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
    @Overrideprotected 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*/@Overrideprotected String doInBackground(String... params) {publishProgress( 10  );   publishProgress( 20  );publishProgress( 50  );publishProgress( 100  );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[0] );}  @Overrideprotected 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 {@Overridepublic void onCreate(Bundle savedInstanceState)  {super.onCreate(savedInstanceState);setContentView( R.layout.activity_main );ZYJAsyncTask zyjAsyncTask = new ZYJAsyncTask() ;zyjAsyncTask.setCallBackListener( new ZYJCallBack() {@Overridepublic void start() {System.out.println("ssss开始了" ) ;}@Overridepublic void progress(Integer progress) {System.out.println("ssss进度为： " + progress ) ;}@Overridepublic void dataResult(String resultString) {System.out.println("ssss结果是：" + resultString  ) ;}});zyjAsyncTask.execute( "" ) ;}
}