Add FIREventScreenView and params

PiperOrigin-RevId: 321183165

Author: Googler

analytics/ios_headers/FIREventNames.h

@@ -263,6 +263,15 @@ static NSString *const kFIREventPurchaseRefund NS_SWIFT_NAME(AnalyticsEventPurch
 static NSString *const kFIREventRemoveFromCart NS_SWIFT_NAME(AnalyticsEventRemoveFromCart) =
     @"remove_from_cart";
 
+/// Screen View event. This event signifies a screen view. Use this when a screen transition occurs.
+/// This event can be logged irrespective of whether automatic screen tracking is enabled. Params:
+///
+/// <ul>
+///     <li>@c kFIRParameterScreenClass (NSString) (optional)</li>
+///     <li>@c kFIRParameterScreenName (NSString) (optional)</li>
+/// </ul>
+static NSString *const kFIREventScreenView NS_SWIFT_NAME(AnalyticsEventScreenView) = @"screen_view";
+
 /// Search event. Apps that support search features can use this event to contextualize search
 /// operations by supplying the appropriate, corresponding parameters. This event can help you
 /// identify the most popular content in your app. Params:

analytics/ios_headers/FIRParameterNames.h

@@ -385,6 +385,26 @@ static NSString *const kFIRParameterQuantity NS_SWIFT_NAME(AnalyticsParameterQua
 /// </pre>
 static NSString *const kFIRParameterScore NS_SWIFT_NAME(AnalyticsParameterScore) = @"score";
 
+/// Current screen class, such as the class name of the UIViewController, logged with screen_view
+/// event and added to every event (NSString). <pre>
+///     NSDictionary *params = @{
+///       kFIRParameterScreenClass : @"LoginViewController",
+///       // ...
+///     };
+/// </pre>
+static NSString *const kFIRParameterScreenClass NS_SWIFT_NAME(AnalyticsParameterScreenClass) =
+    @"screen_class";
+
+/// Current screen name, such as the name of the UIViewController, logged with screen_view event and
+/// added to every event (NSString). <pre>
+///     NSDictionary *params = @{
+///       kFIRParameterScreenName : @"LoginView",
+///       // ...
+///     };
+/// </pre>
+static NSString *const kFIRParameterScreenName NS_SWIFT_NAME(AnalyticsParameterScreenName) =
+    @"screen_name";
+
 /// The search string/keywords used (NSString).
 /// <pre>
 ///     NSDictionary *params = @{