自定义dialog对话框获取EditText数据demo

效果：

java代码

package com.example.dialogdemo;import android.app.Activity;import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.os.Bundle;import android.view.LayoutInflater;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.Button;import android.widget.EditText;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);Button btnShow = (Button) findViewById(R.id.btn_show);btnShow.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// 载入xml文件的布局LayoutInflater lf = (LayoutInflater) MainActivity.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);ViewGroup vg = (ViewGroup) lf.inflate(R.layout.layout_view,null);final EditText etShow = (EditText) vg.findViewById(R.id.et_show);new AlertDialog.Builder(MainActivity.this).setView(vg).setTitle("标题").setPositiveButton("确定",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog,int which) {String str = etShow.getText().toString();System.out.println("str--->" + str);}}).setNeutralButton("忽略", null).setNegativeButton("取消", null).show();}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

需要加载的xml文件

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent" >    <TableLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerHorizontal="true"        android:layout_centerVertical="true" >        <TableRow>            <TextView                android:layout_margin="5dp"                android:text="姓名" />            <EditText                android:id="@+id/et_show"                android:layout_width="100dp"                android:layout_margin="5dp"                android:inputType="text" />        </TableRow>    </TableLayout></RelativeLayout>