public int[] readProgress() {
int progress[] = new int[2];
try {
DataInputStream in =
new DataInputStream(new BufferedInputStream(new FileInputStream(resume_file)));
progress[0] = in.readInt();
progress[1] = in.readInt();
in.close();
} catch (FileNotFoundException e) {
Log.e(TAG, "readProgress file not found.");
} catch (IOException e) {
Log.e(TAG, e.getMessage());
}
return progress;
}
public synchronized void writeProgress(int current_file, int total_files) {
try {
DataOutputStream out =
new DataOutputStream(new BufferedOutputStream(new FileOutputStream(resume_file, false)));
out.writeInt(current_file);
out.writeInt(total_files);
out.flush();
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
Log.e(TAG, "writeProgress resume.txt not found.");
} catch (IOException ex) {
Log.e(TAG, "Unable to create resume.txt.");
}
}
@Override
public void onComplete(String response, Object state) {
try {
Log.i(TAG, response);
json = Util.parseJson(response);
// photos are in the form of a json array
child = json.getJSONArray("data");
int total = child.length();
// contains links to photos
links = new ArrayList<String>(total);
// adds link to each photo to our list after replacing the "https" from url
// DownloadManager does not support https in gingerbread
for (int i = 0; i < total; i++) {
photo_json = child.getJSONObject(i);
if (dl_high_res_pics) {
JSONArray image_set = photo_json.getJSONArray("images");
// highest resolution picture has the index zero in the images jsonarray
JSONObject highest_res_pic = image_set.getJSONObject(0);
String http_replaced =
highest_res_pic.getString("source").replaceFirst("https", "http");
links.add(i, http_replaced);
} else {
// source property of the json object points to the photo's link
String http_replaced = photo_json.getString("source").replaceFirst("https", "http");
links.add(i, http_replaced);
}
}
download_photos.this.runOnUiThread(
new Runnable() {
public void run() {
// mytask = new DownloadImageTask();
// mytask.execute(links);
// start downloading using asynctask
// new DownloadImageTask().execute(links);
// downloadThread.setPath(path);
// downloadThread.setWholeTasks(links.size());
if (resume_file.exists()) {
initial_value = readProgress()[0];
final_value = links.size();
// case if the task is already completed
if (initial_value == final_value) {
completed = true;
resume_pause.setVisibility(View.GONE);
progress_download.setMax(final_value);
progress_download.setProgress(0); // bug in progress bar
progress_download.setProgress(initial_value);
progress_text.setText("Completed.");
mtext.setText(
getText(R.string.download_textview_message_1)
+ " "
+ path.toString()
+ ". ");
}
// case if some of the photos are already downloaded
else {
progress_download.setMax(links.size());
// progress_download.setProgress(0); //bug in progress bar
progress_download.setProgress(initial_value);
// N.B if i= initial_value -1, then one image will be downloaded again. so to
// save cost we start with i = initial_value
for (int i = initial_value; i < links.size(); i++) {
mtext.setText(
getText(R.string.download_textview_message_1)
+ " "
+ path.toString()
+ ". ");
// downloadThread.setRunningTask(i + 1);
downloadThread.enqueueDownload(
new DownloadTask(
links.get(i), path, i + 1, final_value, download_photos.this));
}
}
}
// case if the task is entirely new task
else {
for (int i = 0; i < links.size(); i++) {
mtext.setText(
getText(R.string.download_textview_message_1)
+ " "
+ path.toString()
+ ". ");
// downloadThread.setRunningTask(i + 1);
downloadThread.enqueueDownload(
new DownloadTask(
links.get(i), path, i + 1, links.size(), download_photos.this));
}
}
}
});
} catch (JSONException ex) {
Log.e(TAG, "JSONEXception : " + ex.getMessage());
}
}