1+ using System ;
2+ using System . Collections . Generic ;
3+ using CoreGraphics ;
4+ using System . Linq ;
5+ using UIKit ;
6+ using Foundation ;
7+
8+ namespace Cloud
9+ {
10+ /// <summary>
11+ /// View containing Buttons and TextView to show off the samples
12+ /// </summary>
13+ public class KeyValueViewController : UIViewController
14+ {
15+ UIButton saveButton , reloadButton , clearButton ;
16+ UITextView localText , testText , outputText ;
17+ UILabel localLabel , testLabel , keyLabel , valueLabel ;
18+
19+ string sharedKeyName = "Shared" ;
20+
21+ public override void ViewDidLoad ( )
22+ {
23+ base . ViewDidLoad ( ) ;
24+
25+ #region UI Layout
26+ // Create the buttons and TextView to run the sample code
27+ saveButton = UIButton . FromType ( UIButtonType . RoundedRect ) ;
28+ saveButton . Frame = new CGRect ( 10 , 120 , 90 , 50 ) ;
29+ saveButton . SetTitle ( "Save" , UIControlState . Normal ) ;
30+
31+ reloadButton = UIButton . FromType ( UIButtonType . RoundedRect ) ;
32+ reloadButton . Frame = new CGRect ( 110 , 120 , 90 , 50 ) ;
33+ reloadButton . SetTitle ( "Reload" , UIControlState . Normal ) ;
34+
35+ clearButton = UIButton . FromType ( UIButtonType . RoundedRect ) ;
36+ clearButton . Frame = new CGRect ( 210 , 120 , 90 , 50 ) ;
37+ clearButton . SetTitle ( "Clear" , UIControlState . Normal ) ;
38+
39+ outputText = new UITextView ( new CGRect ( 10 , 180 , 300 , 270 ) ) ;
40+ //outputText.BackgroundColor = UIColor.FromRGB(224,255,255);
41+ outputText . Editable = false ;
42+ outputText . ScrollEnabled = true ;
43+
44+ localText = new UITextView ( new CGRect ( 130 , 40 , 150 , 30 ) ) ;
45+ localText . BackgroundColor = UIColor . FromRGB ( 224 , 255 , 255 ) ;
46+ testText = new UITextView ( new CGRect ( 130 , 80 , 150 , 30 ) ) ;
47+ testText . BackgroundColor = UIColor . FromRGB ( 224 , 255 , 255 ) ;
48+
49+ localLabel = new UILabel ( new CGRect ( 10 , 40 , 100 , 30 ) ) ;
50+ localLabel . Text = UIDevice . CurrentDevice . Name + ":" ;
51+ testLabel = new UILabel ( new CGRect ( 10 , 80 , 100 , 30 ) ) ;
52+ testLabel . Text = "Shared:" ;
53+ keyLabel = new UILabel ( new CGRect ( 10 , 10 , 200 , 30 ) ) ;
54+ keyLabel . Text = "KEY" ;
55+ valueLabel = new UILabel ( new CGRect ( 150 , 10 , 200 , 30 ) ) ;
56+ valueLabel . Text = "VALUE" ;
57+
58+ // Add the controls to the view
59+ this . Add ( saveButton ) ;
60+ this . Add ( reloadButton ) ;
61+ this . Add ( clearButton ) ;
62+ this . Add ( outputText ) ;
63+ Add ( testText ) ;
64+ Add ( localText ) ;
65+ Add ( localLabel ) ;
66+ Add ( testLabel ) ;
67+ Add ( keyLabel ) ;
68+ Add ( valueLabel ) ;
69+ #endregion
70+
71+ // Wire up the buttons to the SamplCode class methods
72+ saveButton . TouchUpInside += Save ;
73+
74+ reloadButton . TouchUpInside += Reload ;
75+
76+ clearButton . TouchUpInside += Clear ;
77+ }
78+
79+ // saves the inputs to iCloud keys
80+ void Save ( object sender , EventArgs ea ) {
81+ var store = NSUbiquitousKeyValueStore . DefaultStore ;
82+ store . SetString ( UIDevice . CurrentDevice . Name , localText . Text ) ;
83+ store . SetString ( sharedKeyName , testText . Text ) ;
84+ var synchronized = store . Synchronize ( ) ;
85+ outputText . Text += String . Format ( "\n --- Local save ({4}) ---\n {0}: {1}\n {2}: {3}"
86+ , UIDevice . CurrentDevice . Name , localText . Text
87+ , sharedKeyName , testText . Text
88+ , synchronized ) ;
89+
90+ localText . ResignFirstResponder ( ) ;
91+ testText . ResignFirstResponder ( ) ;
92+ }
93+ // loads the inputs from iCloud keys
94+ void Reload ( object sender , EventArgs ea ) {
