In my project I have a code for downloading images from a server. In php code I have:
if (is_dir($dir)){ //check if is directory
$files = scandir($dir); //list files
$i=-1;
$result = array();
foreach($files as $file){
$file = $dir.$file; //complete dir of file
if(is_file($file)){ //if it's a file
$i++;
$fileo = @fopen($file,"rb"); //open and write it on $result[$i]
if ($fileo) {
$result[$i] = "";
while(!feof($fileo)) {
$result[$i] .= fread($fileo, 1024*8);
flush();
if (connection_status()!=0) {
@fclose($fileo);
die();
}
}
$result[$i] = utf8_encode($result[$i]); //This prevents null returning on jsonencode
@fclose($fileo);
}
}
}
}else{
echo json_encode(array('Error'));
}
echo json_encode($result); //returns images as an array of strings, each one with all code of an image.
And in java I have an httpost method with asynctask. The problem of this is that I need to wait until all images are downloaded. I have thought that maybe I can download an image with a number and if the number is 0 for example recall to the server to download the next image but I think that maybe is a waste of time calling again the server and listing files again. Is there a better way so I can download image per image instead of all at the same time without calling N times to the sever?
