Hugo.java

package com.mcxtzhang.aopdemo;

import android.util.Log;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;

import java.util.concurrent.TimeUnit;

@Aspect
public class Hugo {
    //带有DebugLog注解的所有类
    @Pointcut("within(@com.mcxtzhang.aopdemo.DebugLog *)")
    public void withinAnnotatedClass() {}

    //在带有DebugLog注解的所有类，除去synthetic修饰的方法
    @Pointcut("execution(!synthetic * *(..)) && withinAnnotatedClass()")
    public void methodInsideAnnotatedType() {}

    //在带有DebugLog注解的所有类，除去synthetic修饰的构造方法
    @Pointcut("execution(!synthetic *.new(..)) && withinAnnotatedClass()")
    public void constructorInsideAnnotatedType() {}

    //在带有DebugLog注解的方法
    @Pointcut("execution(@com.mcxtzhang.aopdemo.DebugLog * *(..)) || methodInsideAnnotatedType()")
    public void method() {}

   //在带有DebugLog注解的构造方法
    @Pointcut("execution(@com.mcxtzhang.aopdemo.DebugLog *.new(..)) || constructorInsideAnnotatedType()")
    public void constructor() {}


    @Around("method() || constructor()")
    public Object logAndExecute(ProceedingJoinPoint joinPoint) throws Throwable {
        //执行方法前，做些什么
        //enterMethod(joinPoint);

        long startNanos = System.nanoTime();
        //执行原方法
        Object result = joinPoint.proceed();
        long stopNanos = System.nanoTime();
        long lengthMillis = TimeUnit.NANOSECONDS.toMillis(stopNanos - startNanos);
        //执行方法后，做些什么
        //exitMethod(joinPoint, result, lengthMillis);
        Log.d("TAG", "logAndExecute() called with: joinPoint = [" + lengthMillis + "]"+joinPoint.getSignature());

        return result;
    }
}