Win 8 app 获取窗口的宽度和高度， 本地化， 及文本读取

在Windows 8的程序中：

1. 获取用户窗口的宽高；

                double height = Windows.UI.Xaml.Window.Current.Bounds.Height;
                double width = Window.Current.Bounds.Width;

2. 获取用户的语言设置；

 this._cultureInfo = System.Globalization.CultureInfo .CurrentUICulture .Name .ToString ();

注释： 我现在还不清楚这个CurrentUICulture是怎么使用的。 我的应用中是通过获取用户的区域来决定显示的语言的：

this._region = Windows.System.UserProfile.GlobalizationPreferences.HomeGeographicRegion;

如果返回的值_region是“CN”, 那么我的程序就显示中文。

3. 文件的读取， text方式；

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.Storage;

namespace QpuzzleTouch.DataModel
{
    public class FileAccess:QpuzzleTouch .Common .BindableBase
    {
        private static FileAccess _fileAccess=new FileAccess();
        public StorageFile StorageFile = null;
        string _fileName = null;

        public string UserData = string.Empty;

        public FileAccess()
        {
            this._fileName = "QpuzzleCustomConfig.txt";
        }

        public static async void InitStorageFile()
        {
            try
            {
                StorageFolder storageFolder = KnownFolders.DocumentsLibrary;
                _fileAccess.StorageFile = await storageFolder .GetFileAsync (_fileAccess ._fileName );
                if (_fileAccess.StorageFile != null)
                {
                    _fileAccess.UserData = await FileIO.ReadTextAsync(_fileAccess.StorageFile);
                }
            }
            catch { }
        }

        public static string GetData()
        {
            InitStorageFile();
            try
            {
                if (_fileAccess.UserData != string.Empty)
                    return _fileAccess.UserData;
                else
                    return string.Empty;
            }
            catch {
                return string.Empty;
            }
        }
        
        public static async void CreateFile(string fileName)
        {
            try
            {
                StorageFolder storageFolder = KnownFolders.DocumentsLibrary;
                _fileAccess.StorageFile = await storageFolder.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting);
            }
            catch { }
        }

        public static async void WriteText(string userContent)
        {
            CreateFile(_fileAccess._fileName);
            try
            {
                if (_fileAccess.StorageFile != null)
                {
                    await FileIO.WriteTextAsync(_fileAccess.StorageFile, userContent);
                }
            }
            catch { }
        }

    }
}

 向程序的本地目录里边写配置文件。

Windows.Storage.ApplicationData.Current.LocalFolder.

        async void ReadFromFile()
        {
            StorageFolder storageFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
            StorageFile storageFile = await storageFolder.CreateFileAsync("text.txt", CreationCollisionOption.OpenIfExists);
            string result =await FileIO.ReadTextAsync(storageFile);
            textbox1.Text = result;
        }
        private async void btwrite_Click(object sender, RoutedEventArgs e)
        {
            StorageFolder storageFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
            StorageFile storageFile =await storageFolder.CreateFileAsync("text.txt", CreationCollisionOption.OpenIfExists);
            await FileIO.AppendTextAsync(storageFile, "abc");
        }