Android[初级教程]第十三章 ProgressDialog控件

这次我们学习ProgressDialog控件,还是拿西游记来说,唐僧被妖怪们抓去了,那悟空得去救啊,但妖怪肯定不让啦,这就经过了一番打斗,当然,妖怪肯定打不过悟空啦,我们就用ProgressDialog来模拟打妖怪的过程,设定为100只妖怪,打完这100只妖怪才能救出师傅.看图:

呵呵,这次悟空没出手,让八戒跟沙僧抢了回头功,来看main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <Button android:text="悟空去救师傅" android:id="@+id/wukong"
        android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
    <Button android:text="八戒去救师傅" android:id="@+id/bajie"
        android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
    <Button android:text="沙僧去救师傅" android:id="@+id/shaseng"
        android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>

</LinearLayout>

还是老样子,定义了几个按钮,接下来看Activity的java源码:

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class ProgressDialogDemo extends Activity implements OnClickListener
{
    private ProgressDialog Dialog;
    private Handler mhandler;
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.progressdialog);

        Button wukong = (Button) findViewById(R.id.wukong);
        wukong.setOnClickListener(this);

        Button bajie = (Button) findViewById(R.id.bajie);
        bajie.setOnClickListener(this);

        Button shaseng = (Button) findViewById(R.id.shaseng);
        shaseng.setOnClickListener(this);
    }

    @Override
    public void onClick(View v)
    {
        //设定Handler对象,主要是处理新开线程完毕后交给主线程来处理的数据
        mhandler = new Handler(){
            @Override
            public void handleMessage(Message msg)
            {
                String name =(String)msg.obj;
                Toast.makeText(ProgressDialogDemo.this, name + "把师傅救出来了", 1).show();
            }
        };
        //创建ProgressDialog对象
        Dialog = new ProgressDialog(this);
        //设定ProgressDialog的样式为进度条
        Dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        //设定ProgressDialog的最大值为100,这里就是100只小妖怪啦
        Dialog.setMax(100);
        //设定ProgressDialog不能取消,你不能半途而废啊,当然要100只打完啦
        Dialog.setCancelable(false);

        String name = null;

        switch (v.getId())
        {
        case R.id.wukong:
            //设定名字,看是谁在打妖怪啊
            name = "孙悟空";
            Dialog.setTitle(name);
            //图片
            Dialog.setIcon(R.drawable.wukong);
            //消息
            Dialog.setMessage("悟空在打妖怪");
            //自定义打斗的方法
            doFlight(name);

            break;

        case R.id.bajie:

            //同上
            name = "猪八戒";
            Dialog.setTitle(name);
            Dialog.setIcon(R.drawable.bajie);
            Dialog.setMessage("八戒在打妖怪");
            doFlight(name);

            break;

        case R.id.shaseng:

   &nbs

补充：移动开发 , Android ,