MethodCanary

中文

MethodCanary is tool to metric method cost.

Written for AndroidGodEye.

Quick Start

Step0 Download

Root build.gradle

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'cn.hikyson.methodcanary:plugin:VERSION'
    }
}

Module com.android.application

apply plugin: 'cn.hikyson.methodcanary.plugin'

implementation 'cn.hikyson.methodcanary:lib:VERSION'

Step1 Custom plugin

cn.hikyson.methodcanary.plugin has some configurations.

AndroidGodEye {
        enableLifecycleTracer = true // Need lifecycle methods instrumentation, default true
        enableMethodTracer = true // Need common methods instrumentation, default true
        instrumentationRuleFilePath = "app/AndroidGodEye-MethodCanary2.js" // Default AndroidGodEye-MethodCanary.js
        instrumentationRuleIncludeClassNamePrefix = ["cn/hikyson/methodcanary/sample"] // Default null
    }

Methods Meet this condition instrumentationRuleFilePath && instrumentationRuleIncludeClassNamePrefix will be instrumented

You can change instrumentation rule

Add class prefix list to instrumentationRuleIncludeClassNamePrefix
Put js file AndroidGodEye-MethodCanary.js in project root, content sample:

function isInclude(classInfo,methodInfo){
    if(classInfo.name.startsWith('cn/hikyson/methodcanary/samplelib/R$')
            || classInfo.name === 'cn/hikyson/methodcanary/samplelib/BuildConfig'
            || classInfo.name === 'cn/hikyson/methodcanary/samplelib/R'
            || classInfo.name.startsWith('cn/hikyson/methodcanary/sample/R$')
            || classInfo.name === 'cn/hikyson/methodcanary/sample/BuildConfig'
            || classInfo.name === 'cn/hikyson/methodcanary/sample/R'){
            return false
    }
    return true
}

Note

Can not change function name and desc: function isInclude(classInfo,methodInfo)
Functions must return boolean type, default True for isInclude
Param classInfo has fields: int access,String name,String superName,String[] interfaces
Param methodInfo has fields: int access,String name,String desc
Write AndroidGodEye-MethodCanary.js by javascript language

Step2

// start recording
MethodCanary.get().startMethodTracing("sessionName0")
// stop recording
MethodCanary.get().stopMethodTracing(
                    "sessionName0", MethodCanaryConfig(5)
                ) { sessionTag, startMillis, stopMillis, methodEventMap ->
                    Logger.d("finish！！！")
                }
// Observe page lifecycle method cost
MethodCanary.get().addOnPageLifecycleEventCallback { lifecycleExitMethodEvent, page ->
            Logger.d(page.javaClass.simpleName + lifecycleExitMethodEvent)
        }
MethodCanary.get().removeOnPageLifecycleEventCallback()

License

Kyson/MethodCanary

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