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1
Question by nixius · Mar 26, 2015 at 01:32 PM · android

Android simple read file from SD card

Hello,

I have read many posts on this but I am still confused, so please bear with me!

I have a config file for my unity app called test.cfg. I want this to live on my device in say /sdcard/MyConfig/test.cfg and be accessible to configure externally to the Application.

The config file contains data that is likely to change so I want to be able to drop a new test.cfg over the top of it without an application re-installation (since we don't have access to the data/data/com.... directory).

Currently working on windows I have:

 FileInfo theSourceFile = null;
 StreamReader reader = null;

 theSourceFile = new FileInfo(Application.dataPath + "/test.cfg");
 reader = theSourceFile.OpenText();
 
 if ( reader != null )
 {
     string txt;
     // Read each line from the file
    while ( (txt = reader.ReadLine()) != null )
        Debug.Log("-->" + txt);


Please note this is edited to remain succinct.

I am currently using (Application.dataPath + "/test.cfg") to access the file on windows. If I didn't need to edit this after deployment I could probably mess around with persistantDataPath instead however, this is not the case.

What I basically want, is something similar to the following (excuse the semi-Pseudo Code):

 if(OS_Is_Android())
 {
   // I read briefly about there being a function to get the sd card path
   string validPathForAllDevices = Environment.GetSDCardPath();
   SomeFileObj file = new SomeFileObj(validPathForAlDevices+"/AppConfigFolder/test.cfg");
   SomeStreamReader reader = new SomeStreamReader(file);
 
   While(reader.NotEOF())
   {
     // Do some stuff with each line
   }
 }
 else if(OS_Is_Windows())
 {
   // Do what i did originally
 }

I'm sure there is a somewhat simple way like above (although doubtfully with so few lines). Any help with this will be greatly appreciated as I'm starting to go grey =)

Thanks, nixius

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