- 아래 내용  에러 코드 임 다시 확인 할것

 

class MainActivity

 

package org.androidtown.mythread2;

import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private static final String TAG ="MainActivity";

    ProcessThread processThread;
    TextView textView1, textView2;

    int num;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView1=(TextView)findViewById(R.id.textView1);
        textView2=(TextView)findViewById(R.id.textView2);

    }



    public void onButton1Click(View v){


        processThread =new ProcessThread();
        processThread.start();

        processThread.handler.post(new Runnable() {
            @Override
            public void run() {
                Log.i(TAG, "메인 스레드에서 새로운 스레드로 전달");
                textView1.setText("메인 스레드에서 새로운 스레드로 전달");
            }
        });
    }



    class ProcessThread extends Thread{

        Handler handler =new Handler();

        public ProcessThread(){

        }

        @Override
        public void run() {
            Looper.prepare();
            Looper.loop();

            for(int i=0; i<100; i++){

                Log.i(TAG, "스레드 동작중  : # " + i);

                num=i;
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        textView2.setText(num);
                    }
                });

                try {
                    Thread.sleep(1000);
                }catch (Exception e){}
            }

        }
    }

}

 

 

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="org.androidtown.mythread2.MainActivity">

    <Button
        android:text="스레드"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="53dp"
        android:id="@+id/button"
        android:onClick="onButton1Click"
        />

    <TextView
        android:text="TextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="56dp"
        android:id="@+id/textView1"
        android:textSize="18sp" />

    <TextView
        android:text="TextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="104dp"
        android:id="@+id/textView2"
        android:textSize="18sp"
        android:layout_below="@+id/textView1"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />


</RelativeLayout>

 

 

 

 

 

 

83강

 

 

 

 

84강