GrowingAnalytics源码阅读-初始化

GrowingAnalytics

Github地址 : https://github.com/growingio/growingio-sdk-ios-autotracker

源码

GrowingAppLifecycleDelegate源码实现

相关类

• GrowingDynamicProxy
• GrowingAutotracker
• GrowingRealTracker
• GrowingRealAutotracker
• GrowingTrackConfiguration
• GrowingAutotrackConfiguration

从代码开始

   //1.声明一个GrowingTrackConfiguration示例对象。
  // 2. GrowingAutotracker执行startWithConfiguration方法。
    GrowingTrackConfiguration *configuration = [GrowingTrackConfiguration configurationWithProjectId:@"aaaa"];
    [GrowingAutotracker startWithConfiguration:configuration launchOptions:nil];

GrowingTrackConfiguration

// 项目projectId
@property(nonatomic, copy, readonly) NSString *projectId;
// 控制日志打印,日志上传
@property(nonatomic, assign) BOOL debugEnabled;
//控制上传大小，不知道是单次还是累加？
@property(nonatomic, assign) NSUInteger cellularDataLimit;
//控制数据上传间隔 ，默认是15
@property(nonatomic, assign) NSTimeInterval dataUploadInterval;
// sessionId 刷新时间间隔，默认为30秒,详解的代码可见：refreshSessionId方法
@property(nonatomic, assign) NSTimeInterval sessionInterval;
// 没看出来什么作用
@property(nonatomic, assign) BOOL dataCollectionEnabled;
//源码上没这个功能
@property(nonatomic, assign) BOOL uploadExceptionEnable;
//数据采集上传默认服务器
@property(nonatomic, copy) NSString *dataCollectionServerHost;
// 上传日志时,过滤SDK内部事件不上传到后台，默认为0
@property(nonatomic, assign) NSUInteger excludeEvent;
//  过滤内部事件 默认为0
@property(nonatomic, assign) NSUInteger ignoreField;

GrowingAutotracker

static GrowingAutotracker *sharedInstance = nil;
+ (void)startWithConfiguration:(GrowingTrackConfiguration *)configuration launchOptions:(NSDictionary *)launchOptions {
  //1. 主线程判断
 // 2. 项目id空判断
 // 3. sharedInstance初始化，利用NSProxy与消息转化将GrowingRealAutotracker的具体实现转移到 GrowingAutotracker修饰的实体对象上。
 // 4.用户相关操作
    if (![NSThread isMainThread]) {
        @throw [NSException exceptionWithName:@"初始化异常" reason:@"请在applicationDidFinishLaunching中调用startWithConfiguration函数,并且确保在主线程中" userInfo:nil];
    }
    if (!configuration.projectId.length) {
        @throw [NSException exceptionWithName:@"初始化异常" reason:@"ProjectId不能为空" userInfo:nil];
    }
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        GrowingRealAutotracker *autotracker = [GrowingRealAutotracker trackerWithConfiguration:configuration launchOptions:launchOptions];
        sharedInstance = [[self alloc] initWithRealAutotracker:autotracker];
        [[GrowingSession currentSession] generateVisit];
    });
}

GrowingRealAutotracker与GrowingRealTracker

GrowingRealAutotracker继承自GrowingRealTracker类，执行初始化方法，会先后执行GrowingRealTracker与GrowingRealAutotracker内部对应的initWithConfiguration方法。

- (instancetype)initWithConfiguration:(GrowingTrackConfiguration *)configuration launchOptions:(NSDictionary *)launchOptions {
    self = [super init];
    if (self) {
        _configuration = [configuration copyWithZone:nil];
        _launchOptions = [launchOptions copy];
        GrowingConfigurationManager.sharedInstance.trackConfiguration = self.configuration;
        
         //DDLog日志设置
        [self loggerSetting];
        // 应用生命周期,将需要获取"程序启动","前后台切换,"等事件的实例通过内部维护一个list，当事件触发时，将事件分发给list存储的对象中。这样看来是想让list种的组件完全独立，生命周期由一个中心组件分发。【注意点：内部有NSLock锁】
        [GrowingAppLifecycle.sharedInstance setupAppStateNotification];
        //用户账号信息设置，sessionId刷新操作。内部同样维护一个list，当用户userid发送改变时,将会收到账号变更消息。
        [GrowingSession startSession];
        //外部链接打开应用，重写[UIApplication sharedApplication].delegate的openURL等方法。
        [GrowingAppDelegateAutotracker track];
       // BeeHive注册模块实现。https://github.com/alibaba/BeeHive
        [[GrowingModuleManager sharedInstance] registedAllModules];
        [[GrowingModuleManager sharedInstance] triggerEvent:GrowingMInitEvent];
        // 各个Module初始化init之后再进行事件定时发送
       // 埋点数据统计上传初始化，FMDB，定时器，channel相关操作。
        [[GrowingEventManager sharedInstance] configChannels];
        [[GrowingEventManager sharedInstance] startTimerSend];
  
       // 打印Growing当前版本号
        [self versionPrint];
     
       // 打印过滤信息
        [self filterLogPrint];

       // 常见UI组件Hook方法
        [self addAutoTrackSwizzles];
       // UIViewController生命周期管理操作，内部有一个容器，负责DidAppear,DidDisappear操作
        [GrowingPageManager.sharedInstance start];
       //  app生命周期的接收，UIViewController生命周期管理，内部注册了一个Runloop，负责上传当前页面的UiView相关的node路径。
        [GrowingImpressionTrack.sharedInstance start];
    }

    return self;
}