先是布局页面

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:scrollbars="vertical"

android:orientation="vertical" >

android:id="@+id/myButton1"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

/>

android:id="@+id/myTextView1"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

/>

再 是主 activity

package sql.com;

import android.app.Activity;

import android.app.ProgressDialog;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

public class SqlActivity extends Activity

{

private Button mButton1;

private TextView mTextView1;

public ProgressDialog myDialog = null;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

mButton1 =(Button) findViewById(R.id.myButton1);

mTextView1 = (TextView) findViewById(R.id.myTextView1);

mButton1.setOnClickListener(myShowProgressBar);

}

Button.OnClickListener myShowProgressBar = new Button.OnClickListener()

{

public void onClick(View arg0)

{

final CharSequence strDialogTitle = "请稍等";

final CharSequence strDialogBody = "数据读取中 . . . .";

// 显示Progress对话框

myDialog = ProgressDialog.show

(

SqlActivity.this,

strDialogTitle,

strDialogBody,

true

);

mTextView1.setText(strDialogBody);

new Thread()

{

public void run()

{

try

{

/*在这里写上要后台运行的代码段 */

/* 为了明显看见效果，以暂停3秒作为示范*/

sleep(3000);

}

catch (Exception e)

{

e.printStackTrace();

}

finally

{

// 卸载所创建的myDialog对象

myDialog.dismiss();

}

}

}.start(); /* 开始运行线程 */

} /*End: public void onClick(View arg0)*/

};

}

自定义 字体颜色

1, 现在  在 res/values/styles.xml  写入

@android:color/transparent

#ff0000

然后在 T3Activity.java 中

public class T3Activity extends Activity {

/** Called when the activity is first created. */

ProgressDialog myDialog;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

// 每次使用需要调用如下， 进行 new 一下 ， ----

myDialog = new ProgressDialog(T3Activity.this, R.style.myDialog);//加载style

myDialog.setMessage("sss");

myDialog.show();

// =============================================

//OK 之后只需 dismiss();

myDialog.dismiss();

}

}