去掉自定义Dialog的黑色边框

main.xml如下:

<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"    tools:context=".MainActivity" >    <Button        android:id="@+id/button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerHorizontal="true"        android:layout_centerVertical="true"        android:text="show dialog" /></RelativeLayout>

test_dialog.xml如下:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="match_parent"    android:background="@android:color/white"    android:orientation="vertical" >        <LinearLayout            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:orientation="horizontal" >            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="username" />            <EditText                android:layout_width="fill_parent"                android:layout_height="wrap_content" />        </LinearLayout>        <LinearLayout            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:orientation="horizontal" >            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="password" />            <EditText                android:layout_width="fill_parent"                android:layout_height="wrap_content" />        </LinearLayout>        <Button            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:text="login" /></LinearLayout>

styles.xml如下:

<resources>    <style name="AppBaseTheme" parent="android:Theme.Light"></style>    <style name="AppTheme" parent="AppBaseTheme"></style>    <style name="dialog" parent="@android:style/Theme.Dialog">        <item name="android:windowFrame">@null</item>        <item name="android:windowIsFloating">true</item>        <item name="android:windowIsTranslucent">true</item>        <item name="android:windowNoTitle">true</item>        <item name="android:windowBackground">@android:color/transparent</item>        <item name="android:backgroundDimEnabled">true</item>        <item name="android:windowContentOverlay">@null</item>    </style></resources>

MainActivity如下:

package cn.com;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.app.Activity;import android.app.Dialog;/** * Demo描述: * 去掉自定义Dialog的黑色边框 * 主要手段: * 在生成Dialog的时候为其指定一个style * 请参见styles.xml文件 * */public class MainActivity extends Activity {private Button mButton;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);init();}public void init() {mButton = (Button) findViewById(R.id.button);mButton.setOnClickListener(new ClickListenerImpl());}private class ClickListenerImpl implements OnClickListener {@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button:              showDialog();break;default:break;}}}private void showDialog(){LayoutInflater inflater=getLayoutInflater(); View dialogView=inflater.inflate(R.layout.test_dialog, null); Dialog dialog=new Dialog(MainActivity.this,R.style.dialog);dialog.setContentView(dialogView);dialog.getWindow().setLayout(440, LayoutParams.WRAP_CONTENT); dialog.show();}}