【WP7】照片与扩展性
WP7运行编写照片扩展程序,让应用程序显示在相册中,应用程序把图片写入相册
添加命名空间
using Microsoft.Xna.Framework.Media;
1、保存图片到CameraRoll
MediaLibrary library = new MediaLibrary(); //用于访问媒体库 BitmapImage bmp = (BitmapImage)image1.Source; //获取Image空间的图片资源 Uri uri = bmp.UriSource; StreamResourceInfo Sri = Application.GetResourceStream(uri); library.SavePicture("11.jpg", Sri.Stream);
2、保存图片到Album
MediaLibrary library = new MediaLibrary(); BitmapImage bmp = (BitmapImage)image1.Source; Uri uri = bmp.UriSource; StreamResourceInfo Sri = Application.GetResourceStream(uri); library.SavePictureToCameraRoll("11.jpg", Sri.Stream);
3、连接扩展图片中心
打开应用程序清单文件 WMAppManifest.xml 并紧接着 Tokens 元素后面添加以下代码作为 App 元素的子元素。这样,应用程序便能够从图片查看器中启动
<Extensions> <Extension ExtensionName="Photos_Extra_Hub" ConsumerID="{5B04B775-356B-4AA0-AAF8-6491FFEA5632}" TaskID="_default" /> </Extensions>
4、连接扩展图片查看器
-在程序清单中添加以下代码
<Extensions> <Extension ExtensionName="Photos_Extra_Viewer" ConsumerID="{5B04B775-356B-4AA0-AAF8-6491FFEA5632}" TaskID="_default" /> </Extensions>
-重写应用程序页面导航函数 OnNavigatedTo()
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protected override void OnNavigatedTo(NavigationEventArgs e) { IDictionary<string, string> queryStrings = this.NavigationContext.QueryString; if (queryStrings.ContainsKey("token")) { MediaLibrary library = new MediaLibrary(); //获取图片信息 Picture picture = library.GetPictureFromToken(queryStrings["token"]); BitmapImage bitmap = new BitmapImage(); bitmap.CreateOptions = BitmapCreateOptions.None; bitmap.SetSource(picture.GetImage()); //下面对图片做相应的操作 } }
5、连接扩展共享选取器
操作与上面类似
<Extensions> <Extension ExtensionName="Photos_Extra_Share" ConsumerID="{5B04B775-356B-4AA0-AAF8-6491FFEA5632}" TaskID="_default" /> </Extensions>
同样重写 OnNavigatedTo() 函数
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protected override void OnNavigatedTo(NavigationEventArgs e) { IDictionary<string, string> queryStrings = this.NavigationContext.QueryString; if (queryStrings.ContainsKey("FileId")) { MediaLibrary library = new MediaLibrary(); //获取图片信息 Picture picture = library.GetPictureFromToken(queryStrings["FileId"]); BitmapImage bitmap = new BitmapImage(); bitmap.CreateOptions = BitmapCreateOptions.None; bitmap.SetSource(picture.GetImage()); //下面对图片做相应的操作 } }