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How to download multiple images and have one progressBar using AsynTask (Android)


How to download multiple images and have one progressBar using AsynTask (Android)

By : user2956504
Date : November 22 2020, 10:56 AM
it fixes the issue Thank you so much! figured out that my loops were suppose to go inside doInBackground. Also to anyone else having a similar issue. To download multiple files and display a decent progressBar, here is a very great tutorial: http://theopentutorials.com/tutorials/android/dialog/android-download-multiple-files-showing-progress-bar/
code :


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Android download multiple images

Android download multiple images


By : Jayy Fungchukiert
Date : March 29 2020, 07:55 AM
should help you out If the images never change, store them locally on the phone. If they change at regular interval, check the existing dates and download only if necessary. If it's unpredictable, check the local ones against the new server images and download only what is necessary.
In short, store what you can locally and download as little as possible. (Pretend that downloading is like washing your clothes: if they are clean, why waste the time and money to wash them again?)
Android asyntask Custom Adapter load images at wrong position

Android asyntask Custom Adapter load images at wrong position


By : Pilow
Date : March 29 2020, 07:55 AM
I hope this helps you . I think the problem is that you don't stop a previous ImageLoader when a list item is reused: when a list item is reused another ImageLoader is attached to it but without removing the previous that was attached to the same list item instance.
Because of this can happen that the first ImageLoader could finish its job after the last one that sets the wrong image. Also you need to cache the downloaded images otherwise already downloaded images will downloaded again.
Android AsyncTask Download multiple Images

Android AsyncTask Download multiple Images


By : Heather Dailey
Date : March 29 2020, 07:55 AM
wish helps you I recommend to you to use the Universal Image Loader library to download the images in android.
It download the image as well do some more good things like caching the images and manage the memory very tricky.
Android App to download JSON data from server using Asyntask

Android App to download JSON data from server using Asyntask


By : vlad
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further AsyncTask is a good way to achieve this. Search for "async task json". You should find plenty of tutorials. My first attempt would be to write two separate AsyncTasks, the first that downloads the JSON from service A und upon finishing launches the second AsyncTask, passing in the URL that it received from service A. The second AsyncTask then loads the JSON from said URL and saves it into the DB (all in doInBackground).
Download multiple files with one progressbar java / Android

Download multiple files with one progressbar java / Android


By : Wagner Toscano
Date : March 29 2020, 07:55 AM
To fix this issue I am downloading multiple files in an AsyncTask with the help of for() loop. Below code works fine but each file downloaded with its own and single progress bar, I want only one progress bar for all the downloaded files. , I think you have 2 options:
code :
// you can modify the max value of a ProgressDialog, we modify it
// to prevent unnecessary rounding math.
// In the configuration set the max value of the ProgressDialog to an int with
pDialog.setMax(urls.length);

for (int i = 0; i < urls.length; i++) {
    // launch HTTP request and save the file
    //...
    // your code 
    //...

    //advance one step each completed download
    publishProgress();
}

/**
 * Updating progress bar
 */
protected void onProgressUpdate(Integer... progress) {
    pDialog.incrementProgressBy(1);
}
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