Blazin: Prompt user to Rate App on Google play from Application

package com.shir60bhushan.excelContacts.About_N_Help;
import com.shir60bhushan.excelContacts.R;
import android.app.Dialog;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.Typeface;
import android.net.Uri;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;

public class AppRater
{
 private final static String APP_TITLE    = "Battery Saver Widget";
 private final static String APP_PNAME    = "com.batterysaverwidget";
 static Typeface    tf;
 private final static int DAYS_UNTIL_PROMPT  = 3;
 private final static int LAUNCHES_UNTIL_PROMPT = 7;


 public static void app_launched(Context mContext)
 {
  tf = Typeface.createFromAsset(mContext.getAssets(), "Merienda-Regular.ttf");
  SharedPreferences prefs = mContext.getSharedPreferences("apprater", 0);

  if(prefs.getBoolean("dontshowagain", false))
  {
   return;
  }

  SharedPreferences.Editor editor = prefs.edit();

  // Increment launch counter
  long launch_count = prefs.getLong("launch_count", 0) + 1;
  editor.putLong("launch_count", launch_count);


 // Get date of first launch

  Long date_firstLaunch = prefs.getLong("date_firstlaunch", 0);
  if(date_firstLaunch == 0)
  {
   date_firstLaunch = System.currentTimeMillis();
   editor.putLong("date_firstlaunch", date_firstLaunch);
  }


 // Wait at least n days before opening

  if(launch_count >= LAUNCHES_UNTIL_PROMPT)
  {
   if(System.currentTimeMillis() >= date_firstLaunch + (DAYS_UNTIL_PROMPT * 24 * 60 * 60 * 1000))
   {
    showRateDialog(mContext, editor);
  }
 editor.commit();
 }

 public static void showRateDialog(final Context mContext, final SharedPreferences.Editor editor)
 {
  final Dialog dialog = new Dialog(mContext);

 TextView tvTitle = new TextView(mContext);
  dialog.setTitle(" Rate " + APP_TITLE + "  ");

  LinearLayout ll = new LinearLayout(mContext);
  ll.setOrientation(LinearLayout.VERTICAL);

  TextView tv = new TextView(mContext);
  tv.setText("If you enjoy using " + APP_TITLE + ", please take a moment to rate it. Thanks for your support!");
  tv.setWidth(240);
  tv.setTextColor(Color.WHITE);
  tv.setPadding(4, 0, 4, 10);
  tv.setTypeface(tf);
  ll.addView(tv);


  Button b1 = new Button(mContext);

  //b1.setBackgroundResource(R.drawable.selector_buttons);
  b1.setText("Rate " + APP_TITLE);
  b1.setTypeface(tf, Typeface.BOLD);
 b1.setOnClickListener(new View.OnClickListener()
  {
   public void onClick(View v)
   {
    mContext.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + APP_PNAME)));
    dialog.dismiss();
   }
  });
  ll.addView(b1);

  Button b2 = new Button(mContext);
  b2.setText("Remind me later");
  // b2.setBackgroundResource(R.drawable.selector_buttons);
  b2.setTypeface(tf, Typeface.BOLD);

  b2.setOnClickListener(new View.OnClickListener()
  {
   public void onClick(View v)
   {
    dialog.dismiss();
   }
  });
  ll.addView(b2);


  Button b3 = new Button(mContext);
  b3.setText("No, thanks");
  //b3.setBackgroundResource(R.drawable.selector_buttons);
  b3.setTypeface(tf, Typeface.BOLD);
  b3.setOnClickListener(new View.OnClickListener()
  {
   public void onClick(View v)
   {
    if(editor != null)
    {
     editor.putBoolean("dontshowagain", true);
     editor.commit();
    }
    dialog.dismiss();
   }
  });

  ll.addView(b3);
 dialog.setContentView(ll);
  dialog.show();
 }
}