AlertDialog自定义下载进度条

1.布局文件

1. activity_main.xml

   <pre class="prettyprint lang-js linenums"><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=".MainActivity" >
       <Button
           android:id="@+id/button1"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_centerHorizontal="true"
           android:layout_centerVertical="true"
           android:text="下载" />
   </RelativeLayout></pre>

2. two_activity.xml(自定义对话框内部显示的控件)

   <pre class="prettyprint lang-js linenums"><?xml version="1.0" encoding="utf-8"?>
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
       android:id="@+id/RelativeLayout1"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:orientation="vertical" >
   
       <TextView
           android:id="@+id/textView1"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_alignParentTop="true"
           android:layout_centerHorizontal="true"
           android:layout_marginTop="60dp"
           android:text="文件已下载"
           android:textAppearance="?android:attr/textAppearanceLarge" />
   
       <ProgressBar
           android:id="@+id/progressBar1"
           style="?android:attr/progressBarStyleHorizontal"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:layout_alignParentLeft="true"
           android:layout_alignParentRight="true"
           android:layout_below="@+id/textView1"
           android:layout_marginTop="81dp" />
   
   </RelativeLayout></pre>

3. MainActivity.java文件

package com.example.test;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.ProgressDialog;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
/***
 * 自定义下载进度对话框
 * @author hdcking.cn
 */
public class MainActivity extends Activity {
	Button btn = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		btn = (Button)findViewById(R.id.button1);
		btn.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
//				AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
//				builder.setTitle("下载进度");
//				builder.setIcon(R.drawable.ic_launcher);
//				LayoutInflater inflater = getLayoutInflater();
//				builder.setView(inflater.inflate(R.layout.two_activity, null));
//				builder.show();
				ProgressDialog pd = new ProgressDialog(MainActivity.this);
				pd.setTitle("文件下载");
				pd.setIcon(R.drawable.ic_launcher);
				pd.setMax(100);//文件最大加载数
				pd.setMessage("文件已下载");
				pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);//进度条风格
				pd.setCancelable(true);//点击返回是否退出
				pd.show();
			}
		});
	}
}