Question

我正在尝试使用webview在我的Android项目中为epub阅读器制作“荧光笔”。我正在使用Rangy来获取所选文本。从下面的示例HTML中选择文本后，序列化函数会给我这个值：

2/5/3/5/1/2:0,13/5/3/5/1/2:24

我将其存储在DB中。当用户返回此页面时，我正在检索相同的选择并尝试反序列化但反序列化函数会引发以下错误：

Error in Rangy Serializer module: deserializePosition failed: node <DIV>[7] has no child with index 13, 0

我明白为什么会发生这种情况？即使我试图使用XPath做同样的事情，但仍然是同样的问题。

<html>
<head>
<script></script>
</head>
<body>
<div id="mainpage" class="highlighter-context">
<div>       Some text here also....... </div>
<div>      Some text here also.........</div>
<div>
  <h1 class="heading"></h1>
  <div class="left_side">
<ol></ol>
<h1></h1>
<div class="text_bio">
In human beings, height, colour of eyes, complexion, chin, etc. are 
some recognisable features. A feature that can be recognised is known as 
character or trait. Human beings reproduce through sexual reproduction. In this                
process, two individuals one male and another female are involved. Male produces   
male gamete or sperm and female produces female gamete or ovum. These gametes fuse 
to form zygote which develops into a new young one which resembles to their parent. 
During the process of sexual reproduction 
</div>
  </div>
  <div class="righ_side">
  Some text here also.........
  </div>
  <div class="clr">
    Some text here also.......
  </div>
</div>
</div>
</body>
</html>

任何猜测？

Answer 1

您可能正在使用以下内容：

highlighter.highlightSelection();
rangy.serializeSelection();

如果您在序列化之前运行highlightSelection将无效。这是因为突出显示实际上是在标签中包装文本，这意味着操纵了DOM。

对原始DOM进行反序列化显然不会起作用。尝试更改命令的顺序，以便先进行序列化，然后再使用高亮显示。

更正订单：

rangy.serializeSelection();    
highlighter.highlightSelection();

rangy反序列化不能在webview android上工作

1 个答案: