wp8怎样调用当前存入图片库mediaLibrary的图片

[有有不白]

wp8怎样调用当前存入图片库mediaLibrary的图片？c#

1.能够直接调用writeablebitmap中的图片么？
2.如果必须使用文件路径，把pics 代入到path中，应该怎么写？现在的类型貌似是不对应的?

{ 
     WriteableBitmap aaa = new WriteableBitmap(555, 555);
     aaa.Render(cc, new MatrixTransform());
     aaa.Invalidate();
     SaveToMediaLibrary(aaa, fileName, 100);

     MediaLibrary mediaLibrary = new MediaLibrary();
     PictureAlbumCollection albums = mediaLibrary.RootPictureAlbum.Albums;
     var pics  = albums[0].Pictures[albums[0].Pictures.Count - 1].GetImage();
     byte[] png = gogo(pics);  
}

private byte[] gogo(string path)
        {
            StreamResourceInfo info = App.GetResourceStream(new Uri(path, UriKind.Relative));
            if (info == null) return null;
            Stream stream = info.Stream;
            byte[] data = new byte[stream.Length];
            stream.Read(data, 0, (int)stream.Length);
            return data;
}

[有有不白]

upupup

[vbfool]

媒体库是个独立的对象，里边有获取图片的方法，话说做WP不能老想着绝对路径啊，90%的状况是不能使用绝对路径的。

[有有不白]

我的问题主要是多种方法间的纠结。。。这个函数卡住那个函数， 我把题目再修改下，大家请支招~

[有有不白]

wp8怎样调用当前存入图片库mediaLibrary的图片？c# 我们现在有这样一个刚截取的图片。

 var fileName = "hello"; 
 WriteableBitmap aaa = new WriteableBitmap(555, 555);
 aaa.Render(ccc, new MatrixTransform());
 aaa.Invalidate();
 SaveToMediaLibrary(aaa, fileName, 100);

如果提取文件路径，把pics 代入到path中，应该怎么写？

MediaLibrary mediaLibrary = new MediaLibrary();
PictureAlbumCollection albums = mediaLibrary.RootPictureAlbum.Albums;
var pics  = albums[0].Pictures[albums[0].Pictures.Count - 1].GetImage();
var pic  = albums[0].Pictures[albums[0].Pictures.Count - 1].GetThumbnail();

又怎样调取thumbnail的地址呢？

byte[] PNG = gogo(pics);  
byte[] PNGS = gogo(pics); 
message.ThumbData  = PNG;
message.ImageData =  PNGS;
}

这个byte转化工具是不是很鸡肋？我们一定要提取path么？能够直接调用writeablebitmap中的图片么？

private byte[] gogo(string path)
        {
            StreamResourceInfo info = App.GetResourceStream(new Uri(path, UriKind.Relative));
            if (info == null) return null;
            Stream stream = info.Stream;
            byte[] data = new byte[stream.Length];
            stream.Read(data, 0, (int)stream.Length);
            return data;
}