90 Android Dialog 自定义 大小 位置

activity_main.xml (布局文件代码)

<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:id="@+id/button_main"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:layout_marginLeft="97dp"        android:layout_marginTop="140dp"        android:text="Button" /></RelativeLayout>

head_picture_dialog.xml 文件代码

<?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:background="#ffffff"    android:orientation="vertical" >    <Button        android:layout_weight="1"        android:id="@+id/button_take"        android:layout_width="fill_parent"        android:layout_height="0dp"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:text="拍照" />    <Button        android:layout_weight="1"        android:id="@+id/button2_get"        android:layout_width="fill_parent"        android:layout_height="0dp"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:text="从本地获取" />    <Button        android:layout_weight="1"        android:id="@+id/button3_cancel"        android:layout_width="fill_parent"        android:layout_height="0dp"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:text="取消" /></LinearLayout>

MainActivity.java

package com.example.diloagtest;import android.os.Bundle;import android.app.Activity;import android.app.Dialog;import android.view.Display;import android.view.LayoutInflater;import android.view.Menu;import android.view.View;import android.view.WindowManager;import android.view.View.OnClickListener;import android.view.Window;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity {private Dialog dialog;private Button button;private Button button_takePic;private Button button_getPic;private Button button_cancelPic;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);dialog = new Dialog(this);dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉titlebutton = (Button) findViewById(R.id.button_main);View view = LayoutInflater.from(this).inflate(R.layout.head_picture_dialog, null);button_takePic=(Button)view.findViewById(R.id.button_take);button_getPic=(Button)view.findViewById(R.id.button2_get);button_cancelPic=(Button)view.findViewById(R.id.button3_cancel);dialog.setContentView(view);// dialog.setTitle("");/* * 获取对话框的窗口对象及参数对象以修改对话框的布局设置, 可以直接调用getWindow(),表示获得这个Activity的Window * 对象,这样这可以以同样的方式改变这个Activity的属性. */Window dialogWindow = dialog.getWindow();/* * 将对话框按屏幕的百分比设置 */WindowManager manager = getWindowManager();Display display = manager.getDefaultDisplay();// 获取屏幕的高、宽用WindowManager.LayoutParams p =dialogWindow.getAttributes();p.height = (int) (display.getHeight()*0.5); // 高度设置为屏幕的0.5p.width = (int) (display.getWidth() ); // 宽度设置为屏幕的0.5p.x=100;p.y=100;dialogWindow.setAttributes(p);        // 监听button.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubdialog.show();}});//弹出对话框的监听button_takePic.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubdialog.dismiss();Toast.makeText(MainActivity.this, "拍照", 1).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;}}

连接 ：http://www.cnblogs.com/angeldevil/archive/2012/03/31/2426242.html