Return the Spans for this specific Effect within a a certain Spannable for a given Selection. @return The returned array of spans, @NonNull.

Create an Span for this effect. This method is used in applyToSelection(RTEditText, V). If the Span can't be created only with V as value parameter th

dp 转 px 注意正负数的四舍五入规则 @param dp dp值 @return 转换后的像素值

@return Context

Expand the selection to the left and/or right depending on the spanType: http://developer.android.com/reference/android/text/Spanned.html#SPAN_EXCLU

Apply this effect to the selection. If value is Null then the effect will be removed from the current selection. @param editor The editor to apply th

Check whether the effect exists in the currently selected text of the active RTEditText. @param editor The RTEditText we want the check. @param spanT

Subclasses return the class of the span the effect supports. This method is used to retrieve the spans in getSpans(Spannable, Selection) @return the

@param context context

Remove all effects of this type from the current selection.

Spanned() unfortunately doesn't respects the mark/point flags (SPAN_EXCLUSIVE_EXCLUSIVE etc.). If a selection starts at the end or ends at the start o

获取屏幕高度 单位：像素 @return 屏幕高度