Using PhoneGap FileWriter.write for “big” files

Question

I have a problem in my PhoneGap app. I would like to write a file of 15 MB. If I try the OS pulls more and more memory and the app crashes without message. I can reproduce this

Answer 1

@Imskull's answer is the correct one ... i just want to put in the one for Blob (make sure it is blob and not arraybuffer) which is updated based on the one on top ... what i also added was a line to assure myself i am adding to the end of file ... it is more than enough to make ur app stop crashing (on ios mainly :P )

function gotFileWriter(writer) {
  function writeFinish() {
    // ... your done code here...
  }

  var written = 0;
  var BLOCK_SIZE = 1*1024*1024; // write 1M every time of write
  function writeNext(cbFinish) {
    writer.onwrite = function(evt) {
      if (written < data.size)
        writeNext(cbFinish);
      else
        cbFinish();
    };
    if (written) writer.seek(writer.length);
    writer.write(data.slice(written, written + Math.min(BLOCK_SIZE, data.size - written)));
    written += Math.min(BLOCK_SIZE, data.size - written);
  }
  writeNext(writeFinish);
}