From db224f8d77393f131a154da484be0c4adf21000f Mon Sep 17 00:00:00 2001
From: Jonathan Tsai <jontsai@jontsai.com>
Date: Thu, 28 Aug 2014 18:47:39 -0700
Subject: [PATCH] format currency according to the locale - use
 NSNumberFormatter to automatically handle currency symbol, thousands/decimal
 separator not reformatting when switching out/back into the app, only when
 view reloads

---
 tips/Base.lproj/Main.storyboard | 3 +--
 tips/TipsViewController.swift   | 8 ++++----
 tips/Utils.swift                | 7 +++++++
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/tips/Base.lproj/Main.storyboard b/tips/Base.lproj/Main.storyboard
index fc3c12f..761a23a 100644
--- a/tips/Base.lproj/Main.storyboard
+++ b/tips/Base.lproj/Main.storyboard
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6206.8" systemVersion="13E28" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" initialViewController="7ip-7N-UBI">
     <dependencies>
-        <deployment defaultVersion="1792" identifier="iOS"/>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7026.1"/>
     </dependencies>
     <scenes>
@@ -146,7 +145,7 @@
                                 <nil key="highlightedColor"/>
                             </label>
                             <view contentMode="scaleToFill" id="fdb-zN-cI6">
-                                <rect key="frame" x="2" y="271" width="316" height="1"/>
+                                <rect key="frame" x="0.0" y="271" width="320" height="1"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                 <color key="backgroundColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>
                             </view>
diff --git a/tips/TipsViewController.swift b/tips/TipsViewController.swift
index 96f2bb9..614dc05 100644
--- a/tips/TipsViewController.swift
+++ b/tips/TipsViewController.swift
@@ -18,8 +18,8 @@ class TipsViewController: UIViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
         // Do any additional setup after loading the view, typically from a nib.
-        tipLabel.text = "$0.00"
-        totalLabel.text = "$0.00"
+        tipLabel.text = formatCurrency(0.0)
+        totalLabel.text = formatCurrency(0.0)
     }
 
     override func viewWillAppear(animated: Bool) {
@@ -71,8 +71,8 @@ class TipsViewController: UIViewController {
         if (wasEdited) {
             storeLastBillAmount(billAmount)
         }
-        tipLabel.text = String(format: "$%.2f", tip)
-        totalLabel.text = String(format: "$%.2f", total)
+        tipLabel.text = formatCurrency(tip)
+        totalLabel.text = formatCurrency(total)
     }
     
 }
diff --git a/tips/Utils.swift b/tips/Utils.swift
index 65fe6c7..1e00b81 100644
--- a/tips/Utils.swift
+++ b/tips/Utils.swift
@@ -19,3 +19,10 @@ func getDefaults(key: String) -> AnyObject? {
     var value: AnyObject? = defaults.objectForKey(key)
     return value
 }
+
+func formatCurrency(amount: Double) -> String {
+    var numberFormatter = NSNumberFormatter()
+    numberFormatter.numberStyle = NSNumberFormatterStyle.CurrencyStyle
+    var formattedAmount = numberFormatter.stringFromNumber(amount)
+    return formattedAmount
+}