package com.app.util;

public interface ZYJCallBack {

   public void dataResult( String resultString ) ;

   public void progress( Integer progress ) ;

   public void start() ;

}

package com.app.util;

import android.os.AsyncTask;

public class ZYJAsyncTask  extends AsyncTask< String , Integer , String >  {

    ZYJCallBack zyjCallBack ;

    //开始

    @Override

    protected void onPreExecute() {

        super.onPreExecute();

        zyjCallBack.start();

    }

    /**

     * 特别注意：publishProgress( 10  );

     * 这一句一定要写，否则 onProgressUpdate() ,这个方法不会被回调

     */

    @Override

    protected String doInBackground(String... params) {

        publishProgress(   );

        publishProgress(   );

        publishProgress(   );

        publishProgress(   );

        return "哈哈哈，操作完成了" ;

    }

    //onProgressUpdate方法用于更新进度信息

    @Override

    protected void onProgressUpdate(Integer... progresses) {

        zyjCallBack.progress( progresses[] );

    }  

    @Override

    protected void onPostExecute(String result) {

        super.onPostExecute(result);

        zyjCallBack.dataResult( result );

    }

    public void setCallBackListener(ZYJCallBack zyjCallBack){

        this.zyjCallBack = zyjCallBack ;

    }

}

package com.android10;

import com.app.util.ZYJAsyncTask;

import com.app.util.ZYJCallBack;

import android.app.Activity;

import android.os.Bundle;

public class MainActivity extends Activity {

    @Override

    public void onCreate(Bundle savedInstanceState)  {

        super.onCreate(savedInstanceState);

        setContentView( R.layout.activity_main );

        ZYJAsyncTask zyjAsyncTask = new ZYJAsyncTask() ;

        zyjAsyncTask.setCallBackListener( new ZYJCallBack() {

            @Override

            public void start() {

                System.out.println("ssss开始了" ) ;

            }

            @Override

            public void progress(Integer progress) {

                System.out.println("ssss进度为： " + progress ) ;

            }

            @Override

            public void dataResult(String resultString) {

                System.out.println("ssss结果是：" + resultString  ) ;

            }

        });

        zyjAsyncTask.execute( "" ) ;

    }

}