9 Commentsto I’m having trouble copying a file inside a script.

1. Anonymous says:

   April 8, 2015 at 10:48 am

   < ![CDATA[

   There isn’t. LL isn’t meant to be a file manager 😉

   
   

   
   

   You’ll need two Streams connected for this.

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2. Anonymous says:

   April 8, 2015 at 3:06 pm

   < ![CDATA[

   Yeah, I figured.  I’m having to use a hack Pierre recommended since the LL wallpaper isn’t accessible via the API yet.  I guess I’ll just have to find a way to handle the Java primitives in javascript.

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3. Anonymous says:

   April 8, 2015 at 3:55 pm

   < ![CDATA[

   I confirm this, you need to use streams but this is not exactly obvious.

   
   

   The loop is quite easy, but you need to use a special syntax to allocate a byte buffer, something like this:

   
   

   var buffer = java.lang.reflect.Array.newInstance(java.lang.Byte.TYPE, 1024);

   
   

   Also don’t forget to close streams in a finally statement.

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4. Anonymous says:

   April 8, 2015 at 4:00 pm

   < ![CDATA[

   That’s the syntax I was looking for!  Although, I got it to work doing this:

   
   

   
   

   LL.bindClass(“java.io.File”);

   
   

   LL.bindClass(“java.io.FileOutputStream”);

   
   

   LL.bindClass(“java.io.FileInputStream”);

   
   

   
   

   var test = new File(“/storage/external_SD/Android/data/net.pierrox.lightning_launcher/files/test-1.txt”);

   
   

   var test2 = new File(“/storage/external_SD/Android/data/net.pierrox.lightning_launcher/files/blah.txt”);

   
   

   copy(test, test2);

   
   

   
   

   function copy(src, dst){

   
   

   var input = new FileInputStream(src);

   
   

   var out = new FileOutputStream(dst);

   
   

   var b = input.read();

   
   

   while(b != -1) 

   
   

   { 

   
   

   out.write(b); 

   
   

   b = input.read();

   
   

   } 

   
   

   input.close(); 

   
   

   out.close();

   
   

   } 

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5. Anonymous says:

   April 8, 2015 at 4:04 pm

   < ![CDATA[

   That works too!!! (although probably not very efficient, this may cause ANR issues).

   
   

   You may also need to do the work in another thread, I believe some Android versions will complain about IO on the UI thread.

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6. Anonymous says:

   April 8, 2015 at 4:10 pm

   < ![CDATA[

   Yeah.  I just wanted to get a POC working, and I was limited without being able to create a byte array.  I think I’m also going to look at a FileChannel operation.  It seems to abstract away some of the parts of the file transfer.  Thanks again!  (Making Java into javascript is hard work!)

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7. Anonymous says:

   April 8, 2015 at 4:17 pm

   < ![CDATA[

   Just a though: maybe java.lang.Runtime.exec with a command line like “cp /from/path /to/path” could do the trick.

   
   

   (but issues with characters to escape and so on)

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8. Anonymous says:

   April 8, 2015 at 4:30 pm

   < ![CDATA[

   That’s genius!  I always forget you can do that.  This works like a charm:

   
   

   
   

   LL.bindClass(“java.lang.Runtime”);

   
   

   
   

   var path1 = “/storage/external_SD/Android/data/net.pierrox.lightning_launcher/files/test-1.txt”

   
   

   var path2 = “/storage/external_SD/Android/data/net.pierrox.lightning_launcher/files/blah.txt”

   
   

   
   

   var rt = Runtime.getRuntime()

   
   

   rt.exec(“cp ” + path1 + ” ” + path2)

   ]]>

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9. Anonymous says:

   April 8, 2015 at 4:31 pm

   < ![CDATA[

   🙂

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