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How to use Choose file in android without using browse?

Anonymous User 1897 16-Nov-2014

I have an application on android phone. People will download pdf file before using my app, and the pdf file will be saved in a certain folder.

I know the absolute path of the folder, but I don't know the name of the new pdf file people download, so I can't get the absolute path of the pdf apparently.

Is there any method to choose the file by using maybe the file type? (Because I am sure that there is only one pdf file in that folder.) By the way, I don't want to choose file by browse.

Here is the stupid method I used before, but it can't match my demand anymore.

public static final String file_name = "//sdcard//Download//test.pdf";
File myFile = new File(file_name);

Any easy way to solve the problem? Thanks for your help sincerely.

android java  file 
Updated on 17-Nov-2014
Anonymous User

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1 Answers

Tom Cruser

Tom Cruser

17-Nov-2014

Below method will give all the PDF files in Download folder.

String path = Environment.getExternalStorageDirectory().toString()+"/Download";
File f = new File(path);        
File files[] = f.listFiles();   
for (File f : files)
     {
      String fullPath =f.getAbsolutePath();
      int dot =fullPath.lastIndexOf(".");
      String ext = fullPath.substring(dot+ 1);
      if(ext.equals("pdf"))
      {
        //do something with f here
      } 
     } 

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