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

        }

    }



}