Add bi.CacheOption = BitmapCacheOption.OnLoad directly after your .BeginInit(): BitmapImage bi = new BitmapImage(); bi.BeginInit(); bi.CacheOption = BitmapCacheOption.OnLoad; … Without this, BitmapImage uses lazy initialization by default and stream will be closed by then. In first example you try to read image from possibly garbage-collected closed or even disposed MemoryStream. Second example uses file, which is … Read more
In the first code example the stream is closed (by leaving the using block) before the image is actually loaded. You must also set BitmapCacheOptions.OnLoad to achieve that the image is loaded immediately, otherwise the stream needs to be kept open, as in your second example. public BitmapImage ToImage(byte[] array) { using (var ms = … Read more
When you create your BitmapImage from a Uri, time is required to download the image. If you check the following property, the value will likely be TRUE objImage.IsDownloading As such, you much attach a listener to the DownloadCompleted event handler and move all processing to that EventHandler. objImage.DownloadCompleted += objImage_DownloadCompleted; Where that handler will look … Read more
Yes, you can reference any image from the image element. And you can use data URIs to make the SVG self-contained. An example: <svg xmlns=”http://www.w3.org/2000/svg” xmlns:xlink=”http://www.w3.org/1999/xlink”> … <image width=”100″ height=”100″ xlink:href=”data:image/png;base64,IMAGE_DATA” /> … </svg> The svg element attribute xmlns:xlink declares xlink as a namespace prefix and says where the definition is. That then allows the … Read more
Setting Up the database public class DatabaseHelper extends SQLiteOpenHelper { // Database Version private static final int DATABASE_VERSION = 1; // Database Name private static final String DATABASE_NAME = “database_name”; // Table Names private static final String DB_TABLE = “table_image”; // column names private static final String KEY_NAME = “image_name”; private static final String KEY_IMAGE … Read more