android 多线程刷新界面

[1].[代码] [Java]代码 跳至 [1]

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packagecom.example.ui_reflash;

 

importjava.util.ArrayList;

 

importandroid.os.Bundle;

importandroid.os.Handler;

importandroid.os.Message;

importandroid.app.Activity;

importandroid.view.Menu;

importandroid.view.View;

importandroid.view.View.OnClickListener;

importandroid.widget.Button;

 

publicclass MainActivity extendsActivity {

  publicint i=0;

  publicint num=0;

  privateButton btn;

  privateButton btnan;

  publicfinal static  int success=1;

  privateint no_success=0;

  privateThread thread;

  Handler mhandler=newHandler(){

    publicvoid handleMessage(Message msg){

        //switch(msg.what){

        //case success:

        System.out.println("mhandler");

        //btn.setText(msg.obj.toString());

        ArrayList arraylist=newArrayList();

        arraylist=(ArrayList)msg.obj;

        //num++;

        btn.setText(arraylist.get(arraylist.size()-1).toString());

       // break;

        //}

    }

  };

    @Override

    protectedvoid onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        btn=(Button)findViewById(R.id.btn);

        btnan=(Button)findViewById(R.id.btnan);

        btnan.setOnClickListener(newOnClickListener() {

            @Override

            publicvoid onClick(View v) {

                System.out.println("hello");

                 thread=newThread(runnable);

                thread.start();

            }

 

        });

    }

    

  Runnable runnable=newRunnable(){

    @Override

    publicvoid run() {

        // TODO Auto-generated method stub

        ArrayList list=newArrayList();

             

            while(true){

                i++;

                list.add(i);

            mhandler.obtainMessage(success,list).sendToTarget();

            System.out.println("runnable");

            try{

                Thread.sleep(1000);

            }catch(InterruptedException e) {

                // TODO Auto-generated catch block

                e.printStackTrace();

            }

            }

    }

       

  };

}

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    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"

    android:orientation="vertical"

    tools:context=".MainActivity">

 

    <Button

        android:id="@+id/btnan"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="点击"

    />

    <Button

        android:id="@+id/btn"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="数字"

    />

 

</LinearLayout>