从内部存储打开后，Android PDF立即关闭 [英] Android PDF closes immediately after opening from Internal storage

问题描述

从服务器下载pdf文件并将其存储在内部存储器后，我试图访问pdf文件.问题是在成功下载文件后，它会打开一秒钟，然后立即关闭.请有人告诉我正确的做法是什么.先感谢您.

Im trying to access a pdf file after downloading it from the server and storing it in internal storage. The problem is after successfully downloading the file it opens for a split second then closes immediately. Please can someone tell me whats the proper way to do it. Thank you in advance.

这是我下载pdf文件的代码:

Here's my code for downloading my pdf file:

文件文件=新文件(getFilesDir()，"pdfFolder");
if(！file.isDirectory())file.mkdirs();
文件outputFile =新文件(文件， "samples.pdf")；
//URLConnection ....
//InputStream ....
FileOutputStream fileOutputStream =新的FileOutputStream(outputFile);

File file = new File(getFilesDir(),"pdfFolder");
if(!file.isDirectory()) file.mkdirs();
File outputFile = new File(file, "samples.pdf");
//URLConnection....
//InputStream....
FileOutputStream fileOutputStream = new FileOutputStream(outputFile);

这是查看我的pdf文件的代码:

Here's my code for viewing my pdf file:

文件pdfFile =新文件(getFilesDir()，"/pdfFolder/samples.pdf");
意图pdfIntent =新意图(Intent.ACTION_VIEW);
pdfIntent.setDataAndType(Uri.fromFile(pdfFile)，"application/pdf"); pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(pdfIntent);

File pdfFile = new File(getFilesDir(),"/pdfFolder/samples.pdf");
Intent pdfIntent = new Intent(Intent.ACTION_VIEW);
pdfIntent.setDataAndType(Uri.fromFile(pdfFile),"application/pdf"); pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(pdfIntent);

注意:绝对路径指向此"/data/user/0/com.package.name/pdfFolder/sample.pdf"

Note : the absolute path points to this "/data/user/0/com.package.name/pdfFolder/sample.pdf"

推荐答案

尝试设置

 pdfIntent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);

代替

pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

对我有用.

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