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121 lines
4.2 KiB
121 lines
4.2 KiB
////////////////////////////////////////////////////////////////////////////
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//
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// Copyright 2014 Realm Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////
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import UIKit
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import RealmSwift
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class RepositoriesViewController: UICollectionViewController, UITextFieldDelegate {
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@IBOutlet weak var sortOrderControl: UISegmentedControl!
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@IBOutlet weak var searchField: UITextField!
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var results: Results<Repository>?
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var token: NotificationToken?
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deinit {
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token?.invalidate()
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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let realm = try! Realm()
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token = realm.observe { [weak self] notification, realm in
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self?.reloadData()
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}
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var components = URLComponents(string: "https://api.github.com/search/repositories")!
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components.queryItems = [
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URLQueryItem(name: "q", value: "language:objc"),
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URLQueryItem(name: "sort", value: "stars"),
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URLQueryItem(name: "order", value: "desc")
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]
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URLSession.shared.dataTask(with: URLRequest(url: components.url!)) { data, response, error in
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if let error = error {
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print(error)
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return
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}
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do {
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let repositories = try JSONSerialization.jsonObject(with: data!, options: []) as! [String: AnyObject]
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let items = repositories["items"] as! [[String: AnyObject]]
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let realm = try Realm()
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try realm.write {
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for item in items {
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let repository = Repository()
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repository.identifier = String(item["id"] as! Int)
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repository.name = item["name"] as? String
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repository.avatarURL = item["owner"]!["avatar_url"] as? String;
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realm.add(repository, update: true)
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}
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}
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} catch {
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print(error.localizedDescription)
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}
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}.resume()
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}
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override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
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return results?.count ?? 0
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}
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override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
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let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! RepositoryCell
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let repository = results![indexPath.item];
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cell.titleLabel.text = repository.name
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URLSession.shared.dataTask(with: URLRequest(url: URL(string: repository.avatarURL!)!)) { (data, response, error) -> Void in
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if let error = error {
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print(error.localizedDescription)
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return
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}
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DispatchQueue.main.async {
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let image = UIImage(data: data!)!
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cell.avatarImageView!.image = image
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}
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}.resume()
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return cell
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}
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func reloadData() {
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let realm = try! Realm()
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results = realm.objects(Repository.self)
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if let text = searchField.text, !text.isEmpty {
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results = results?.filter("name contains[c] %@", text)
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}
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results = results?.sorted(byKeyPath: "name", ascending: sortOrderControl!.selectedSegmentIndex == 0)
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collectionView?.reloadData()
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}
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@IBAction func valueChanged(sender: AnyObject) {
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reloadData()
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}
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@IBAction func clearSearchField(sender: AnyObject) {
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searchField.text = nil
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reloadData()
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}
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func textFieldDidEndEditing(_ textField: UITextField) {
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reloadData()
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}
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}
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