Android自定义对话框

<LinearLayout 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:orientation="vertical" >

    <Button 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button1"
        android:onClick="brn1Onclick"/>
    <Button 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button2"
        android:onClick="brn2Onclick"/>

</LinearLayout>

package com.example.test13;

import android.support.v7.app.ActionBarActivity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {
	private Dialog customDialog;
	private EditText zh;
	private EditText pwd;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		createCustom();
	}
	
	public void createCustom(){
		LayoutInflater inflater=getLayoutInflater();
		View customView=inflater.inflate(R.layout.custon_view, null);
		Button btnOk=(Button)customView.findViewById(R.id.et_ok);
		btnOk.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				customDialog.dismiss();
			}
		});
		customDialog=new Dialog(this);
		customDialog.setTitle("自定义");
		customDialog.setContentView(customView);
	}
	
	public void brn2Onclick(View view){
		customDialog.show();
	}
	public void brn1Onclick(View view){
		LayoutInflater inflater=getLayoutInflater();
		View custonView=inflater.inflate(R.layout.custon_view, null);
		zh=(EditText) custonView.findViewById(R.id.et_zh);
		pwd=(EditText) custonView.findViewById(R.id.et_pwd);
		new AlertDialog.Builder(this)
		.setTitle("自定义")
		.setView(custonView)
		.setPositiveButton("确定", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				String userName=zh.getText().toString().trim();
				String userPassword=pwd.getText().toString().trim();
				Toast.makeText(MainActivity.this, userName+":"+userPassword, Toast.LENGTH_LONG).show();
				
			}
		})
		.show();
	}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <LinearLayout 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
	    android:orientation="horizontal">
		<TextView 
		    android:layout_width="wrap_content"
		    android:layout_height="wrap_content"
		    android:text="账号:"
		    android:textSize="20sp"/>
		<EditText 
		    android:id="@+id/et_zh"
		    android:layout_width="match_parent"
		    android:layout_height="wrap_content"
		    android:hint="请输入账号"/>
	</LinearLayout>
	 <LinearLayout 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
	    android:orientation="horizontal">
		<TextView  
		    android:layout_width="wrap_content"
		    android:layout_height="wrap_content"
		    android:text="密码:"
		    android:textSize="20sp"/>
		<EditText 
		     android:id="@+id/et_pwd"
		    android:layout_width="match_parent"
		    android:layout_height="wrap_content"
		    android:inputType="textPassword"
		    android:hint="请输入密码"/>
	</LinearLayout>
	<Button 
	    android:id="@+id/et_ok"
	    android:layout_width="wrap_content"
	    android:layout_height="wrap_content"
	    android:text="ok"/>
</LinearLayout>