getPageText method

String getPageText(
  1. int index
)

获取指定页的文字

Implementation

String getPageText(int index) {
  if (_pageOffsets == null) {
    throw Exception('先调用分页处理方法');
  }

  final start = _pageOffsets![index];
  final end = (index + 1 < _pageOffsets!.length)
      ? _pageOffsets![index + 1]
      : _characters.length;

  return _characters.skip(start).take(end - start).toString();
}