Improve a few UI components on the iOS app

ios/RocketRides/AppDelegate.swift

@@ -59,7 +59,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         STPTheme.default().primaryBackgroundColor = .riderVeryLightGrayColor
         STPTheme.default().primaryForegroundColor = .riderDarkBlueColor
         STPTheme.default().secondaryForegroundColor = .riderDarkGrayColor
-        STPTheme.default().accentColor = .riderBlueColor
+        STPTheme.default().accentColor = .riderGreenColor
 
         // Main API client configuration
         MainAPIClient.shared.baseURLString = baseURLString

ios/RocketRides/LocationSearchViewCell.swift

@@ -1,5 +1,5 @@
 //
-//  LocationCell.swift
+//  LocationSearchViewCell.swift
 //  RocketRides
 //
 //  Created by Romain Huet on 5/26/16.

ios/RocketRides/LocationSearchViewController.swift

@@ -33,8 +33,7 @@ class LocationSearchViewController: UIViewController, UITableViewDataSource, UIT
 
         let searchBarFont = UIFont.systemFont(ofSize: 17.0)
         UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).font = searchBarFont
-        UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).defaultTextAttributes = [NSFontAttributeName: searchBarFont]
-
+        UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).defaultTextAttributes = [NSFontAttributeName: searchBarFont, NSForegroundColorAttributeName: UIColor.riderDarkBlueColor]
     }
 
     override func viewWillAppear(_ animated: Bool) {

ios/RocketRides/MainAPIClient.swift

@@ -1,5 +1,5 @@
 //
-//  APIClient.swift
+//  MainAPIClient.swift
 //  RocketRides
 //
 //  Created by Romain Huet on 5/26/16.
@@ -33,6 +33,9 @@ class MainAPIClient: NSObject, STPEphemeralKeyProvider {
                 return
         }
 
+        // Important: For this demo, we're trusting the `amount` and `currency` coming from the client request.
+        // A real application should absolutely have the `amount` and `currency` securely computed on the backend
+        // to make sure the user can't change the payment amount from their web browser or client-side environment.
         let parameters: [String: Any] = [
             "source": source,
             "amount": amount,

ios/RocketRides/Ride.swift

@@ -1,5 +1,5 @@
 //
-//  RideRequest.swift
+//  Ride.swift
 //  RocketRides
 //
 //  Created by Romain Huet on 5/31/16.

ios/RocketRides/RideRequestViewController.swift

@@ -111,6 +111,7 @@ class RideRequestViewController: UIViewController, STPPaymentContextDelegate, Lo
 
         // Request location services authorization
         locationManager.requestWhenInUseAuthorization()
+        locationManager.startUpdatingLocation()
     }
 
     // MARK: Button Handlers

ios/RocketRides/RocketPathOverlay.swift

@@ -1,5 +1,5 @@
 //
-//  CurvedPolylineRenderer.swift
+//  RocketPathOverlay.swift
 //  RocketRides
 //
 //  Created by Joey Dong on 8/2/17.
@@ -43,7 +43,7 @@ class RocketPathOverlayRenderer: MKOverlayRenderer {
 
     private let rocketPathOverlay: RocketPathOverlay
 
-    var lineWidth: CGFloat = 5.0
+    var lineWidth: CGFloat = 10.0
     var strokeColor: UIColor?
     var arcMultiplier: CGFloat = 1.5
 

ios/RocketRides/UIView+Utility.swift

@@ -10,7 +10,7 @@ import UIKit
 
 extension UIView {
 
-    /// Apply clipping mask on certain corners with corner radius
+    // Apply clipping mask on certain corners with corner radius
     func layoutCornerRadiusMask(corners: UIRectCorner, cornerRadius: CGFloat) {
         let cornerRadii = CGSize(width: cornerRadius, height: cornerRadius)
         let path = UIBezierPath(roundedRect: bounds, byRoundingCorners: corners, cornerRadii: cornerRadii)
@@ -21,7 +21,7 @@ extension UIView {
         layer.mask = mask
     }
 
-    /// Apply corner radius and rounded shadow path
+    // Apply corner radius and rounded shadow path
     func layoutCornerRadiusAndShadow(cornerRadius: CGFloat) {
         // Apply corner radius for background fill only
         layer.cornerRadius = cornerRadius