Android 弹出对话框Dialog

package Rw.Dialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class Dialog01Activity extends Activity {

private Button button1,button2,button3,button4,button6,button7;
ProgressDialog progressDialog=null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button1=(Button)findViewById(R.id.button1);
button2=(Button)findViewById(R.id.button2);
button3=(Button)findViewById(R.id.button3);
button4=(Button)findViewById(R.id.button4);
button6=(Button)findViewById(R.id.button6);
button7=(Button)findViewById(R.id.button7);

button1.setOnClickListener(new ButtonListener());
button2.setOnClickListener(new ButtonListener());
button3.setOnClickListener(new ButtonListener());
button4.setOnClickListener(new ButtonListener());
button6.setOnClickListener(new ButtonListener());
button7.setOnClickListener(new ButtonListener());
}

class ButtonListener implements OnClickListener{

@Override
public void onClick(View v) {
final String[] itemStrings={"AA","BB","CC","DD"};
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.button1:
AlertDialog.Builder dialog=new AlertDialog.Builder(Dialog01Activity.this);
dialog.setTitle("Dialog").setIcon(android.R.drawable.ic_dialog_info).setMessage("弹出框").setPositiveButton("确定", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
//转跳到另外一个Activity
// TODO Auto-generated method stub
Intent intent=new Intent();
intent.setClass(getApplicationContext(), list.class);
startActivity(intent);
}
}).setNegativeButton("取消", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.cancel();//取消弹出框
}
}).create().show();
break;
case R.id.button2:

AlertDialog.Builder builder=new AlertDialog.Builder(Dialog01Activity.this);
builder.setTitle("LIST").setIcon(android.R.drawable.ic_lock_lock).setItems(itemStrings, new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "你点击的是"+itemStrings[which], Toast.LENGTH_LONG).show();
}
}).create().show();
break;
case R.id.button3:

AlertDialog.Builder builder1=new AlertDialog.Builder(Dialog01Activity.this);
builder1.setTitle("LIST").setIcon(android.R.drawable.ic_lock_lock).setSingleChoiceItems(itemStrings,-1, new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "你点击的是"+itemStrings[which], Toast.LENGTH_LONG).show();

}
}).create().show();
builder1.setCancelable(true);
break;
case R.id.button4:
progressDialog=ProgressDialog.show(Dialog01Activity.this, "下载", "下载中.....",true);
progressDialog.setCancelable(true);//当点击按钮返回的时候Dialog消失
//progressDialog.dismiss();
break;

case R.id.button6:
LayoutInflater inflater=(LayoutInflater)getApplicationContext().getSystemService(LAYOUT_INFLATER_SERVICE);
View view=inflater.inflate(R.layout.style, null);
AlertDialog.Builder builder2=new AlertDialog.Builder(Dialog01Activity.this);
builder2.setView(view);
builder2.setTitle("QQ2011").setPositiveButton("确定", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.cancel();
}
}).create().show();

break;
case R.id.button7:
Dialog01Activity.this.finish();
break;
default:
break;
}
}

}
}

<?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"
android:weightSum="1">
<Button android:id="@+id/button1" android:layout_height="wrap_content" android:layout_width="match_parent" android:text="简单弹出框"></Button>
<Button android:id="@+id/button2" android:layout_height="wrap_content" android:layout_width="match_parent" android:text="带有列表风格"></Button>
<Button android:id="@+id/button3" android:layout_height="wrap_content" android:layout_width="match_parent" android:text="带有Radio"></Button>
<Button android:id="@+id/button4" android:layout_height="wrap_content" android:layout_width="match_parent" android:text="进度条"></Button>
<Button android:id="@+id/button6" android:layout_height="wrap_content" android:layout_width="match_parent" android:text="自定义的"></Button>
<Button android:id="@+id/button7" android:layout_height="wrap_content" android:layout_width="match_parent" android:text="退出"></Button>
</LinearLayout>

<?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" android:weightSum="1">
<ImageView android:layout_height="wrap_content" android:src="@drawable/logo" android:id="@+id/imageView1" android:layout_width="fill_parent"></ImageView>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView android:text="账号:" android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
<EditText android:layout_height="wrap_content" android:layout_weight="1" android:layout_width="wrap_content" android:id="@+id/editText1">
<requestFocus></requestFocus>
</EditText>

</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView android:text="密码:" android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
<EditText android:layout_height="wrap_content" android:layout_weight="1" android:layout_width="wrap_content" android:id="@+id/editText2" android:inputType="textPassword"></EditText>

</LinearLayout>
</LinearLayout>