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FirebaseAnalytics Framework Reference

FIRAnalytics


@interface FIRAnalytics : NSObject

The top level Firebase Analytics singleton that provides methods for logging events and setting user properties. See the developer guides for general information on using Firebase Analytics in your apps.

Note

The Analytics SDK uses SQLite to persist events and other app-specific data. Calling certain thread-unsafe global SQLite methods like sqlite3_shutdown() can result in unexpected crashes at runtime.

  • Logs an app event. The event can have up to 25 parameters. Events with the same name must have the same parameters. Up to 500 event names are supported. Using predefined events and/or parameters is recommended for optimal reporting.

    The following event names are reserved and cannot be used:

    • ad_activeview
    • ad_click
    • ad_exposure
    • ad_query
    • ad_reward
    • adunit_exposure
    • app_clear_data
    • app_exception
    • app_remove
    • app_store_refund
    • app_store_subscription_cancel
    • app_store_subscription_convert
    • app_store_subscription_renew
    • app_update
    • app_upgrade
    • dynamic_link_app_open
    • dynamic_link_app_update
    • dynamic_link_first_open
    • error
    • firebase_campaign
    • first_open
    • first_visit
    • in_app_purchase
    • notification_dismiss
    • notification_foreground
    • notification_open
    • notification_receive
    • os_update
    • session_start
    • session_start_with_rollout
    • user_engagement

    Declaration

    Objective-C

    + (void)logEventWithName:(nonnull NSString *)name
              parameters:(nullable NSDictionary<NSString *, id> *)parameters;

    Parameters

    name

    The name of the event. Should contain 1 to 40 alphanumeric characters or underscores. The name must start with an alphabetic character. Some event names are reserved. See FIREventNames.h for the list of reserved event names. The “firebase_”, “google_”, and “ga_” prefixes are reserved and should not be used. Note that event names are case-sensitive and that logging two events whose names differ only in case will result in two distinct events. To manually log screen view events, use the screen_view event name.
    parameters

    The dictionary of event parameters. Passing nil indicates that the event has no parameters. Parameter names can be up to 40 characters long and must start with an alphabetic character and contain only alphanumeric characters and underscores. Only String, Int, and Double parameter types are supported. String parameter values can be up to 100 characters long for standard Google Analytics properties, and up to 500 characters long for Google Analytics 360 properties. The “firebase_”, “google_”, and “ga_” prefixes are reserved and should not be used for parameter names.

  • Sets a user property to a given value. Up to 25 user property names are supported. Once set, user property values persist throughout the app lifecycle and across sessions.

    The following user property names are reserved and cannot be used:

    • first_open_time
    • last_deep_link_referrer
    • user_id

    Declaration

    Objective-C

    + (void)setUserPropertyString:(nullable NSString *)value
                      forName:(nonnull NSString *)name;

    Parameters

    value

    The value of the user property. Values can be up to 36 characters long. Setting the value to nil removes the user property.
    name

    The name of the user property to set. Should contain 1 to 24 alphanumeric characters or underscores and must start with an alphabetic character. The “firebase_”, “google_”, and “ga_” prefixes are reserved and should not be used for user property names.

  • Sets the user ID property. This feature must be used in accordance with Google’s Privacy Policy

    Declaration

    Objective-C

    + (void)setUserID:(nullable NSString *)userID;

    Parameters

    userID

    The user ID to ascribe to the user of this app on this device, which must be non-empty and no more than 256 characters long. Setting userID to nil removes the user ID.

  • Sets whether analytics collection is enabled for this app on this device. This setting is persisted across app sessions. By default it is enabled.

    Declaration

    Objective-C

    + (void)setAnalyticsCollectionEnabled:(BOOL)analyticsCollectionEnabled;

    Parameters

    analyticsCollectionEnabled

    A flag that enables or disables Analytics collection.

  • Sets the interval of inactivity in seconds that terminates the current session. The default value is 1800 seconds (30 minutes).

    Declaration

    Objective-C

    + (void)setSessionTimeoutInterval:(NSTimeInterval)sessionTimeoutInterval;

    Parameters

    sessionTimeoutInterval

    The custom time of inactivity in seconds before the current session terminates.

  • Asynchronously retrieves the identifier of the current app session.

    The session ID retrieval could fail due to Analytics collection disabled, app session expired, etc.

    Declaration

    Objective-C

    + (void)sessionIDWithCompletion:
    (nonnull void (^)(int64_t, NSError *_Nullable))completion;

    Parameters

    completion

    The completion handler to call when the session ID retrieval is complete. This handler is executed on a system-defined global concurrent queue. This completion handler takes the following parameters: sessionID The identifier of the current app session. The value is undefined if the request failed. error An error object that indicates why the request failed, or nil if the request was successful.

  • Returns the unique ID for this instance of the application or nil if ConsentType.analyticsStorage has been set to ConsentStatus.denied.

