Custom search box | Search SDK | iOS

ViewController

import UIKit
import MapboxSearch

class ContinuousSearchViewController: TextViewLoggerViewController {
    let searchEngine = SearchEngine()
    let textField = UITextField()
    let responseLabel = UILabel()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .white
        
        textField.borderStyle = .line
        textField.addTarget(self, action: #selector(textFieldTextDidChanged), for: .editingChanged)
        responseLabel.lineBreakMode = .byTruncatingMiddle
        
        view.addSubview(textField)
        view.addSubview(responseLabel)
        
        searchEngine.delegate = self
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
        textField.becomeFirstResponder()
    }
    
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        
        textField.frame = CGRect(x: 50, y: 100, width: view.bounds.width - 50*2, height: 32)
        responseLabel.frame = CGRect(x: 50, y: textField.frame.maxY + 16, width: view.bounds.width - 50*2, height: 32)
    }
}

extension ContinuousSearchViewController {
    @objc
    func textFieldTextDidChanged() {
        /// Update `SearchEngine.query` field as fast as you need. `SearchEngine` waits a short amount of time for the query string to optimize network usage.
        searchEngine.query = textField.text!
    }
}

extension ContinuousSearchViewController: SearchEngineDelegate {
    func suggestionsUpdated(suggestions: [SearchSuggestion], searchEngine: SearchEngine) {
        dumpSuggestions(suggestions, query: searchEngine.query)
    }
    
    func resultResolved(result: SearchResult, searchEngine: SearchEngine) {
        print("Dumping resolved result:", dump(result))
    }
    
    func searchErrorHappened(searchError: SearchError, searchEngine: SearchEngine) {
        print("Error during search: \(searchError)")
    }
}

TextViewLoggerViewController

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import UIKit
import MapboxSearch

class TextViewLoggerViewController: UIViewController, ExampleController {
    let responseTextView = UITextView()
    
    func logUI(_ message: String) {
        responseTextView.text = message
    }
    
    func dumpSuggestions(_ suggestions: [SearchSuggestion], query: String) {
        print("Number of search results: \(suggestions.count) for query: \(query)")
        let headerText = "query: \(query), count: \(suggestions.count)"
        
        let suggestionsLog = suggestions.map { suggestion in
            var suggestionString = "\(suggestion.name)"
            if let description = suggestion.descriptionText {
                suggestionString += "\n\tdescription: \(description)"
            } else if let address = suggestion.address?.formattedAddress(style: .medium) {
                suggestionString += "\n\taddress: \(address)"
            }
            if let distance = suggestion.distance {
                suggestionString += "\n\tdistance: \(Int(distance / 1000)) km"
            }
            return suggestionString + "\n"
        }.joined(separator: "\n")
        
        logUI(headerText + "\n\n" + suggestionsLog)
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        responseTextView.isEditable = false
        view.addSubview(responseTextView)
        
        addConstraints()
    }
    
    func addConstraints() {
        let textViewConstraints = [
            responseTextView.leadingAnchor.constraint(equalTo: view.layoutMarginsGuide.leadingAnchor),
            responseTextView.trailingAnchor.constraint(equalTo: view.layoutMarginsGuide.trailingAnchor),
            responseTextView.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor),
            responseTextView.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor, constant: 60)
        ]
        responseTextView.translatesAutoresizingMaskIntoConstraints = false
        
        NSLayoutConstraint.activate(textViewConstraints)
    }
}

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