关于安卓开发实现进度条对话框

进度条对话框(ProgressDialog)分为圆形和横向两种类型。

方法：

onCreatDialog(int id);创建一个对话框，只有在第一次创建该ID标识的Dialog时执行

onCreatDialog(int id,Bundle args);同上，带参数

onPrepareDialog(int id,Dialog dialog);在onCreateDialog之后，每次在对话框被显示之前都执行

onPrepareDialog(int id,Dialog dialog,Bundle args);同上，带参数

showDialog(int id);显示对话框

showDialog(int id,Bundle args);显示对话框,带参数

dismissDialog(int id);隐藏对话框，不从Activity中移除，保留状态

在layout 中添加两个按钮。第一个id 设为click_1 ,显示圆形进度条第二个id设为click_2 ，显示横向进度条

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <Button
 8         android:id="@+id/click_1"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content"
11         android:text="圆形进度条" />
12 
13     <Button
14         android:id="@+id/click_2"
15         android:layout_width="wrap_content"
16         android:layout_height="wrap_content"
17         android:text="横向进度条" />
18 
19 </LinearLayout>

Layout内容

在.java文件中

  1 package lianxi;
  2 
  3 import com.example.jichu_lianxi.R;
  4 
  5 import android.accounts.OnAccountsUpdateListener;
  6 import android.app.Activity;
  7 import android.app.Dialog;
  8 import android.app.ProgressDialog;
  9 import android.content.DialogInterface;
 10 import android.os.Bundle;
 11 import android.view.View;
 12 import android.view.View.OnClickListener;
 13 import android.widget.Button;
 14 import android.widget.Toast;
 15 
 16 public class KeyOnclick extends Activity{
 17     private Button click_1;
 18     private Button click_2;
 19     private ProgressDialog mpdialog;
 20     private int flag = 0;
 21     @Override
 22     protected void onCreate(Bundle savedInstanceState) {
 23         // TODO Auto-generated method stub
 24         super.onCreate(savedInstanceState);
 25         setContentView(R.layout.key);
 26         
 27         click_1 = (Button) findViewById(R.id.click_1);
 28         click_2 = (Button) findViewById(R.id.click_2);
 29         
 30         click_1.setOnClickListener(new OnClickListener() {
 31             
 32             @Override
 33             public void onClick(View v) {
 34                 // TODO Auto-generated method stub
 35                 mpdialog = new ProgressDialog(KeyOnclick.this);
 36                 //设置圆形进度条风格
 37                 mpdialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
 38                 mpdialog.setTitle("提示");                       //设置标题
 39                 //mpdialog.setIcon(R.drawable.icon);             //设置图标
 40                 mpdialog.setMessage("这是圆形进度条");               //设置内容
 41                 mpdialog.setIndeterminate(false);              //设置进度条是否可以不明确
 42                 mpdialog.setCancelable(true);                  //设置进度条是否可以取消
 43                 mpdialog.setButton("确定", new DialogInterface.OnClickListener() {
 44                     
 45                     @Override
 46                     public void onClick(DialogInterface dialog, int whic) {
 47                         // TODO Auto-generated method stub
 48                         dialog.cancel();                    //取消
 49                     }
 50                 });
 51                 mpdialog.show();                            //显示进度条
 52             }
 53         });
 54         
 55         click_2.setOnClickListener(new OnClickListener() {
 56             
 57             @Override
 58             public void onClick(View v) {
 59                 // TODO Auto-generated method stub
 60                 flag = 0;
 61                 mpdialog = new ProgressDialog(KeyOnclick.this);
 62                 //设置横向进度条风格
 63                 mpdialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
 64                 mpdialog.setTitle("提示");                       //设置标题
 65                 //mpdialog.setIcon(R.drawable.icon);             //设置图标
 66                 mpdialog.setMessage("这是横向进度条");               //设置内容
 67                 mpdialog.setMax(100);                          
 68                 mpdialog.setProgress(0);
 69                 mpdialog.setSecondaryProgress(50);
 70                 mpdialog.setIndeterminate(false);              //设置进度条是否可以不明确
 71                 mpdialog.setCancelable(true);                  //设置进度条是否可以取消
 72                 mpdialog.setButton("确定", new DialogInterface.OnClickListener() {
 73                     
 74                     @Override
 75                     public void onClick(DialogInterface dialog, int whic) {
 76                         // TODO Auto-generated method stub
 77                         dialog.cancel();                    //取消
 78                     }
 79                 });
 80                 new Thread(){
 81                     public void run() {
 82                         try{
 83                             while (flag<=100) 
 84                             {
 85                                 mpdialog.setProgress(flag++);
 86                                 Thread.sleep(100);
 87                             }
 88                             mpdialog.cancel();
 89                             }
 90                         catch(Exception e)
 91                         {
 92                             mpdialog.cancel();
 93                             
 94                         }
 95                     }
 96                 }.start();
 97                 mpdialog.show();                            //显示进度条
 98             }
 99         });
100     }
101 }