public override bool OnTouchEvent(TextView widget, ISpannable buffer, MotionEvent e)
{
switch (e.Action)
{
case MotionEventActions.Down:
_pressedSpan = GetTouchableSpan(widget, buffer, e);
if (_pressedSpan != null)
{
_pressedSpan.Pressed = true;
Selection.SetSelection(buffer, buffer.GetSpanStart(_pressedSpan), buffer.GetSpanEnd(_pressedSpan));
}
break;
case MotionEventActions.Move:
var _pressedSpanM = GetTouchableSpan(widget, buffer, e);
if (_pressedSpan != null && _pressedSpanM != _pressedSpan)
{
_pressedSpan.Pressed = false;
_pressedSpan = null;
Selection.RemoveSelection(buffer);
}
break;
default:
if (_pressedSpan != null)
{
_pressedSpan.Pressed = false;
base.OnTouchEvent(widget, buffer, e);
}
_pressedSpan = null;
Selection.RemoveSelection(buffer);
break;
}
return(true);
}
public bool AddSmiles(Context context, ISpannable spannable)
{
var hasChanges = false;
foreach (var entry in Emoticons)
{
var smiley = entry.Key;
var smileyImage = entry.Value;
var indices = spannable.ToString().IndexesOf(smiley);
foreach (var index in indices)
{
var set = true;
foreach (ImageSpan span in spannable.GetSpans(index, index + smiley.Length, Java.Lang.Class.FromType(typeof(ImageSpan))))
{
if (spannable.GetSpanStart(span) >= index && spannable.GetSpanEnd(span) <= index + smiley.Length)
{
spannable.RemoveSpan(span);
}
else
{
set = false;
break;
}
}
if (set)
{
hasChanges = true;
spannable.SetSpan(new ImageSpan(context, smileyImage), index, index + smiley.Length, SpanTypes.ExclusiveExclusive);
}
}
}
return(hasChanges);
}
private void MakeLinkClickable(ISpannable strBuilder, URLSpan span)
{
var start = strBuilder.GetSpanStart(span);
var end = strBuilder.GetSpanEnd(span);
var flags = strBuilder.GetSpanFlags(span);
var clickable = new MyClickableSpan((HtmlLabel)Element, span);
strBuilder.SetSpan(clickable, start, end, flags);
strBuilder.RemoveSpan(span);
}
private static void MakeLinkClickable(ISpannable spannable, URLSpan span)
{
var start = spannable.GetSpanStart(span);
var end = spannable.GetSpanEnd(span);
var flags = spannable.GetSpanFlags(span);
var clickableLink = new ClickableLinkSpan(span.URL);
spannable.SetSpan(clickableLink, start, end, flags);
spannable.RemoveSpan(span);
}
public override bool OnTouchEvent(TextView textView, ISpannable spannable, MotionEvent e)
{
try
{
var action = e.Action;
switch (action)
{
case MotionEventActions.Down:
{
PressedSpan = GetPressedSpan(textView, spannable, e);
if (PressedSpan != null)
{
PressedSpan.SetPressed(true);
Selection.SetSelection(spannable, spannable.GetSpanStart(PressedSpan), spannable.GetSpanEnd(PressedSpan));
}
break;
}
case MotionEventActions.Move:
{
XTouchableSpan touchedSpan = GetPressedSpan(textView, spannable, e);
if (PressedSpan != null && touchedSpan != PressedSpan)
{
PressedSpan.SetPressed(false);
PressedSpan = null !;
Selection.RemoveSelection(spannable);
}
break;
}
default:
{
if (PressedSpan != null)
{
PressedSpan.SetPressed(false);
base.OnTouchEvent(textView, spannable, e);
}
PressedSpan = null !;
Selection.RemoveSelection(spannable);
break;
}
}
}
catch (Exception exception)
{
Methods.DisplayReportResultTrack(exception);
}
return(true);
}
/**
* Adds a highlight background color span to the TextView.
