AsyncTask

package com.example.testinvokewebservice;

import android.os.AsyncTask;
import android.widget.TextView;

import com.model.ParamsModel;
public class DownloadAsyncTask extends AsyncTask<ParamsModel, Integer, String>{

    public TextView view;
    private int i=0;
    @Override
    protected String doInBackground(ParamsModel... params) {
        // TODO Auto-generated method stub
        i = params[0].getiStart();
        for(int i1=0;i1<100;i1++)
        {
            i++;
            try {
                Thread.sleep(1000);
                publishProgress(i);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            
        }
        return Integer.toString(i);
    }

    /* (non-Javadoc)
     * @see android.os.AsyncTask#onPreExecute()
     */
    @Override
    protected void onPreExecute() {
        // TODO Auto-generated method stub
        view.setText("正准备执行后台操作");
    }

    /* (non-Javadoc)
     * @see android.os.AsyncTask#onPostExecute(java.lang.Object)
     */
    @Override
    protected void onPostExecute(String result) {
        // TODO Auto-generated method stub
        view.setText("执行后台操作完成,i的结果是："+result);
    }

    /* (non-Javadoc)
     * @see android.os.AsyncTask#onProgressUpdate(java.lang.Object[])
     */
    @Override
    protected void onProgressUpdate(Integer... values) {
        // TODO Auto-generated method stub
        //如果直接是  view.setText(values[0]) 会出错呢。。 这个地方很奇怪
        view.setText(values[0] + "");
    }
}

package com.example.testinvokewebservice;

import com.model.ParamsModel;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        Button btn= (Button)findViewById(R.id.btnLogin);
        btn.setOnClickListener(new View.OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                EditText editText = (EditText)findViewById(R.id.editText);
                String strValue = editText.getText().toString();
                
                TextView view = (TextView)findViewById(R.id.textView);
                ParamsModel model = new ParamsModel();
                model.setiStart(Integer.valueOf(strValue));
                DownloadAsyncTask download = new DownloadAsyncTask();
                download.view = view;
                download.execute(model);
            }
        });
    }
}

<RelativeLayout 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"
    tools:context="com.example.testinvokewebservice.MainActivity" >

    <EditText 
        android:id="@+id/editText"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="请输入初始数字："
        />
    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/btnLogin"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="195dp"
        android:gravity="center_vertical"
        android:text="调用WebService" />

</RelativeLayout>