Determines the MIME type for a given filename. : File « File « Android






  1. Android
  2. File
  3. File

Determines the MIME type for a given filename.

    
/** Utility class containing MIME type-related helper functions. */
public class MimeUtils {

  /**
   * Determines the MIME type for a given filename.
   * 
   * @param filename
   *            The file to determine the MIME type of.
   * @return The MIME type of the file, or a wildcard if none could be
   *         determined.
   */
  public static String getType(final String filename) {
    // There does not seem to be a way to ask the OS or file itself for this
    // information, so unfortunately resorting to extension sniffing.

    int pos = filename.lastIndexOf('.');
    if (pos != -1) {
      String ext = filename.substring(filename.lastIndexOf('.') + 1,
          filename.length());

      if (ext.equalsIgnoreCase("mp3"))
        return "audio/mpeg";
      if (ext.equalsIgnoreCase("aac"))
        return "audio/aac";
      if (ext.equalsIgnoreCase("wav"))
        return "audio/wav";
      if (ext.equalsIgnoreCase("ogg"))
        return "audio/ogg";
      if (ext.equalsIgnoreCase("mid"))
        return "audio/midi";
      if (ext.equalsIgnoreCase("midi"))
        return "audio/midi";
      if (ext.equalsIgnoreCase("wma"))
        return "audio/x-ms-wma";

      if (ext.equalsIgnoreCase("mp4"))
        return "video/mp4";
      if (ext.equalsIgnoreCase("avi"))
        return "video/x-msvideo";
      if (ext.equalsIgnoreCase("wmv"))
        return "video/x-ms-wmv";

      if (ext.equalsIgnoreCase("png"))
        return "image/png";
      if (ext.equalsIgnoreCase("jpg"))
        return "image/jpeg";
      if (ext.equalsIgnoreCase("jpe"))
        return "image/jpeg";
      if (ext.equalsIgnoreCase("jpeg"))
        return "image/jpeg";
      if (ext.equalsIgnoreCase("gif"))
        return "image/gif";

      if (ext.equalsIgnoreCase("xml"))
        return "text/xml";
      if (ext.equalsIgnoreCase("txt"))
        return "text/plain";
      if (ext.equalsIgnoreCase("cfg"))
        return "text/plain";
      if (ext.equalsIgnoreCase("csv"))
        return "text/plain";
      if (ext.equalsIgnoreCase("conf"))
        return "text/plain";
      if (ext.equalsIgnoreCase("rc"))
        return "text/plain";
      if (ext.equalsIgnoreCase("htm"))
        return "text/html";
      if (ext.equalsIgnoreCase("html"))
        return "text/html";

      if (ext.equalsIgnoreCase("pdf"))
        return "application/pdf";
      if (ext.equalsIgnoreCase("apk"))
        return "application/vnd.android.package-archive";

      // Additions and corrections are welcomed.
    }
    return "*/*";
  }

}








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