android中ProgressDialog与ProgressBar的使用详解

ProgressDialog mProgressDialog = new ProgressDialog(TestProgerssDialogActivity.this);
// 设置mProgressDialog风格
mProgressDialog.setProgress(ProgressDialog.STYLE_SPINNER);//圆形
mProgressDialog.setProgress(ProgressDialog.STYLE_HORIZONTAL);//水平
// 设置mProgressDialog标题
mProgressDialog.setTitle("提示");
// 设置mProgressDialog提示
mProgressDialog.setMessage("这是一个圆形进度条对话框");
// 设置mProgressDialog进度条的图标
mProgressDialog.setIcon(R.drawable.flag);
// 设置mProgressDialog的进度条是否不明确
//不滚动时，当前值在最小和最大值之间移动，一般在进行一些无法确定操作时间的任务时作为提示，明确时就是根据你的进度可以设置现在的进度值
mProgressDialog.setIndeterminate(false);
//mProgressDialog.setProgress(m_count++);
// 是否可以按回退键取消
mProgressDialog.setCancelable(true);
// 设置mProgressDialog的一个Button
mProgressDialog.setButton("确定", new DialogInterface.OnClickListener()
{
  @Override
  public void onClick(DialogInterface dialog, int which)
  {
    dialog.cancel();
   }
});
// 显示mProgressDialogmProgressDialog.show();

 mProgressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {

   @Override
   public void onCancel(DialogInterface dialog) {
    // TODO Auto-generated method stub
    mProgressDialog.hide();
    webview.stopLoading();

   }
  });

<?xml version="1.0" encoding="utf-8"?> 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:orientation="vertical"
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent"> 

     <TextView
android:layout_width="fill_parent" 
android:layout_height="wrap_content"
android:text="Welcome to blog" /> 
     <ProgressBar
android:id="@+id/rectangleProgressBar" 
style="?android:attr/progressBarStyleHorizontal" mce_style="?android:attr/progressBarStyleHorizontal"  
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone"
/>
     <ProgressBar
android:id="@+id/circleProgressBar" 
style="?android:attr/progressBarStyleLarge" mce_style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
/>

     <Button android:id="@+id/button"
    android:text="Show ProgressBar" 
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    />
 </LinearLayout>