Evernote 分析机制学习

优秀不是偶然的，evernote 内嵌有 google analytics 分析器，一博内嵌有友盟分析器。几款口碑不错的 android 应用软件都有分析器。就来学习一下 evernote 是如何利用分析器的。

Evernote 记录的机器信息：

IsTablet: 根据屏幕尺寸和分辨率来判断设备是否具备 Tablet 能力

Locale: java.util.Locale.getDefault().toString()

Service: commerce_service

Package: AndroidManifest.xml 中定义的 package

Brand: android.os.Build.BRAND

Model: android.os.Build.MODEL

Network operator: TelephonyManager.getNetworkOperator() + " / " + TelephonyManager.getNetworkOperatorName()

Android version:  android.os.Build.VERSION.RELEASE

Evernote version: AndroidManifest.xml 中定义的 android:versionName

Evernote revision: Enum.REVISION=unknown 

Evernote type: Enum.BUILD_TYPE=public

Internal storage: StatFs.getBlockSize*getAvailableBlocks

External storage: StatFs.getBlockSize*getAvailableBlocks

SDCardStatus: SD

 

反馈crash报告：Android应用如何反馈Crash报告

（1）主线程中设置处理程序，DefaultExceptionHandler

（2）在主Activity的onCreate(Bundle savedInstanceState) 方法中增加代码 

Thread.setDefaultUncaughtExceptionHandler(new DefaultExceptionHandler( this.getApplicationContext() ));  

 

evernote 处理异常：

（1）全局处理 Thread.UncaughtExceptionHandler 的实现

（2）StackTraceElement 中包含com.google.android.apps.analytics了就交给 GoogleAnalytics 处理

（3）异常及处理类型：

• CrashHandler
• NullPointerException
• restartEvernote
• IndexOutOfBoundsException
• SecurityException
• IllegalStateException
• OtherException

（4）日志：slf4j

（5）analytics 记录或发送的 evernote 内容

• category: Exception
• action: Evernote
• label: NullPointerException
• value: 0

（6）analytics 完整的记录

• id
• random
• timestampCurrent
• timestampPrevious
• timestampFirst
• visits: 访问次数
• value: 
• category
• action
• label
• screen_width: 
• screen_height: 

（7）analytics 保存

• google_analytics.db
• GoogleAnalyticsTracker 大于1000条后不再保存
• 删除原来的 hits 记录

（8）发送

• org.apache.http.message.BasicHttpEntityEnclosingRequest
• POST

Evernote 使用举例：

（1）创建新的笔记本：createBusinessNotebook

调用：log("Generic", "businessNotebookCreated", label, 0)

label内容：

• content://com.evernote.evernoteprovider
• linkednotebooks
• guid: UUID.randomUUID()
• notebook_guid: UUID.randomUUID()
• share_name
• user_name: null
• usn: 0
• dirty: true
• sync_mode: 1
• business_id: 0
• stack: 
• uploaded: 0
• permissions: 2304

交给 google analystics 的 action

Class	category	action	label	value
ExceptionHandler	Exception	Evernote	CrashHandler	0
	Exception	Evernote	NullPointerException	0
	Exception	Evernote	restartEvernote	0
	Exception	Evernote	IndexOutOfBoundsException	0
	Exception	Evernote	SecurityException	0
	Exception	Evernote	IllegalStateException	0
	Exception	Evernote	OtherException	0
BillingActivity	Generic	BillingActivity	Billing pending	0
	Generic	BillingActivity	Billing already purchased	0
BillingService	Generic	BillingActivity	Evernote server returned successful response code	0
	Generic	BillingActivity	Evernote server returned error response code	0
	Generic	BillingActivity	Evernote server returned un-successful response code	0
	Generic	BillingActivity	Exception occurred while communication with evernote server,setting alarm	0
	Generic	BillingActivity	Evernote server returned pending response code,setting alarm	0
EvernoteService	Generic	businessNotebookCreated	{Notebook}	0
	Login	failure	...	0
	Login	failure	exception	0
	Login	failure	throwable	0
	Login	reaunthenticate	success	0
	Register	success	createUser	0
	Register	failure	...	0
	Register	failureAll	...	0
	Register	failure	createUserEx	0
	Login	login	success	0
	Login	failure	ClientUnsupported	0
	Login	login	failure	0
	ResetPassword	failure	...	0
	Login	logout	success	0
SyncService	Exception	SyncService-updateQuota	quota-notification-95	0
	Exception	SyncService-updateQuota	quota-notification-75	0
	Exception	SyncService-updateQuota	quota-notification-50	0
FeatureDiscoveryPromo	ButtonClick	FeatureDiscoveryPromo	HidePromo	1
	ButtonClick	FeatureDiscoveryPromo	RemindLater	1
	ButtonClick	FeatureDiscoveryPromo	ActivateButton	1
	Generic	FeatureDiscoveryPromo	BackPressed	1
UserSetupActivity	Generic	setupUser	failure	0
	Generic	setupUser	alreadyPreactivated	0
	Generic	setupUser	success	0
LandingActivity	Show	...	ShowOneClickRegistration	0
	Register	failure	registrationUrls	0
	Login	failureLoadingDialog	...	0
	Register	success	registration	0
RegistrationFragment	Show	PopulateCreateEmail	null	0
	Register	submit	attempt	0
	Register	failure	emailValidation	0
	Register	failure	emailExists	0
	Register	failure	usernameValidation	0
	Register	failure	usernameExists	0
	Register	failure	passwordValidation	0
	Register	failure	networkUnreachable	0
	Register	checkUsername	success	0
	Register	checkUsername	failure	0
	Register	failure	registration	0