88
99import UIKit
1010
11- class mainTableViewController : UITableViewController {
11+ class mainTableViewController : UITableViewController , UITextFieldDelegate {
1212
13- let calculatorCurrencyIdentifier = " Calculator_Currency "
13+ //MARK: - property
1414
15+ let calculatorCurrencyIdentifier = " Calculator_Currency "
16+ var notificationCenter : NSNotificationCenter = NSNotificationCenter . defaultCenter ( )
1517 var currencyItemsList : NSMutableArray = [ ]
1618
19+ var selectedRow = - 1
20+ var selectedRow_Currency : CurrencyItem !
21+ var baseMoneyInUSD : Float !
22+
23+
1724 override func viewDidLoad( ) {
1825 super. viewDidLoad ( )
1926
@@ -23,11 +30,13 @@ class mainTableViewController: UITableViewController {
2330 let currencyItem_USD : CurrencyItem = CurrencyItem ( flatName: " US " , shortName: " USD " , fullName: " 美元 " , price: 1.00 )
2431 currencyItemsList. addObject ( currencyItem_USD)
2532
26- let currencyItem_EUR : CurrencyItem = CurrencyItem ( flatName: " EU " , shortName: " EUR " , fullName: " 欧元 " , price: 1.09 )
33+ let currencyItem_EUR : CurrencyItem = CurrencyItem ( flatName: " EU " , shortName: " EUR " , fullName: " 欧元 " , price: 0.9 )
2734 currencyItemsList. addObject ( currencyItem_EUR)
2835
2936 }
3037
38+ //MARK: - tableViewDelegate
39+
3140 override func tableView( tableView: UITableView , numberOfRowsInSection section: Int ) -> Int {
3241 return currencyItemsList. count
3342 }
@@ -40,14 +49,20 @@ class mainTableViewController: UITableViewController {
4049 let cell = tableView. dequeueReusableCellWithIdentifier ( calculatorCurrencyIdentifier, forIndexPath: indexPath) as! UITableViewCell
4150 var currencyForCell = currencyItemsList. objectAtIndex ( indexPath. row) as! CurrencyItem
4251
43-
4452 var shortName = cell. viewWithTag ( 200 ) as! UILabel
4553 shortName. text = currencyForCell. currencyShortName
4654
4755 var fullName = cell. viewWithTag ( 300 ) as! UILabel
4856 fullName. text = currencyForCell. currencyFullName
4957
50- print ( fullName)
58+ var textField = cell. viewWithTag ( 400 ) as! UITextField
59+
60+ if selectedRow > - 1 && selectedRow <= currencyItemsList. count {
61+ textField. text = String ( format: " %.2f " , currencyForCell. valueForTextField)
62+ } else {
63+ textField. text = " 0.0 "
64+ }
65+ textField. sizeToFit ( )
5166
5267 return cell
5368 }
@@ -59,14 +74,48 @@ class mainTableViewController: UITableViewController {
5974 }
6075
6176 override func tableView( tableView: UITableView , didSelectRowAtIndexPath indexPath: NSIndexPath ) {
62- tableView. deselectRowAtIndexPath ( indexPath, animated: true )
6377
64- let cell = tableView. dequeueReusableCellWithIdentifier ( calculatorCurrencyIdentifier, forIndexPath: indexPath) as! UITableViewCell
78+ selectedRow = indexPath. row
79+
80+ let cell : UITableViewCell = tableView. cellForRowAtIndexPath ( indexPath) !
6581 var textField = cell. viewWithTag ( 400 ) as! UITextField
82+ textField. placeholder = " 100 "
83+ textField. text = " \( 100 ) "
84+
85+ refreshTabelViewCell ( textField)
86+
6687 textField. becomeFirstResponder ( )
88+
89+ notificationCenter. addObserver ( self , selector: " textField_Value_Changed: " , name: UITextFieldTextDidChangeNotification, object: textField)
90+
91+ tableView. deselectRowAtIndexPath ( indexPath, animated: true )
6792 }
6893
6994 override func tableView( tableView: UITableView , heightForRowAtIndexPath indexPath: NSIndexPath ) -> CGFloat {
7095 return 85
7196 }
97+
98+ //MARK: - custom function
99+
100+ func refreshTabelViewCell( textField: UITextField ) {
101+ selectedRow_Currency = currencyItemsList. objectAtIndex ( selectedRow) as! CurrencyItem
102+ selectedRow_Currency. valueForTextField = ( textField. text as NSString ) . floatValue
103+ print ( " textField text is \( selectedRow_Currency. valueForTextField) " )
104+ baseMoneyInUSD = selectedRow_Currency. valueForTextField / selectedRow_Currency. currencyPrice
105+
106+ for i in 0 ..< currencyItemsList. count {
107+ var currencyItem = currencyItemsList. objectAtIndex ( i) as! CurrencyItem
108+ if i != selectedRow {
109+ currencyItem. valueForTextField = baseMoneyInUSD * currencyItem. currencyPrice
110+ let indexPath : NSIndexPath = NSIndexPath ( forRow: i, inSection: 0 )
111+ self . tableView. reloadRowsAtIndexPaths ( [ indexPath] , withRowAnimation: UITableViewRowAnimation . None)
112+ }
113+ }
114+ }
115+
116+ func textField_Value_Changed( notification: NSNotification ) {
117+ var textField : UITextField = notification. object as! UITextField
118+ refreshTabelViewCell ( textField)
119+ }
120+
72121}
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