Monthly Archives: November 2016

Picker View

Picker View,

Picker View

/* here shows how PickerView works. can change background color by selecting on pickerView  */

// Attach Outlets -> dataSource and delegate with view-controller

screen-shot-2016-11-20-at-12-42-14-am

// Created by Nazmul Hasan on 11/19/16.


import UIKit

class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
 
 let moodArray = ["happy","good","better","bad","sad","well","red","green","great","pretty","yellow","nice","cyan","beautiful"]
 
 func numberOfComponents(in pickerView: UIPickerView) -> Int {
 return 1 // indicate pickerView list
 }
 func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
 return moodArray.count   // indicate row list
 }
 func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
 return moodArray[row]    // indicate array print system
 }
 func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
 // it makes background color according to select in row
 
 var newBackGroundColor : UIColor
 
 switch row {
 case 5,8,9,11,13:
 newBackGroundColor = UIColor.lightGray
 case 0...4:
 newBackGroundColor = UIColor.darkGray
 case 6:
 newBackGroundColor = UIColor.red
 case 7:
 newBackGroundColor = UIColor.green
 case 10:
 newBackGroundColor = UIColor.yellow
 case 12:
 newBackGroundColor = UIColor.cyan
 
 default:
 newBackGroundColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
 }
 self.view.backgroundColor = newBackGroundColor 
// view indicate background
 
 }
 
 override func viewDidLoad() {
 super.viewDidLoad()
 // Do any additional setup after loading the view, typically from a nib.
 }

 override func didReceiveMemoryWarning() {
 super.didReceiveMemoryWarning()
 // Dispose of any resources that can be recreated.
 }

}

Time Display

Time Display 
// Created by Azmal Hossain on 11/17/16.
import UIKit

class ViewController: UIViewController{
 
@IBOutlet weak var displayTimeLabel: UILabel!

// @IBAction func refreshButton(_ sender: UIButton){
 @IBAction func refreshButton(_ sender: AnyObject) {
 let now = NSDate()
 let formatter = DateFormatter()
 formatter.dateFormat = "HH:mm:s a"  //HH-mm-s this way also can
 
 displayTimeLabel.text = formatter.string(from: now as Date)
 
}
 
 override func viewDidLoad() {
 super.viewDidLoad()
 // Do any additional setup after loading the view, typically from a nib.
 }

 override func didReceiveMemoryWarning() {
 super.didReceiveMemoryWarning()
 // Dispose of any resources that can be recreated.
 }
}

Keyboard, textField and label disappear

Keyboard, textField and label disappear, , 
import UIKit

class ViewController: UIViewController, UITextFieldDelegate {
 
 func textFieldShouldReturn(_ textField: UITextField) -> Bool {
 textField.resignFirstResponder()
 return false
 }
 @IBOutlet weak var writeYouNameTextField: UITextField!
 
 @IBOutlet weak var displayLabel: UILabel!
 
 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
 self.view.endEditing(true)
 }
 
@IBAction func enterButton(_ sender: UIButton) {
 displayLabel.text = "hello " + writeYouNameTextField.text! + "!"
 self.writeYouNameTextField.resignFirstResponder()
 writeYouNameTextField.text = ""
 }

 override func viewDidLoad() {
 super.viewDidLoad()
 // Do any additional setup after loading the view, typically from a nib.
 }

 override func didReceiveMemoryWarning() {
 super.didReceiveMemoryWarning()
 // Dispose of any resources that can be recreated.
 }
}

Label

Label

Label
Display text, two type of label have. Normal display label after click Button display label.
as yahoo and Google is normal Display, this code must have to put in button funtion

CustomLabelName.text

after click button display
CustomLabelName.text = “hello ” + CustomTextFieldName.text + “!”