[mw_shl_code=java,true]package com.sunchis.demo;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class PopMaskViewActivity extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button button = (Button) findViewById(R.id.button);

button.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// 弹出遮罩层

new DialogView(PopMaskViewActivity.this).show();

}

});

}

}

[/mw_shl_code]

DialogView代码，该View实际上是对话框(Dialog)的自定义，通过单击按钮来触发Dialog的弹出，其样式的控制在style.xml中。

[mw_shl_code=java,true]package com.sunchis.demo;

import android.app.Activity;

import android.app.Dialog;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.view.ViewGroup.LayoutParams;

import android.widget.ImageView;

import android.widget.LinearLayout;

public class DialogView {

private Dialog dialog;

public DialogView(Activity mActivity) {

dialog = new Dialog(mActivity, R.style.mask_dialog);

LinearLayout popView = (LinearLayout) LayoutInflater.

from(mActivity).inflate(R.layout.dialog_view, null);

// 关闭按钮

ImageView viewClose = (ImageView) popView.findViewById(R.id.win_close);

viewClose.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

hide();

}

});

dialog.setContentView(popView,

new LinearLayout.LayoutParams(

LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

dialog.setFeatureDrawableAlpha(Window.FEATURE_OPTIONS_PANEL, 0);

}

public void show() {

dialog.show();

}

public void hide() {

dialog.dismiss();

}

} [/mw_shl_code]

对话框(Dialog)样式style.xml代码，通过“new Dialog(context, theme)”方法进行设置。

[mw_shl_code=java,true]<?xml version="1.0" encoding="utf-8"?>

true

true

true

@null

true

[/mw_shl_code]

最后就是遮罩层的布局代码了：

[mw_shl_code=xhtml,true]<?xml version="1.0" encoding="utf-8"?>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/dialog"

android:orientation="vertical" >

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:background="@drawable/title" >

android:id="@+id/win_close"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:src="@drawable/close" />

android:id="@+id/win_title"

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:layout_weight="1.05"

android:gravity="center"

android:text="@string/view_title"

android:textColor="#ffffff"

android:textSize="20sp" />

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:src="@drawable/default_button" />

[/mw_shl_code]

涉及到的部分图片素材就没有一一列出来，但都包含在源码包中，建议下载源进行研究和学习！