By Xmartlabs SRL.

Current Google Places version used is 3.3

Swift 5 is supported from version 3.2

Contents

• Introduction
• Installation
• Usage
• Dependencies
• Requirements
• Getting involved
• Examples
• Customization
• FAQ

Introduction

GooglePlacesRow is a row extension for Eureka. It implements a row where the user can use Google Places autocomplete functionality to select a place suggested by the API.

GooglePlacesRow includes two rows with similar functionality but their options are displayed differently:

• GooglePlacesAccessoryRow: displays a collection view as the inputAccessoryView of the cell. The user will be able to scroll horizontally to select the desired place
• GooglePlacesTableRow: displays a UITableView directly below the cell for the user to choose the desired option.

The project is experimental and open to changes although it is already quite customizable.

Installation

CocoaPods

CocoaPods is a dependency manager for Cocoa projects.

To install GooglePlacesRow, simply add the following line to your Podfile:

pod 'GooglePlacesRow'

This will also install Eureka and GooglePlaces.

Note: Do not add pod 'GooglePlaces' to your podfile as this library includes it as a vendor framework

Usage

How to get API key

1. Navigate to https://console.developers.google.com/
2. Create a new project (or choose existing one)
3. Enable Google Places API for iOS
4. Copy the key and paste in AppDelegate.swift

How to use GooglePlacesRow

1. First, navigate to AppDelegate.swift and add import GooglePlaces on top.

   // AppDelegate.swift
   import GooglePlaces

2. In method didFinishLaunchingWithOptions add this code before return keyword.

   // AppDelegate.swift, application:didFinishLaunchingWithOptions
   let apiKey = "YOUR_API_KEY"
   GMSPlacesClient.provideAPIKey(apiKey)

3. Subclass your ViewController with FormViewController

   class YourViewController: FormViewController {
       override func viewDidLoad() {
           super.viewDidLoad()
   		// Code for setting up Eureka goes here
       }
   }

4. Use it in your Eureka form, as you would any other Eureka row.

   // in your controller, in viewDidLoad()
   form +++ Section("Choose from table view")
       <<< GooglePlacesTableRow() { row in
   	        row.title = "Location" // Adds a title to a row
   	        row.tag = "location" // Upon parsing a form you get a nice key if you use a tag
   	        row.add(ruleSet: RuleSet<GooglePlace>()) // We can use GooglePlace() as a rule
   	        row.validationOptions = .validatesOnChangeAfterBlurred
   	        row.cell.textLabel?.textColor = UIColor.black
   		}
   		.cellUpdate { cell, row in // Optional
   	        // Do something when cell updates
   		}
   
       +++ Section("Customized cell, customized layout")
           <<< GooglePlacesAccessoryRow().cellSetup { cell, row in
               (cell.collectionViewLayout  as? UICollectionViewFlowLayout)?.sectionInset = UIEdgeInsets.zero
               (cell.collectionViewLayout  as? UICollectionViewFlowLayout)?.minimumInteritemSpacing = 40
               cell.customizeCollectionViewCell = { customCell in
                   customCell.label.textColor = UIColor.red
                   customCell.layer.borderColor = UIColor.green.cgColor
                   customCell.layer.borderWidth = 1
                   customCell.layer.cornerRadius = 4
               }
           }

To see what you can customize have a look at the Customization section or the FAQ

Dependencies

• Eureka
• GooglePlaces (and all the frameworks it depends on)
• GoogleMapsBase

Note: You only need to add pod 'GooglePlacesRow' to your podfile and other pods will be installed automatically

Requirements

• iOS 9.3+
• Xcode 10.2+

Getting involved

• If you want to contribute please feel free to submit pull requests.
• If you have a feature request please open an issue.
• If you found a bug or need help please check older issues or the FAQ before submitting an issue..

Before contributing check the CONTRIBUTING file for more info.

If you use GooglePlacesRow in your app we would love to hear about it! Drop us a line on twitter.

