public void OnPreviewFrame(byte[] data, Android.Hardware.Camera camera)
{
try
{
System.Console.WriteLine("start create Image");
yuvImage = new YuvImage(data, ImageFormatType.Nv21,
previewWidth, previewHeight, null);
stride = yuvImage.GetStrides();
try
{
if (isReady)
{
if (backgroundHandler != null)
{
isReady = false;
Message msg = new Message();
msg.What = 100;
msg.Obj = yuvImage;
backgroundHandler.SendMessage(msg);
}
}
}
catch (BarcodeReaderException e)
{
e.PrintStackTrace();
}
}
catch (System.IO.IOException)
{
}
}
public void OnPreviewFrame(byte[] data, Android.Hardware.Camera camera)
{
try
{
yuvImage = new YuvImage(data, ImageFormatType.Nv21,
previewWidth, previewHeight, null);
stride = yuvImage.GetStrides();
try
{
if (isReady)
{
if (backgroundHandler != null)
{
isReady = false;
Message msg = new Message();
msg.What = 100;
msg.Obj = yuvImage;
backgroundHandler.SendMessage(msg);
backgroundHandler.Post(() =>
{
//tvResult.Text = result;
});
}
}
}
catch (BarcodeReaderException e)
{
e.PrintStackTrace();
}
}
catch (System.IO.IOException)
{
}
}
public override void HandleMessage(Message msg)
{
if (msg.What == 100)
{
Message msg1 = new Message();
msg1.What = 200;
msg1.Obj = "";
try
{
YuvImage image = (YuvImage)msg.Obj;
if (image != null)
{
int[] stridelist = image.GetStrides();
TextResult[] text = barcodeReader.DecodeBuffer(image.GetYuvData(), previewWidth, previewHeight, stridelist[0], EnumImagePixelFormat.IpfNv21, "");
if (text != null && text.Length > 0)
{
for (int i = 0; i < text.Length; i++)
{
if (i == 0)
{
msg1.Obj = "Code[1]: " + text[0].BarcodeText;
}
else
{
msg1.Obj = msg1.Obj + "\n\n" + "Code[" + (i + 1) + "]: " + text[i].BarcodeText;
}
}
}
}
}
catch (BarcodeReaderException e)
{
msg1.Obj = "";
e.PrintStackTrace();
}
isReady = true;
myHandler.SendMessage(msg1);
}
else if (msg.What == 200)
{
tv_text.Text = msg.Obj.ToString();
//System.Console.WriteLine("end update UI");
}
}