core data fetch request swiftui

Rohan Patel answered on August 10, 2022 Popularity 8/10 Helpfulness 4/10

answer core data fetch request swiftui

related core data fetch request swiftui

related api fetchData in swift

core data fetch request swiftui

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@Environment(\.managedObjectContext) var viewContext
/* This is for implmentation in swiftui
Attach this to your main app view: (yourNameApp.swift) where ContentView() is called
            .environment(\.managedObjectContext, persistenceController.container.viewContext)
At the head of this view also attach:
			var persistenceController = PersistenceController.shared

*/
@discardableResult func fetchItems() -> [Item] {
	var items: [Item] = []
  	let fetchRequest: NSFetchRequest<Item>
  	fetchRequest = Item.fetchRequest()
  	do {
    	items = try self.viewContext.fetch(fetchRequest)
    } catch {
      	print("Error fetching items from core data")
    }
  	return items
}

Popularity 8/10 Helpfulness 4/10 Language swift

Source: Grepper

Tags: core-data fetch request swift swiftui

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Contributed on Aug 10 2022

Rohan Patel

0 Answers Avg Quality 2/10

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core data fetch request swiftui

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// For this example, the name of my Core Data Entity is 'TaskItem'
// This can be placed in any SwiftUI View Struct to declare a variable array of your core data entries that automatically refreshes on changes to the core data model
@FetchRequest(
    sortDescriptors: [
        NSSortDescriptor(keyPath: \TaskItem.dueTime, ascending: true),
        NSSortDescriptor(keyPath: \TaskItem.complete, ascending: true)
    ],
    predicate: NSCompoundPredicate(andPredicateWithSubpredicates: [NSPredicate(format: "%K >= %@", #keyPath(TaskItem.dueTime), todayDateFrom! as NSDate)]),
    animation: .default
	) var tasks: FetchedResults<TaskItem>

Popularity 9/10 Helpfulness 5/10 Language swift

Source: Grepper

Tags: core-data core

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Contributed on Aug 10 2022

Rohan Patel

0 Answers Avg Quality 2/10

api fetchData in swift

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import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var mySearchBar: UISearchBar!
    @IBOutlet weak var myTableView: UITableView!
    
    var array_Data = [ToDo]()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
//        MARK: Private mathode call
        
        setuptableView()
        fetchingAPIData()
        
       
    }
//  MARK: Private mathode

    func setuptableView(){
        let nib = UINib(nibName: "SearchTableViewCell", bundle: nil)
        myTableView.register(nib, forCellReuseIdentifier: "cell")
    }
    
    
    func fetchingAPIData() {
        
        let url = URL(string: "https://api.opendota.com/api/heroStats")
        let task = URLSession.shared.dataTask(with: url!, completionHandler: { (data,response,error) in
            guard let data = data, error == nil else {
                print("Error occured while accessing data")
                return
            }
            do {
                self.array_Data = try JSONDecoder().decode([ToDo].self, from: data)
            }
            catch {
                print("Error while Decoding JSON data info Swift structure\(error)")
            }
            DispatchQueue.main.async {
                self.search_Data = self.array_Data
                self.myTableView.reloadData()
            }
            
        })
        task.resume()
        
    }
    
}

// Second Step: 


import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var tableView2: UITableView!
    
    var AllData = [dataModel]()
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        tableViewSetup()
        fetchingAPIData()

    }
    
    func tableViewSetup() {
        let nib = UINib(nibName: "APIDataTableViewCell", bundle: nil)
        tableView2.register(nib, forCellReuseIdentifier: "cell")
    }
    //  MARK: Private mathode

        
    func fetchingAPIData() {
        
        let url = URL(string: "https://jsonplaceholder.typicode.com/posts")
        let task = URLSession.shared.dataTask(with: url!, completionHandler: { (data,response,error) in
            guard let data = data, error == nil else {
                print("Error occured while accessing data")
                return
            }
            do {
                self.AllData = try JSONDecoder().decode([dataModel].self, from: data)
            }
            catch {
                print("Error while Decoding JSON data info Swift structure\(error)")
            }
            DispatchQueue.main.async {
                self.tableView2.reloadData()
            }
            
        })
        task.resume()
        
    }
}

extension ViewController: UITableViewDataSource {
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        AllData.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView2.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! APIDataTableViewCell
        cell.configure(alldata: AllData[indexPath.row])
        
        return cell
    }
    
    
    
    
}

extension ViewController: UITableViewDelegate {
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 100
    }
    
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let st = UIStoryboard(name: "Main", bundle: nil)
        let vc = st.instantiateViewController(withIdentifier: "DataPassViewController") as! DataPassViewController
        vc.idd = AllData[indexPath.row].id!
        vc.useridd = AllData[indexPath.row].userID!
        vc.titleText = AllData[indexPath.row].title!
        vc.bodyText = AllData[indexPath.row].body!
        self.navigationController?.pushViewController(vc, animated: true)
    }
}

Popularity 10/10 Helpfulness 2/10 Language swift

Source: Grepper

Tags: api

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Contributed on Dec 10 2022

Murad_9288

0 Answers Avg Quality 2/10

core data fetch request swiftui

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