent getMarketIntent(String packageName) {

    Uri marketUri = Uri.parse("market://search?q=pname:" + packageName);

    Intent marketIntent = new Intent(Intent.ACTION_VIEW, marketUri);

    return marketIntent;

  }



  public static Intent getAppStartIntent(Context ctx, String packageName, String className) {

    Intent intent = null;

    try {

      int flags = Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY;

      Context myContext = ctx.createPackageContext(packageName, flags);

      Class<?> appClass = myContext.getClassLoader().loadClass(className);

      intent = new Intent(myContext, appClass);

      intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

    } catch (NameNotFoundException e) {

      // TODO Auto-generated catch block

      e.printStackTrace();

    } catch (ClassNotFoundException e) {

      // TODO Auto-generated catch block

      e.printStackTrace();

    } 

    return intent;

  }

}