/**
* Convert emoji characters of the given Spannable to the according emojicon.
*
* @param context
* @param text
* @param emojiSize
* @param index
* @param length
*/
public static void AddEmojis(Context context, ISpannable text, int emojiSize, int index, int length)
{
int textLength = text.Length();
int textLengthToProcessMax = textLength - index;
int textLengthToProcess = length < 0 || length >= textLengthToProcessMax ? textLength : (length+index);
// remove spans throughout all text
//EmojiconSpan[]
var oldSpans = text.GetSpans(0, textLength,Java.Lang.Class.FromType(typeof(EmojiconSpan)));
for (int i = 0; i < oldSpans.Length; i++) {
text.RemoveSpan(oldSpans[i]);
}
int skip;
for (int i = index; i < textLengthToProcess; i += skip)
{
skip = 0;
int icon = 0;
char c = text.CharAt(i);
if (IsSoftBankEmoji(c))
{
icon = GetSoftbankEmojiResource(c);
skip = icon == 0 ? 0 : 1;
}
if (icon == 0)
{
int unicode = Character.CodePointAt(text, i);
skip = Character.CharCount(unicode);
if (unicode > 0xff)
{
icon = GetEmojiResource(context, unicode);
}
if (icon == 0 && i + skip < textLengthToProcess)
{
int followUnicode = Character.CodePointAt(text, i + skip);
if (followUnicode == 0x20e3)
{
int followSkip = Character.CharCount(followUnicode);
switch (unicode)
{
case 0x0031:
icon = Resource.Drawable.emoji_0031;
break;
case 0x0032:
icon = Resource.Drawable.emoji_0032;
break;
case 0x0033:
icon = Resource.Drawable.emoji_0033;
break;
case 0x0034:
icon = Resource.Drawable.emoji_0034;
break;
case 0x0035:
icon = Resource.Drawable.emoji_0035;
break;
case 0x0036:
icon = Resource.Drawable.emoji_0036;
break;
case 0x0037:
icon = Resource.Drawable.emoji_0037;
break;
case 0x0038:
icon = Resource.Drawable.emoji_0038;
break;
case 0x0039:
icon = Resource.Drawable.emoji_0039;
break;
case 0x0030:
icon = Resource.Drawable.emoji_0030;
break;
case 0x0023:
icon = Resource.Drawable.emoji_0023;
break;
default:
followSkip = 0;
break;
}
skip += followSkip;
}
else
{
int followSkip = Character.CharCount(followUnicode);
switch (unicode)
{
case 0x1f1ef:
icon = (followUnicode == 0x1f1f5) ? Resource.Drawable.emoji_1f1ef_1f1f5 : 0;
break;
case 0x1f1fa:
icon = (followUnicode == 0x1f1f8) ? Resource.Drawable.emoji_1f1fa_1f1f8 : 0;
break;
case 0x1f1eb:
icon = (followUnicode == 0x1f1f7) ? Resource.Drawable.emoji_1f1eb_1f1f7 : 0;
break;
case 0x1f1e9:
icon = (followUnicode == 0x1f1ea) ? Resource.Drawable.emoji_1f1e9_1f1ea : 0;
break;
case 0x1f1ee:
icon = (followUnicode == 0x1f1f9) ? Resource.Drawable.emoji_1f1ee_1f1f9 : 0;
break;
case 0x1f1ec:
icon = (followUnicode == 0x1f1e7) ? Resource.Drawable.emoji_1f1ec_1f1e7 : 0;
break;
case 0x1f1ea:
icon = (followUnicode == 0x1f1f8) ? Resource.Drawable.emoji_1f1ea_1f1f8 : 0;
break;
case 0x1f1f7:
icon = (followUnicode == 0x1f1fa) ? Resource.Drawable.emoji_1f1f7_1f1fa : 0;
break;
case 0x1f1e8:
icon = (followUnicode == 0x1f1f3) ? Resource.Drawable.emoji_1f1e8_1f1f3 : 0;
break;
case 0x1f1f0:
icon = (followUnicode == 0x1f1f7) ? Resource.Drawable.emoji_1f1f0_1f1f7 : 0;
break;
default:
followSkip = 0;
break;
}
skip += followSkip;
}
}
}
if (icon > 0)
{
text.SetSpan(new EmojiconSpan(context, icon, emojiSize), i, i + skip, SpanTypes.ExclusiveExclusive);
}
}
}
