2.4.4 进度条

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/layoutMain"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <ProgressBar
        android:id="@+id/progressBar1"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:max="100"/>

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="开始" />

</LinearLayout>

package com.moon.hello2;

import java.util.Calendar;

import android.R.anim;
import android.R.integer;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.ProgressBar;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.TimePicker.OnTimeChangedListener;

public class MainActivity extends Activity {
    private int status = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.activity_main);
        final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar1);
        // final ProgressBar progressBar2 =
        // (ProgressBar)findViewById(R.id.progressBar2);

        final Handler handler = new Handler() {
            public void handleMessage(Message msg) {
                if (msg.what == 0x111) {
                    progressBar.setProgress(MainActivity.this.status);
                    // progressBar2.setProgress(MainActivity.this.status);
                }
            }
        };
        Button button = (Button) findViewById(R.id.button1);
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                new Thread() {
                    public void run() {
                        while (MainActivity.this.status < 100) {
                            doWork();
                            Message message = new Message();
                            message.what = 0x111;
                            handler.sendMessage(message);
                        }
                    }
                }.start();
            }
        });

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    public void doWork() {
        status++;
        try {
            Thread.sleep(100);
        } catch (Exception e) {
            // TODO: handle exception
        }
    }

}