Android 計算執行時間

 

package qas_tool;

import android.util.Log;

public class Execution_time {

    private long startTime ;


    public  void begin(){
         startTime = System.nanoTime();
    }


    public  void end(){

        long consumingTime = System.nanoTime()-startTime;
        Log.e("TTT", consumingTime/1e6+"");
    }

}