95+ var store = NSUbiquitousKeyValueStore . DefaultStore ;
96+ var synchronized = store . Synchronize ( ) ;
97+
98+ testText . Text = store . GetString ( sharedKeyName ) ;
99+ localText . Text = store . GetString ( UIDevice . CurrentDevice . Name ) ;
100+
101+ outputText . Text += String . Format ( "\n --- Reload ({4}) ---\n {0}: {1}\n {2}: {3}"
102+ , UIDevice . CurrentDevice . Name , localText . Text
103+ , sharedKeyName , testText . Text
104+ , synchronized ) ;
105+
106+ localText . ResignFirstResponder ( ) ;
107+ testText . ResignFirstResponder ( ) ;
108+ }
109+ // clears the iCloud keys
110+ void Clear ( object sender , EventArgs e ) {
111+ var store = NSUbiquitousKeyValueStore . DefaultStore ;
112+ store . Remove ( UIDevice . CurrentDevice . Name ) ;
113+ store . Remove ( sharedKeyName ) ;
114+
115+ var synchronized = store . Synchronize ( ) ;
116+ outputText . Text += String . Format ( "\n --- Clear ({4}) ---\n {0}: {1}\n {2}: {3}"
117+ , UIDevice . CurrentDevice . Name , "<cleared>"
118+ , sharedKeyName , "<cleared>"
119+ , synchronized ) ;
120+ localText . ResignFirstResponder ( ) ;
121+ testText . ResignFirstResponder ( ) ;
122+ }
123+
124+ // notification when Key-Value changes are triggered by server
125+ NSObject keyValueNotification ;
126+
127+ // register for the notification when iCloud keys are changed
128+ public override void ViewWillAppear ( bool animated )
129+ {
130+ base . ViewWillAppear ( animated ) ;
131+
132+ Reload ( null , null ) ;
133+
134+ keyValueNotification =
135+ NSNotificationCenter . DefaultCenter . AddObserver (
136+ NSUbiquitousKeyValueStore . DidChangeExternallyNotification
137+ , delegate ( NSNotification n )
138+ {
139+ Console . WriteLine ( "Cloud notification received" ) ;
140+ NSDictionary userInfo = n . UserInfo ;
141+
142+ NSNumber reasonNumber = ( NSNumber ) userInfo . ObjectForKey ( NSUbiquitousKeyValueStore . ChangeReasonKey ) ;
143+ nint reason = reasonNumber . NIntValue ;
144+
145+ //Console.WriteLine("reason.IntValue: " + ireason);
146+ //Console.WriteLine("reason (enum): " + (NSUbiquitousKeyValueStoreChangeReason)ireason);
147+
148+ NSArray changedKeys = ( NSArray ) userInfo . ObjectForKey ( NSUbiquitousKeyValueStore . ChangedKeysKey ) ;
149+ var changedKeysList = new List < string > ( ) ;
150+ for ( uint i = 0 ; i < changedKeys . Count ; i ++ )
151+ {
152+ var key = changedKeys . GetItem < NSString > ( i ) ; // resolve key to a string
153+
154+ //Console.WriteLine("changedKey IntPtr: " + changedKeys.ValueAt(i));
155+ //Console.WriteLine("changedKey (value): " + key);
156+
157+ changedKeysList . Add ( key ) ;
158+ }
159+
160+ var store = NSUbiquitousKeyValueStore . DefaultStore ;
161+ store . Synchronize ( ) ;
162+ // now do something with the list...
163+ InvokeOnMainThread ( ( ) => {
164+ outputText . Text += "\n --- Cloud Notification \uE049 \uE049 \uE049 ---" ;
165+ foreach ( var k in changedKeysList ) {
166+ outputText . Text += String . Format ( "\n {0}: {1}" , k , store . GetString ( k ) ) ;
167+ }
168+ testText . Text = store . GetString ( sharedKeyName ) ;
169+ localText . Text = store . GetString ( UIDevice . CurrentDevice . Name ) ;
170+ } ) ;
171+ } ) ;
172+ }
173+
174+ // remove notification observer
175+ public override void ViewWillDisappear ( bool animated )
176+ {
177+ base . ViewWillDisappear ( animated ) ;
178+ if ( keyValueNotification != null )
179+ NSNotificationCenter . DefaultCenter . RemoveObserver ( keyValueNotification ) ;
180+ }
181+ }
182+ }
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