如何解决只读文件系统错误在Android编程与eclipse [英] how to solve read only file system error in android programming with eclipse

问题描述

这是我用来创建pdf文件的代码，但是发生错误

 / Image.pdf：打开失败：EROFS（只读文件系统）
  

这是我的按钮点击代码：

  Document document = new Document（）; 
 PdfWriter.getInstance（document，new FileOutputStream（Image.pdf））; 
 document.open（）; 
 Image image1 = Image.getInstance（watermark.png）; 
 document.add（image1）; 
 String imageUrl =http://jenkov.com/images/20081123-20081123-3E1W7902-small-portrait.jpg; 
 Image image2 = Image.getInstance（new URL（imageUrl））; 
 document.add（image2）; 
 document.close（）; 
  

解决方案

尝试在sdcard根目录中写pdf： p>

  PdfWriter.getInstance（document，new FileOutputStream（Environment.getExternalStorageDirectory（）。getAbsolutePath（）+Image.pdf））; 
  

I am developing a program in which i must create pdf file inside application.

This is the code that i use for creating pdf file but an error occurred that say

"/Image.pdf:open failed:EROFS(read-only file system)"

This is my button click code:

Document document = new Document();
PdfWriter.getInstance(document,new FileOutputStream("Image.pdf"));
document.open();
Image image1 = Image.getInstance("watermark.png");
document.add(image1);
String imageUrl = "http://jenkov.com/images/20081123-20081123-3E1W7902-small-portrait.jpg";
Image image2 = Image.getInstance(new URL(imageUrl));
document.add(image2);
document.close();

解决方案

Try to write pdf in sdcard root directory:

PdfWriter.getInstance(document,new FileOutputStream(Environment.getExternalStorageDirectory().getAbsolutePath()+"Image.pdf"));

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