import android.app.Activity;import android.app.AlertDialog;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.os.Bundle;import android.view.Display;import android.view.Gravity;import android.view.View;import android.view.ViewGroup;import android.view.WindowManager;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.ListView;import android.widget.Toast;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}public void onClick(View v) {View view = View.inflate(this, R.layout.layout_listview, null);ListView lv = (ListView) view.findViewById(R.id.lv);lv.setAdapter(new MyAdapter());AlertDialog.Builder builder = new Builder(this);final AlertDialog dialog = builder.setIcon(R.drawable.ic_launcher).setTitle("测试").setView(view).setPositiveButton("关闭", new DialogInterface.OnClickListener(){@Overridepublic void onClick(DialogInterface arg0, int arg1) {// TODO Auto-generated method stub}}).show();WindowManager manager = getWindowManager(); Display display = manager.getDefaultDisplay(); int width = display.getWidth(); int height = display.getHeight();dialog.getWindow().setGravity(Gravity.BOTTOM |Gravity.LEFT);dialog.getWindow().setLayout(width/2, height/4); lv.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> parent, View view, int position, long id) {dialog.dismiss();Toast.makeText(MainActivity.this, "对话框消失了", Toast.LENGTH_SHORT).show();}});}private class MyAdapter extends BaseAdapter {@Overridepublic int getCount() {return 5;}@Overridepublic Object getItem(int position) {return null;}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {return View.inflate(MainActivity.this, R.layout.layout_item, null);}}}

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:onClick="onClick"        android:text="弹出对话框" /></RelativeLayout>

<?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" >    <ListView        android:id="@+id/lv"        android:layout_width="match_parent"        android:layout_height="wrap_content" >    </ListView></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="0dip"    android:layout_height="0dip"    android:orientation="horizontal" >    <TextView        android:layout_width="0dip"        android:layout_height="wrap_content"        android:layout_weight="1"        android:text="AAA" />    <TextView        android:layout_width="0dip"        android:layout_height="wrap_content"        android:layout_weight="1"        android:text="BBB" />    <TextView        android:layout_width="0dip"        android:layout_height="wrap_content"        android:layout_weight="1"        android:text="CCC" />    <TextView        android:layout_width="0dip"        android:layout_height="wrap_content"        android:layout_weight="1"        android:text="DDD" /></LinearLayout>