This document provides an oveview of screens and how to measure screen views using the Google Analytics SDK for iOS v2.
Overview
Screens in Google Analytics represent content users are viewing within your app. The equivalent concept in web analytics is a pageview. Measuring screen views allows you to see which content is being viewed most by your users, and how are they are navigating between different pieces of content.
A screen view consists of a single string
field that will
be used as the screen name in your Google Analytics reports.
Screen view data is used primarily in the following Google Analytics reports:
- Screens report
- Engagement Flow
- Goal Flow
Implementation
The following sections will show you how to implement manual and automatic
screen measurement. Using automatic screen measurement allows you to quickly
implement screen measurement across all of your app's views
, while
manual screen measurement can also be used if you want to send additional
screen views to Google Analytics.
Automatic Screen Measurement
You can automatically measure views as screens using the
GAITrackedViewController
class. Have each of your view controllers
extend GAITrackedViewController
, a convenience class that extends
UIViewController
, and provide the view name to give to the view
controllers in your reports.
For example, suppose you have an "About" view that you want to measure with a view controller header that looks like this:
@interface AboutViewController : UIViewController
You would update this header to say:
#import "GAITrackedViewController.h" @interface AboutViewController : GAITrackedViewController
You must also provide the view name to be used in your Google Analytics
reports. A good place to put this is the view controller's
initializer method, if you have one, or the viewDidAppear:
method:
- (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; self.trackedViewName = @"About Screen"; }
As long as trackedViewName
is set before sendView:
is called, automatic view measurement will take place. Whenever the view
appears, a call to sendView:
with the provided view name will be
generated.
Manual Screen Measurement
To manually send a screen view, call sendView:
as in the
following example:
[tracker sendView:@"Home Screen"];