Android自定义对话框的使用

package com.easyway.android.diaglog;import android.app.Activity;import android.app.AlertDialog;import android.app.AlertDialog.Builder;import android.app.Dialog;import android.content.DialogInterface;import android.content.DialogInterface.OnClickListener;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.Button;/** * Android获取dialog自定义布局中的控件  中特定的对象比较特殊必须通过 *  //获取布局相关的对象 *   LayoutInflater inflater=LayoutInflater.from(this); *   //获取相关的布局 *   View layout = inflater.inflate(R.layout.send_email_dialog, (ViewGroup) findViewById(R.id.send_email_dialog_ll)) *      final EditText sendEmailCon_ET = (EditText) layout.findViewById(R.id.send_email_dialog_et); * * * @author longgangbai * */public class CustomDiaglogActivity extends Activity {    private final int CUSTOM_DIALOG = 1;   private Button diagbtn;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        //设置当前的布局        setContentView(R.layout.main);        //获取按钮        diagbtn=(Button)findViewById(R.id.btndiaglog);        //设置按钮的事件        View.OnClickListener dateBtnListener =               new BtnOnClickListener(CUSTOM_DIALOG);              diagbtn.setOnClickListener(dateBtnListener);       }    /**     * 重写Activity的方法实现相关的不同     *      * 按钮的实现不同对话框     *      *      * 想要获取自定义布局中的控件必须调用你所定义的View的findViewById方法，而不能像获得其他控件一样直接调用findViewById方法。。。     */    @Override    protected Dialog onCreateDialog(int id) {       //自定义对话框    AlertDialog.Builder builder= new Builder(CustomDiaglogActivity.this);    //获取布局相关的对象    LayoutInflater inflater=LayoutInflater.from(this);    //获取相关的布局    View layout = inflater.inflate(R.layout.send_email_dialog, (ViewGroup) findViewById(R.id.send_email_dialog_ll));     //设置相关的视图    builder.setView(layout);    //设置标题    builder.setTitle("反馈意见");    //确定按钮的操作    builder.setPositiveButton("确认",new OnClickListener(){        @Override        public void onClick(DialogInterface dialog, int which) {        //销毁对话框        dialog.dismiss();        CustomDiaglogActivity.this.finish();       }    });    //取消按钮的操作    builder.setNegativeButton("取消",new OnClickListener(){    @Override    public void onClick(DialogInterface dialog, int which) {        dialog.dismiss();   }    });    return builder.create();    }            /**        * 成员内部类,此处为提高可重用性，也可以换成匿名内部类        */       private class BtnOnClickListener implements View.OnClickListener {              private int dialogId = 0;   //默认为0则不显示对话框              public BtnOnClickListener(int dialogId) {               this.dialogId = dialogId;           }           @Override           public void onClick(View view) {               showDialog(dialogId);           }          }   }

send_mail_dialog.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/send_email_dialog_ll"android:orientation="vertical"android:layout_width="match_parent"android:layout_height="match_parent">    <TextView    android:layout_width="wrap_content"    android:textAppearance="?android:attr/textAppearanceMedium"    android:layout_height="wrap_content"    android:text="To : longgangbai@sina.com"    android:layout_gravity="center"    android:layout_marginTop="4dp" />    <EditText    android:id="@+id/send_email_dialog_et"    android:layout_height="wrap_content"    android:layout_width="fill_parent"    android:inputType="textMultiLine"    android:lines="4"    android:hint="@string/message"    android:scrollbarAlwaysDrawVerticalTrack="true"    android:layout_marginTop="9dp">        <requestFocus></requestFocus>    </EditText></LinearLayout>

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