我有一个EditText字段的问题.表情符号图像显示,但如果我按正常的键盘退格按钮,我正在更改为表情符号图片的文本显示,我必须删除几个字符,直到图片消失.我正在使用Spannable来做到这一点.

如果用户按下一次退格键,我想让整个傻瓜走开.

这里我使用的代码：

// This is in the keyclicked listener
{
    ...
    smilie = "(angel)";
    break;
    ...
    int cursorPosition = content.getSelectionStart();
    content.getText().insert(cursorPosition,getSmiledText(this,smilie));
    content.getText().insert(cursorPosition + smilie.length()," ");
}

public static boolean addSmiles(Context context,Spannable spannable) {
    boolean hasChanges = false;
    for (Entry<Pattern,Integer> entry : smilies.entrySet()) {
        Matcher matcher = entry.getKey().matcher(spannable);
        while (matcher.find()) {
            boolean set = true;
            for (ImageSpan span : spannable.getSpans(matcher.start(),matcher.end(),ImageSpan.class))
                if (spannable.getSpanStart(span) >= matcher.start()
                        && spannable.getSpanEnd(span) <= matcher.end())
                    spannable.removeSpan(span);
                else {
                    set = false;
                    break;
                }
            if (set) {
                hasChanges = true;
                spannable.setSpan(new ImageSpan(context,entry.getValue()),matcher.start(),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
        }
    }
    return hasChanges;
}

public static Spannable getSmiledText(Context context,CharSequence text) {
    Spannable spannable = spannableFactory.newSpannable(text);
    addSmiles(context,spannable);
    return spannable;
}