AOP架构的简单使用

//用来标识方法是否要被追踪，统计
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface BehaviorTrace {
    String value();
}

接着就给我们需要统计的方法进行注释
public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    @BehaviorTrace("摇一摇")
    public void play1(View view) {

        Log.i("MainActivity", "摇一摇被使用了");
        SystemClock.sleep(30);

    }
    @BehaviorTrace("语音")
    public void play2(View view) {

        int beginTime = TimeUtils.begin();
        SystemClock.sleep(30);
        /*TimeUtils.end(beginTime, "play2");*/

    }

    @BehaviorTrace("视频通话")
    public void play3(View view) {

        int beginTime = TimeUtils.begin();
        SystemClock.sleep(30);
        /*TimeUtils.end(beginTime, "play3");*/

    }

    @BehaviorTrace("商城")
    public void play4(View view) {

        int beginTime = TimeUtils.begin();
        SystemClock.sleep(30);
        /*TimeUtils.end(beginTime, "play4");*/

    }

    public void jumpToFriend(View view) {
        Intent i = new Intent(this,FriendActivity.class);
        startActivity(i);

    }

}

//用户行为的切面
@Aspect
public class BehaviorAspect {
    // 带有BehaviorTrace的方法构成了这个切面
    @Pointcut("execution(@com.example.aopdemo.BehaviorTrace * *(..))")
    public void annoHaviorTrace() {

    }

    @Around("annoHaviorTrace()")
    public Object weaveJoinPoint(ProceedingJoinPoint joinPoint) throws Throwable {
        MethodSignature methodSignature = (MethodSignature) joinPoint
                .getSignature();
        // 类名
        String className = methodSignature.getDeclaringType().getSimpleName();
        // 方法名
        String mtdName = methodSignature.getName();
        // 功能名
        BehaviorTrace behaviorTrace = methodSignature.getMethod()
                .getAnnotation(BehaviorTrace.class);
        String fun = behaviorTrace.value();

        long begin = System.currentTimeMillis();
        Object result = joinPoint.proceed();
        //方法执行后
        long duration = System.currentTimeMillis() - begin;
        Log.d("AOP", String.format("功能：%s功能，%s的%s方法执行，耗时:%d ms ", fun,
                className, mtdName, duration));

        return result;
    }
}