*/
protected void HighlightUrl(TextView textView, ClickableSpanWithText spanWithText, ISpannable text)
{
if (_isUrlHighlighted)
{
return;
}
_isUrlHighlighted = true;
var spanStart = text.GetSpanStart(spanWithText.Span);
var spanEnd = text.GetSpanEnd(spanWithText.Span);
text.SetSpan(new BackgroundColorSpan(textView.HighlightColor), spanStart, spanEnd, SpanTypes.InclusiveInclusive);
textView.SetText(text, TextView.BufferType.Spannable);
Selection.SetSelection(text, spanStart, spanEnd);
}
public override bool OnTouchEvent(TextView widget, ISpannable buffer, MotionEvent e)
{
var action = e.ActionMasked;
if (action == MotionEventActions.Up || action == MotionEventActions.Down)
{
var x = e.GetX();
var y = e.GetY();
x -= widget.TotalPaddingLeft;
y -= widget.TotalPaddingTop;
x += widget.ScrollX;
y += widget.ScrollY;
var layout = widget.Layout;
var line = layout.GetLineForVertical((int)y);
var off = layout.GetOffsetForHorizontal(line, x);
var link = buffer.GetSpans(off, off, Java.Lang.Class.FromType(typeof(ClickableSpan)));
if (link.Length > 0)
{
if (action == MotionEventActions.Up)
{
(link[0] as ClickableSpan).OnClick(widget);
}
else
{
Selection.SetSelection(buffer, buffer.GetSpanStart(link[0]), buffer.GetSpanEnd(link[0]));
}
return(true);
}
else
{
Selection.RemoveSelection(buffer);
}
}
return(false);
}
public override bool OnTouchEvent(TextView textView, ISpannable spannable, MotionEvent e)
{
var action = e.Action;
if (action == MotionEventActions.Down)
{
PressedSpan = GetPressedSpan(textView, spannable, e);
if (PressedSpan != null)
{
PressedSpan.SetPressed(true);
Selection.SetSelection(spannable, spannable.GetSpanStart(PressedSpan), spannable.GetSpanEnd(PressedSpan));
}
}
else if (action == MotionEventActions.Move)
{
XTouchableSpan touchedSpan = GetPressedSpan(textView, spannable, e);
if (PressedSpan != null && touchedSpan != PressedSpan)
{
PressedSpan.SetPressed(false);
PressedSpan = null;
Selection.RemoveSelection(spannable);
}
}
else
{
if (PressedSpan != null)
{
PressedSpan.SetPressed(false);
base.OnTouchEvent(textView, spannable, e);
}
PressedSpan = null;
Selection.RemoveSelection(spannable);
}
return(true);
}
// Taken from https://gist.githubusercontent.com/Cheesebaron/5034440/raw/f962c41c95f8d94457ef9a60e19fe7efa2a50d61/SpannableTools.cs
public static bool AddSmiles(Context context, ISpannable spannable)
{
var hasChanges = false;
foreach (var entry in Emoticons)
{
var smiley = entry.Key;
var smileyImage = entry.Value;
var indices = spannable.ToString().IndexesOf(smiley);
var index = 0;
foreach (var token in spannable.ToString().Split(' '))
{
if (token.Equals (smiley)) {
var set = true;
foreach (ImageSpan span in spannable.GetSpans(index, index + smiley.Length, Java.Lang.Class.FromType(typeof(ImageSpan)))) {
if (spannable.GetSpanStart (span) >= index && spannable.GetSpanEnd (span) <= index + smiley.Length)
spannable.RemoveSpan (span);
else {
set = false;
break;
}
}
if (set) {
hasChanges = true;
spannable.SetSpan (new ImageSpan (context, smileyImage), index, index + smiley.Length, SpanTypes.ExclusiveExclusive);
}
}
index += token.Length + 1;
}
}
return hasChanges;
}