Examples

Follow these steps to run Example project:

• Clone GooglePlacesRow repository
• Execute git submodule add https://github.com/xmartlabs/Eureka.git in the cloned folder.
• Open GooglePlacesRow workspace
• Set your Google places API KEY in AppDelegate.swift
• and run the Example project.

Customization

General customization

There are five variables that you can use to modify the default behavior of these rows:

• In the row:
  • placeFilter: Is a GMSAutocompleteFilter used in the request to Google Places to define what kind of suggestions will be returned (e.g. cities, addresses, country). Refer to the official documentation of Google for more detailed information.
  • placeBounds: Bounds to limit the search for places. Refer to the official documentation of Google for more detailed information.
  • onNetworkingError: Block that is called when the request to Google Places returns an error
• In the cell:
  • useTimer: If the request to Google Places should be throttled using a timer. If true then it will wait for timerInterval seconds before making a request. If the user continues entering text into the row then the previous request will not be fired
  • timerInterval: The interval in seconds used for the timer explained above

GooglePlacesAccessoryRow

GooglePlacesAccessoryRow uses a generic GooglePlacesCollectionCell cell whose generic parameter is the UICollectionViewCell class used in the inputAccessoryView.

• If you just want to change minor things of the cell (you most probably will want to) then the customizeCollectionViewCell callback is for you. This block is called in the delegates collectionView:cellForItemAtIndexPath: method.

• If you want to change the layout of the collectionView then you can use/modify/override the collectionViewLayout attribute in the cellSetup method when declaring the row. Have a look at the examples for this.

• If you want to change something about the collectionView (e.g. its height, backgroundColor) then you can also do that in the cellSetup method. Have a look at the examples for this.

• If you want to change the collection view cell of the inputAccessoryView drastically then there is nothing easier than creating your own row (MyGooglePlacesAccessoryRow) with your own MyCollectionViewCell:

public final class MyGooglePlacesAccessoryRow: _GooglePlacesRow<GooglePlacesCollectionCell<MyCollectionViewCell>>, RowType {
    required public init(tag: String?) {
        super.init(tag: tag)
    }
}

In this case just make sure your cell conforms to EurekaGooglePlacesCollectionViewCell

GooglePlacesTableRow

GooglePlacesTableRow uses a generic GooglePlacesTableCell cell whose generic parameter is the UITableViewCell class used to create the cells displayed in a UITableView with the suggested options from Google Places.

• If you just want to change minor things of the cells that display the options (you will most probably want to) then the customizeTableViewCell callback is for you. This block is called in the delegates tableView:cellForRowAtIndexPath: method.

• You can customize attributes of the tableView that is displayed with the options. You should do this in cellSetup and keep in mind that the frame of the tableView is reset each time the tableView is displayed.

• If you want to change these cells drastically then there is nothing easier than creating your own row (MyGooglePlacesAccessoryRow) with your own MyCollectionViewCell:

public final class MyGooglePlacesAccessoryRow: _GooglePlacesRow<GooglePlacesCollectionCell<MyCollectionViewCell>>, RowType {
    required public init(tag: String?) {
        super.init(tag: tag)
    }
}

In this case just make sure your cell conforms to EurekaGooglePlacesTableViewCell

FAQ

Xcode says ld: framework not found GoogleMaps for architecture x86_64.

This is most probably because you forgot to tell Xcode where GoogleMapsBase.framework or GooglePlaces.framework is or you did forget to download it altogether. Please follow the example instructions or the installation instructions.

How to use the value from GooglePlacesRow?

The value of a GooglePlacesRow is a GooglePlace which is an enum.

public enum GooglePlace {
    case userInput(value: String)
    case prediction(prediction: GMSAutocompletePrediction)
}

You can use switch to access the value:

switch row.value {
    case .userInput(let value):  
        print(value)  
    case .prediction(let prediction):  
        print(prediction.attributedPrimaryText)  
        print(prediction.attributedSecondaryText)  
        print(prediction.placeID)  
}

Future work

• Carthage compatibility
• Investigate automation of the installation process

Author

• Mathias Claassen (@mClaassen26) (@EurekaCommunity)

Change Log

This can be found in the CHANGELOG.md file.