public static QRCodeCreater Instance()
{
if (null == instance)
{
instance = new QRCodeCreater();
}
return(instance);
}
public override void ViewDidLoad()
{
this.NavigationItem.Title = "Home";
nfloat locationX = (UIScreen.MainScreen.Bounds.Width - 80) / 2;
nfloat locationY = UIScreen.MainScreen.Bounds.Height - 50;
UIButton btnScan = new UIButton(UIButtonType.Custom);
btnScan.Frame = new CGRect(locationX, locationY, 80, 20);
btnScan.SetTitle("Sacn", UIControlState.Normal);
btnScan.SetTitleColor(UIColor.Black, UIControlState.Normal);
btnScan.TouchUpInside += delegate {
this.ShowQRCodeReaderViewController((result) => {
UIAlertView alert = new UIAlertView("Result", result, null, "OK", null);
alert.Show();
});
};
this.Add(btnScan);
nfloat padding = 20;
UITextField tf = new UITextField();
tf.Frame = new CGRect(20, 100, UIScreen.MainScreen.Bounds.Width - 2 * padding, 40);
tf.Text = "Tap ImageView to create QR code";
tf.BackgroundColor = UIColor.White;
this.Add(tf);
nfloat length = UIScreen.MainScreen.Bounds.Width * 0.5f;
nfloat imageVLocationX = (UIScreen.MainScreen.Bounds.Width - length) / 2;
UIImageView showQRCodeImgView = new UIImageView(new CGRect(imageVLocationX, tf.Frame.Y + tf.Frame.Height + 50, length, length));
showQRCodeImgView.BackgroundColor = UIColor.White;
this.Add(showQRCodeImgView);
UITapGestureRecognizer tapGR = new UITapGestureRecognizer(() => {
Console.WriteLine("Create a new code according to the text");
tf.ResignFirstResponder();
string sourceStr = tf.Text.Trim();
showQRCodeImgView.Image = QRCodeCreater.Instance().GetQRCodeImageByString(sourceStr, showQRCodeImgView.Frame.Width);
});
this.View.AddGestureRecognizer(tapGR);
}