Autojs learning - achieve file download progress

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Practice process

/** * @ function   The floating window shows the progress of file download  */

var app Download address  =
  ' Your download address ';

let url = app Download address ; // update_list.url
var filePath = files.join(files.getSdcardPath(), 'myApp.apk');
log('url=' + url);
log('filePath=' + filePath);
download(url, filePath);

function download(url, filePath) {
    
  importClass('java.io.FileOutputStream');
  importClass('java.io.IOException');
  importClass('java.io.InputStream');
  importClass('java.net.MalformedURLException');
  importClass('java.net.URL');
  importClass('java.net.URLConnection');
  importClass('java.util.ArrayList');

  var url = new URL(url);
  var conn = url.openConnection(); //URLConnection
  var inStream = conn.getInputStream(); //InputStream
  var fs = new FileOutputStream(filePath); //FileOutputStream
  var connLength = conn.getContentLength(); //int
  var buffer = util.java.array('byte', 1024); //byte[]
  var byteSum = 0; // Total file size read 
  var byteRead; // Every time I read byte Count 
  log(' File size to download =');
  log(connLength);
  var threadId = threads.start(function() {
    
    var w = floaty.rawWindow(
      <vertical gravity="center" w="{
    {device.width}}px" h="{
    {device.height}}px">
        <horizontal layout_gravity="center" gravity="center" bg="#ffcc00">
          <text textSize="39sp"> Download progress </text>
          <text textSize="39sp" id="progressNum">
            0
          </text>
        </horizontal>
      </vertical>
    );
    while (1) {
    
      var  File size currently written  = byteSum;
      var progress = ( File size currently written  / connLength) * 100;
      if (progress > 0.1) {
    
        var progress = parseInt(progress).toString() + '%';
        ui.run(function() {
    
          w.progressNum.setText(progress);
        });
        if ( File size currently written  >= connLength) {
    
          break;
        }
      }
      sleep(1000);
    }
  });
  while ((byteRead = inStream.read(buffer)) != -1) {
    
    byteSum += byteRead;
    // current time 
    currentTime = java.lang.System.currentTimeMillis();
    fs.write(buffer, 0, byteRead); // Read 
  }
  threadId && threadId.isAlive() && threadId.interrupt();
  toastLog(' Download complete ');
}

other

author ： Xiaokong and Xiaozhi Xiaokong
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