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[동영상 강좌 ] 블스 - 제 23강 스레드-III (음성추가) -AsnycTask

2017-09-03 18:46:12 By 머나먼나라 0 478 댓글수 4 포스트 하기

5월 2024
일	월	화	수	목	금	토
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31

1. 쓰레드로 처리

class MainActivity

package com.example.choi.mystudy23;

import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {


    TextView tv;
    Button btn01 , button02;

    ProgressDialog dialog=null;
    boolean cancelFlag=true;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        tv=(TextView)findViewById(R.id.tv_01);
        btn01=(Button)findViewById(R.id.bt_01);
        btn01.setOnClickListener(listener);


        button02=(Button)findViewById(R.id.button02);
        button02.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=new Intent(MainActivity.this, Main2Activity.class);
                startActivity(intent);
            }
        });

    }


    View.OnClickListener listener=new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            switch (v.getId()){

                case R.id.bt_01:
                    cancelFlag=true;
                    MyThread myThread =new MyThread(MainActivity.this, 100);
                    myThread.setDaemon(true);
                    myThread.start();
                    break;
            }

        }
    };


    Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {

            if(msg.what ==1){
             //   tv.setText(String.valueOf(num));
                dialog.setProgress(msg.arg1);
            }
        }
    };



    class MyThread extends Thread{

        Context context;
        private int param;
        int num=0;
        public MyThread(Context context, int param){
            this.context=context;
            this.param=param;

            myDialog();
        }


        @Override
        public void run() {

            while (cancelFlag){
                num++;

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        tv.setText(String.valueOf(num));
                    }
                });

                if(num ==param){
                    dialog.dismiss();
                    cancelFlag=false;
                }

                Message msg =Message.obtain();
                msg.what=1;
                msg.arg1=num;
                handler.sendMessage(msg);

                try{
                    Thread.sleep(100);
                }catch (Exception e){
                    e.printStackTrace();
                }
            }

        }



        public void myDialog(){

            dialog=new ProgressDialog(context);
            dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
            dialog.setTitle("Dialog");
            dialog.setMessage("쓰레드 사용");
            dialog.setCancelable(false);
            dialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel",
                    new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                            cancelFlag=false;
                            num=0;
                            tv.setText("Cancelled");
                        }
                    });

            dialog.setProgress(0);
            dialog.show();

        }

    }




}

R.layout.activity_main

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.choi.mystudy23.MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tv_01"
        android:textSize="30sp"
        android:textStyle="normal|bold|italic"
        android:textAlignment="center"
        android:textColor="@android:color/holo_red_dark" />

    <Button
        android:text="시작"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="150dp"
        android:id="@+id/bt_01"
        android:background="@color/colorAccent"
        android:layout_below="@+id/textView"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:textColor="@android:color/background_light" />

    <Button
        android:text="AsyncTask"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/bt_01"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="109dp"
        android:id="@+id/button02" />


</RelativeLayout>

2.AsnycTask

class Main2Activity

package com.example.choi.mystudy23;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class Main2Activity extends AppCompatActivity {

    TextView tv;
    Button btn01;
    NewAsyncTask newAsyncTask;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main2);

        tv=(TextView)findViewById(R.id.tv_01);
        btn01=(Button)findViewById(R.id.bt_01);
        btn01.setOnClickListener(listener);

    }


    View.OnClickListener listener=new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            switch (v.getId()){
                case R.id.bt_01:
                    newAsyncTask=new NewAsyncTask(Main2Activity.this, tv);
                    newAsyncTask.execute(100, 50, 100);
                    break;
            }

        }
    };



}

class NewAsyncTask

package com.example.choi.mystudy23;

import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.util.Log;
import android.widget.TextView;

/**
 * Created by choi on 2017-03-09.
 */

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

    final  static  String TAG="NewAsyncTask";

    Context mContext=null;
    TextView mTv=null;
    ProgressDialog dialog=null;
    boolean cancelFlag =false;


    public NewAsyncTask(Context context, TextView textView){
        this.mContext=context;
        this.mTv=textView;
    }


    //UI 작업 전 실행 - Dialog 띄우기
    @Override
    protected void onPreExecute() {
        Log.i(TAG, "onPreExecute()");

        dialog=new ProgressDialog(mContext);
        dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        dialog.setTitle("Dialog");
        dialog.setMessage("AsyncTask");
        dialog.setCancelable(false);
        dialog.setButton(DialogInterface.BUTTON_NEGATIVE, "CanCel",
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                        cancelFlag=true;

                        //onCancelled() 호출
                        cancel(true);
                    }
                });
        dialog.setProgress(0);
        dialog.show();

    }


    //프로그램 계산
    @Override
    protected Integer doInBackground(Integer... params) {
        Log.i(TAG, "doInBackground()");
        Log.i(TAG, "params[0] : " +params[0]);
        Log.i(TAG, "params[1] : "+params[1]);

        //parmas[0] 값 100 을 가지고서
        for(int i=0; i<params[0]; i++){
            //onProgressUpdate() 호출
            publishProgress(String.valueOf(i));

            try{Thread.sleep(200); }catch (Exception e){ e.printStackTrace();}

            if(cancelFlag)break;
        }

        return params[0];
    }


    //UI 처리 부분
    @Override
    protected void onProgressUpdate(String... values) {

        Log.i(TAG, "onProgressUpdate()");

        int i=Integer.parseInt(values[0]);
        dialog.setProgress(i);
        mTv.setText(String.valueOf(i));

    }


    //작업 후 종료  ex) dialog 종료
    @Override
    protected void onPostExecute(Integer integer) {
        Log.i(TAG, "onPostExecute()");
        Log.i(TAG, "result :" + integer);

        mTv.setText(String.valueOf(integer));
        dialog.dismiss();
    }



    //취소시 발생
    @Override
    protected void onCancelled(Integer integer) {
        Log.i(TAG, "onCancelled()");
        mTv.setText("Cancelled");
        dialog.dismiss();
    }




}

R.layout.main2

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main2"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.choi.mystudy23.Main2Activity">


    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tv_01"
        android:textSize="30sp"
        android:textStyle="normal|bold|italic"
        android:textAlignment="center"
        android:textColor="@android:color/holo_red_dark" />

    <Button
        android:text="시작"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="150dp"
        android:id="@+id/bt_01"
        android:background="@android:color/holo_blue_dark"
        android:layout_below="@+id/textView"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:textColor="@android:color/background_light" />


</RelativeLayout>