public override void Changed(UITextView textView)
{
Console.WriteLine("-----" + secureText);
if (secureTextViewEntry)
{
string text = textView.Text;
if (text.Length > 0)
{
if ("" == lastText)
{
secureText.DeleteCharacters(new NSRange(secureText.Length - 1, 1));
onlyPassword();
timer.Invalidate();
//base.Changed(textView);
return;
}
else
{
NSString one = new NSString(text.Substring(text.Length - 1));
secureText.Append(one);
NSMutableString temp = new NSMutableString();
for (int i = 0; i < secureText.Length - 1; i++)
{
temp.Append(new NSString("•"));
}
temp.Append(new NSString(secureText.ToString().Substring(secureText.ToString().Length - 1)));
myTextView.Text = temp;
//timer.Invalidate();
timer = NSTimer.CreateScheduledTimer(2, onlyPassword);
}
}
else
{
secureText = new NSMutableString();
}
//base.Changed(textView);
}
else
{
if (textView.Text.Length == 0)
{
secureText = new NSMutableString();
}
else
{
secureText = new NSMutableString();
secureText.SetString(new NSString(textView.Text));
}
timer.Invalidate();
//base.Changed(textView);
}
}
public void Replace()
{
using (var s = new NSMutableString(0)) {
s.SetString((NSString)"Hello World");
var number = s.ReplaceOcurrences((NSString)"World", (NSString)"Xamarin",
NSStringCompareOptions.CaseInsensitiveSearch, new NSRange(0, s.Length));
#if XAMCORE_2_0
Assert.That(number, Is.EqualTo((nuint)1), "Number of replacements");
#else
Assert.That(number, Is.EqualTo(1), "Number of replacements");
#endif
Assert.That(s.ToString(), Is.EqualTo("Hello Xamarin"), "replaced");
Assert.Throws <ArgumentOutOfRangeException> (delegate {
s.ReplaceOcurrences((NSString)"Xamarin", (NSString)"World!",
NSStringCompareOptions.CaseInsensitiveSearch, new NSRange(0, s.Length + 1));
}, "bad 1");
Assert.Throws <ArgumentOutOfRangeException> (delegate {
s.ReplaceOcurrences((NSString)"Xamarin", (NSString)"World!",
NSStringCompareOptions.CaseInsensitiveSearch, new NSRange(1, s.Length));
}, "bad 2");
}
}
public static string GetPinyin(string input)
{
var output = new NSMutableString();
output.SetString(new NSString(input));
var dumy = new NSRange();
output.ApplyTransform(NSStringTransform.MandarinToLatin, false, new NSRange(0, output.Length), out dumy);
return(output.ToString());
}
public void Insert()
{
using (var s = new NSMutableString(-1)) {
s.SetString((NSString)"Hello World");
s.Insert((NSString)"!", s.Length);
Assert.That(s.ToString(), Is.EqualTo("Hello World!"), "end");
Assert.Throws <ArgumentOutOfRangeException> (delegate {
s.Insert((NSString)"@", -1);
}, "negative");
Assert.Throws <ArgumentOutOfRangeException> (delegate {
s.Insert((NSString)"oops", s.Length + 1);
}, "out of range");
}
}
public void Delete()
{
using (var s = new NSMutableString(0)) {
s.SetString((NSString)"Hello World");
s.DeleteCharacters(new NSRange(5, 6));
Assert.That(s.ToString(), Is.EqualTo("Hello"), "deleetd");
Assert.Throws <ArgumentOutOfRangeException> (delegate {
s.DeleteCharacters(new NSRange(0, s.Length + 1));
}, "bad 1");
Assert.Throws <ArgumentOutOfRangeException> (delegate {
s.DeleteCharacters(new NSRange(1, s.Length));
}, "bad 2");
}
}
private void HandleTextChange(object sender, EventArgs e)
{
UITextView customEditor = (UITextView)sender;
if (customEditor.SecureTextEntry)
{
string text = customEditor.Text;
if (text.Length > 0)
{
//If LastText is empty, that means deletion occured.
if ("" == this.LastText)
{ //Delete the last character from the actual text
this.SecureText.DeleteCharacters(new NSRange(this.SecureText.Length - 1, 1));
if (null != timer)
{
timer.Invalidate();
}
return;
}
// If LastText is not empty, that means (a) new character(s) was/were entered.
int lastTextLength = ((this.LastText.ToString()).Length); //Number of characters in LastText.
if (lastTextLength > 1)
{ // If more than one character was entered (usually by pasting)
int NewTextStartIndex = (text.Length - lastTextLength);
string TempNewCharacters = text.Substring(NewTextStartIndex);
// Get all the characters except the last character and add them to the secureText
NSString NewCharacters = new NSString(TempNewCharacters.Substring(0, TempNewCharacters.Length - 1));
SecureText.Append(NewCharacters);
}
// Get and add the last character
NSString LastCharacter = new NSString(text.Substring(text.Length - 1));
this.SecureText.Append(LastCharacter);
// Change all characters to '●' except the last character
NSMutableString temp = new NSMutableString();
for (int i = 0; i < this.SecureText.Length - 1; i++)
{
temp.Append(new NSString("●"));
}
// Add the last character as a plain text to the temp and set that into the editor.
temp.Append(new NSString(this.SecureText.ToString().Substring(this.SecureText.ToString().Length - 1)));
customEditor.Text = temp;
if (null != this.timer)
{
this.timer.Invalidate();
}
// Wait two seconds before changing the last character to '●'.
this.timer = NSTimer.CreateScheduledTimer(2, ChangeToHidden);
}
else
{
this.SecureText = new NSMutableString();
}
}
else
{
// If the password is plain text, then initialize it to the secureText string.
SecureText = new NSMutableString();
SecureText.SetString(new NSString(customEditor.Text));
if (null != timer)
{
this.timer.Invalidate();
}
}
CustomEditor ActualCustomEditor = (CustomEditor)Element;
ActualCustomEditor.PlainText = SecureText.ToString();
}