    See

    FIRAnalytics+Consent.h

    Declaration

    Objective-C

    + (nullable NSString *)appInstanceID;

  • Clears all analytics data for this instance from the device and resets the app instance ID.

    Declaration

    Objective-C

    + (void)resetAnalyticsData;

  • Adds parameters that will be set on every event logged from the SDK, including automatic ones. The values passed in the parameters dictionary will be added to the dictionary of default event parameters. These parameters persist across app runs. They are of lower precedence than event parameters, so if an event parameter and a parameter set using this API have the same name, the value of the event parameter will be used. The same limitations on event parameters apply to default event parameters.

    Declaration

    Objective-C

    + (void)setDefaultEventParameters:
    (nullable NSDictionary<NSString *, id> *)parameters;

    Parameters

    parameters

    Parameters to be added to the dictionary of parameters added to every event. They will be added to the dictionary of default event parameters, replacing any existing parameter with the same name. Valid parameters are String, Int, and Double. Setting a key’s value to NSNull() will clear that parameter. Passing in a nil dictionary will clear all parameters.

  • Unavailable

    Unavailable.

    Declaration

    Objective-C

    - (nonnull instancetype)init;

AppDelegate

  • Handles events related to a URL session that are waiting to be processed.

    1. If SwiftUI lifecycle is adopted, call this method from UIApplicationDelegate.application(_:handleEventsForBackgroundURLSession:completionHandler:) in your app delegate.

    2. If SwiftUI lifecycle is not adopted, Firebase Analytics does not require delegation implementation from the AppDelegate. If you choose instead to delegate manually, you can set FirebaseAppDelegateProxyEnabled to boolean NO in your app’s Info.plist and call this method from UIApplicationDelegate.application(_:handleEventsForBackgroundURLSession:completionHandler:) in your app delegate.

    Declaration

    Objective-C

    + (void)handleEventsForBackgroundURLSession:(nonnull NSString *)identifier
                          completionHandler:
                              (nullable void (^)(void))completionHandler;

    Parameters

    identifier

    The identifier of the URL session requiring attention.
    completionHandler

    The completion handler to call when you finish processing the events. Calling this completion handler lets the system know that your app’s user interface is updated and a new snapshot can be taken.

  • Handles the event when the app is launched by a URL (custom URL scheme or universal link).

    1. If SwiftUI lifecycle is adopted, use onOpenURL(perform:) to register a handler and call this method in the handler.

    2. If UIScene lifecycle is adopted, call this method from UISceneDelegate.scene(_:willConnectTo:options:) and UISceneDelegate.scene(_:openURLContexts:) when the URL contexts are available.

    3. If neither SwiftUI nor UIScene lifecycle is adopted, Firebase Analytics does not require delegation implementation from the AppDelegate. If you choose instead to delegate manually, you can set FirebaseAppDelegateProxyEnabled to boolean NO in your app’s Info.plist and call this method from UIApplicationDelegate.application(_:open:options:) in your app delegate.

    Declaration

    Objective-C

    + (void)handleOpenURL:(nonnull NSURL *)url;

    Parameters

    url

    The URL resource to open. This resource can be a network resource or a file.

  • Handles the event when the app receives data associated with user activity that includes a Universal Link.

    1. If SwiftUI lifecycle is adopted, use onOpenURL(perform:) to register a handler and call Analytics.handleOpen(_:) instead in the handler.

    2. If UIScene lifecycle is adopted, call this method from UISceneDelegate.scene(_:willConnectTo:options:) and UISceneDelegate.scene(_:continue:) when NSUserActivity is available. See the Apple doc for more details.

    3. If neither SwiftUI nor UIScene lifecycle is adopted, Firebase Analytics does not require delegation implementation from the AppDelegate. If you choose instead to delegate manually, you can set FirebaseAppDelegateProxyEnabled to boolean NO in your app’s Info.plist and call this method from UIApplication.application(_:continue:restorationHandler:) in your app delegate.

    Declaration

    Objective-C

    + (void)handleUserActivity:(nonnull id)userActivity;

    Parameters

    userActivity

    The activity object containing the data associated with the task the user was performing.

  • Sets the applicable end user consent state (e.g. for device identifiers) for this app on this device. Use the consent settings to specify individual consent type values. Settings are persisted across app sessions. By default consent types are set to ConsentStatus.granted.

    Declaration

    Objective-C

    + (void)setConsent:
    (nonnull NSDictionary<FIRConsentType, FIRConsentStatus> *)consentSettings;

    Parameters

    consentSettings

    A Dictionary of consent types. Supported consent type keys are ConsentType.adStorage, ConsentType.analyticsStorage, ConsentType.adUserData, and ConsentType.adPersonalization. Valid values are ConsentStatus.granted and ConsentStatus.denied.

OnDevice