Tracking Uninstalls

To let Singular track your app's uninstalls:

1. Make sure uninstall tracking is enabled for your app in Singular. See Setting Up iOS Install Tracking for instructions.
2. In the app, send Singular the device token returned from the Apple Push Notification Service (APNS). To pass the device token to Singular use the registerDeviceTokenForUninstall or registerDeviceToken method. Do this before the Singular StartSession call.

If your app doesn't support push notifications yet, see Apple's guide to implementing APNS.

NSString* apns = @"b0adf7c97302fb522debff5bfba010a9b052";
NSData* data = [apns dataUsingEncoding:NSUTF8StringEncoding];
[Singular registerDeviceTokenForUninstall:data];

Adding Global Properties

The Singular SDK lets you define custom additional properties that you want to send to the Singular servers with every session and event sent from the app. These properties can represent any information you want about the user, the app mode or status, or anything else. Once you set these properties, they are available as dimensions in your reports and you can use them to break down your data.

For example, if you have a gaming app, you can define a property called "Level" and set it initially to "0". Any session and event sent from the app will be sent with "Level": "0". Once the user levels up you reset the property to "1" and so on. You can then get your reports, including sessions, event counts, and revenue data, broken down by user level.

Setting Global Properties through SingularConfig

To set global properties before initializing the SDK, use the setGlobalProperty method in SingularConfig.

Note that since global properties and their values persist between app runs, the property that you are setting may already be set to a different value. Use the overrideExisting parameter to tell the SDK whether to override an existing property with the new value or not.

SingularConfig* config = SingularConfig* config = [[SingularConfig
alloc] initWithApiKey:apiKey andSecret:secretKey];
[config setGlobalProperty:@“example_key” withValue:@“example_value”
overrideExisting:NO];

[config setGlobalProperty:@“test_key” withValue:@“test_value”
overrideExisting:YES];
[Singular start:config];

Setting Global Properties After Initialization

Use the following methods to set, unset, and retrieve global properties at any time in the app's run.

BOOL result = [Singular setGlobalProperty:@“test_key” 
withValue:@“test_value” overrideExisting:YES];

NSDictionary* props = [Singular getGlobalProperties];

[Singular unsetGlobalProperty:“test_key”];

[Singular clearGlobalProperties];

Using the Singular SDK JavaScript Interface

Singular provides a JavaScript interface that you can use in order to call Singular from within javaScript code in your app.

For example, if you set up the JavaScript interface, you can send events to Singular from JavaScript code as follows:

Singular.event('event'); 
Singular.event('test', JSON.stringify({"a1":"bar",
    "a2":"boo", "a3":"baz"})); 

The interface supports the following SDK methods:

• setCustomUserID
• unsetCustomUserID
• event
• revenue

Enabling the JavaScript Interface

To enable the JavaScript interface when using WKWebView , you need to add some code to the webView method of the WKNavigationDelegate protocol (this protocol helps you implement custom behaviors triggered when a web view handles a navigation request).

Swift:

extension ViewController: WKNavigationDelegate { 
 func webView(_: WKWebView, decidePolicyFor: WKNavigationAction, 
    decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) { 

// Singular handler 
 let js = "typeof(Singular)" 
 webView.evaluateJavaScript(js) { (result, error) -> Void in 
     if let resultString = result as? String { 
         if resultString.isEqual("undefined") { 
         do { 
             let contents = try String(contentsOfFile: 
                 Bundle.main.path(forResource: "Singular", ofType: "js")!) 
         self.webView.evaluateJavaScript(contents, 
             completionHandler: nil) 
         } catch { 
         } 
     } 
                 else { 
                     print(decidePolicyFor.request) 
                     Singular.processJSRequestWK(self.webView, 
                         withURL:decidePolicyFor.request) 
                 } 
             }  
         } 
      
 // rest of your code goes here   
} 

If you are using the older UIWebView (deprecated in iOS 8.0), update the method webView:shouldStartLoadWithRequest:navigationType: in your UIWebViewDelegate file as follows:

Objective-C:

- (BOOL)webView:(UIWebView *)webView 
    shouldStartLoadWithRequest:(NSURLRequest *)request
    navigationType:(UIWebViewNavigationType)navigationType{ 
   if([[webView stringByEvaluatingJavaScriptFromString:@"typeof(Singular)"] isEqualToString:@"undefined"]) { 

   // Inject Singular.js into the HTML 
   [webView stringByEvaluatingJavaScriptFromString:[NSString
       stringWithContentsOfFile:[[NSBundle mainBundle] 
       pathForResource:@"Singular" ofType:@"js"] usedEncoding:nil error:nil]]; 
   } else { 
   // process request in Singular.js 
   [Singular processJSRequest:webView withURL:request]; 
   } 

   // The rest of your code goes here 

   return true; 
}

GDPR Compliance

The Singular SDK provides several methods to help you comply with GDPR policies and let Singular know about user consent or non-consent for tracking.

[Singular trackingOptIn];

Singular.trackingOptIn()

[Singular trackingUnder13];

Singular.trackingUnder13()

[Singular stopAllTracking];

Singular.stopAllTracking()

[Singular resumeAllTracking];

Singular.resumeAllTracking()

[Singular isAllTrackingStopped]; // returns true/false

Singular.isAllTrackingStopped() // returns true/false