Image url to file android

Android Save Bitmap to Gallery – Download and Save Image from URL

Things are changing very fast in tech world. And if you want to be an Android Developer, then be ready to keep upgrading yourself. Actually this learning curve is the best thing that I like about this industry (My personal opinion). So, here is a new about about “Android Save Bitmap to Gallery”.

Saving file to internal storage, is required many times in our projects. We have done this thing many times before, but the method for saving file to internal storage has been changed completely for devices running with OS >= android10.

Basically your old way of saving files will not work with new versions of android, starting with android10. You can still go the old way, but it is a temporary solution. In this post we are going to talk about all these things.

File Storage in Android

Now, we have two kinds of storage to store files.

• App-specific storage: The files for your application only. Files store here cannot be accessed outside your application. And you do not need any permission to access this storage.
• Shared Storage: The files that can be shared with other apps as well. For example Media Files (Images, Videos, Audios), Documents and other files.

To know more details about File Storage in Android, you can go through this official guide.

In this post we will be saving a Bitmap to Shared Storage as an Image File.

To demonstrate saving file to internal storage in android10, I will be creating an app that will fetch an Image from the Given URL and then it will save it to external storage.

Android Save Bitmap to Gallery

Let’s first start with the main function, that we need to save a Bitmap instance to gallery as an Image File.

Let’s understand the above function.

• We have the bitmap instance that we want to save to our gallery in the function parameter.
• Then I’ve generated a file name using System . currentTimeMillis () , you apply your own logic here if you want a different file name. I used it just to generate a unique name quickly.
• Now we have created an OutputStream instance.
• The main thing here is we need to write two logics, because method of android 10 and above won’t work for lower versions; and that is why I have written a check here to identify if the device is > = VERSION_CODES . Q .
• Inside the if block, first I’ve got the ContentResolver from the Context .
• Inside ContentResolver , we have created ContentValues and inside ContentValues we have added the Image File informations.
• Now we have got the Uri after inserting the content values using the insert () function.
• After getting the Uri , we have opened output stream using openOutputStream () function.
• I am not explaining the else part, as it is the old way, that we already know.
• Finally using the output stream we are writing the Bitmap to stream using compress () function. And that’s it.

Now let’s build a complete application that will save image from an URL to the external storage.

Creating an Image Downloader Application

Again we will start by creating a new Android Studio project. I have created a project named ImageDownloader. And now we will start by adding all the required dependencies first.

Adding Permissions

For this app we require Internet and Storage permission. So define these permision in your AndroidManifest . xml file.

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Downloading File or Image and Displaying in Android

In android, you can easily download any files or images from internet/URL. There are many ways to download images from internet and in this tutorial you will learn one of the easiest ways to download image from internet. Showing download progress derives a good user experience. So in this tutorial, you will also learn to display a progress bar that runs when the app downloads an image or files from the web.

Once the image is completely downloaded, the progress bar is disabled and the downloaded image is shown in an image view.

Creating New Android Project

Let’s start by creating new android project with com.viralandroid.androiddownloadingfile package name and Android Downloading File as project name.

XML Layout File

Open your main XML layout file and add a button to download file or image when button is clicked. And also add an ImageView to show downloaded image. Don’t forget to give an id to both Button and ImageView. Your XML layout file will look like below.

In main activity class, you need to implement necessary classes and buttons. Progress dialog can be shown using ProgressDialog class which is a subclass of normal AlertDialog class.

Also you need to add Async background thread to download file from web/URL. Add asynctask class and name it as DownloadFromURL and extend AsyncTask in your main activity.

After downloading image from internet, read the downloaded image from the sdcard and display it in an image view.

Following is the complete code of java activity file.

Adding Internet and Writing to SdCard Permission

Before running your project, open your AndroidManifest.xml file and add android.permission.INTERNET and android.permission.WRITE_EXTERNAL_STORAGE . Your AndroidManifest.xml file will look like below.

Now, run your app by clicking Run button. Make sure you have internet connection to download image or file from web URL. Click the download button; you will see the progress bar with download progress in percentage. After download is completed, the downloaded image is shown in the ImageView, below the download button.

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Learn2Crack

Android Load Image from Internet (URL) – Example

Sometimes you may need to load an Image from URL in your Android app. If you are searching for a way, this tutorial shows you how to do this with less effort.

Here I have created an Android Studio project with package com.learn2crack.loadimageurl also Activity as MainActivity and layout as activity_main.

Adding Required Permissions

We need to add Internet permission in our AndroidManifest.xml.

Our activity layout has a Button and an ImageView to display the image.

Loading image via the Internet is time-consuming and if done in the main thread it makes the UI unresponsive . So we use AsyncTask to do this in a background thread. The decodeStream() method of the BitmapFactory class is used to load the image. We create a Listener interface to pass the image to Main Activity. The onImageLoaded() method will be called if the image is fetched successfully. The onError() method will be called if an error occurs.

The MainActivity implements the Listener interface. The fetched bitmap is set to ImageView using setImageBitmap() method. If an error occurs a Toast is displayed.

Try this in an Emulator or your own device.

Complete Project Files

You can download the complete project as zip or fork from our Github repository.

Note :
Last Updated On : Oct 15, 2016

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Android Loading Image from URL (HTTP)

I am writing this tutorial as lot of people are asking me about loading an image into imageview. Just by adding url to ImageView won’t load directly. Instead we need to store the image into cache (temporary location) and attach to ImageView. This can be achieved just by calling couple of lines and don’t forget to add required classes to your project.

1. Create a new project in Eclipse IDE by navigating to File ⇒ New ⇒ Android Project and fill the required details.
2. Inorder to load images from an url we first need to store the image in a temporary location and once it is downloaded it should be added to ImageView. To create a temporary file we need to access device external storage. Add required permission to AndroidManifest.xml file.

To access internet required permission is – INTERNET
To access external storage required permission is – WRITE_EXTERNAL_STORAGE

3. For testing purpose create a simple ImageView in your main.xml file

4. Open your main activity and type the following code. Whenever you wan’t to show an image from url just call the following code.

5. Add following classes in your project and run the project.

Required Classes

ImageLoader.java

FileCache.java

Utils.java

Hi there! I am Founder at androidhive and programming enthusiast. My skills includes Android, iOS, PHP, Ruby on Rails and lot more. If you have any idea that you would want me to develop? Let’s talk: [email protected]

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hello, thank you for tutorial. Unfortunately, it works for me only on emulator and when i install it on my phone, images won’t load. Why does this happen?

and I need to tell that i have 83 mb of free memory on SD card and 50 mb free internal memory

Can Someone help me how can i integrate progressbar in this code? please!

realy thanks man… works fine…

There is a problem with the ImageLoader class. You see, when I added the BitmapFactory.Options o2 under decodeFile(File f) method, I get an “Unreachable Code” error status. What should I do?

no image will be show only loader image is shown help me whats the problem

Raise the REQUIRED_SIZE.

This tutorial is the worst! It is due by updates, instead of the image loaded properly from the URL, I got corrupted image as a result. Look at my sample.

hello..i have to load images & and data from webservices…can u plz help me….

this is what you want

@pratik butani. how to load info like(username ,intrest,gender ,,) in this code

u can use universal image loader library for that…………….

I want to display image in ListVIew From PHP Server or web server .
But I need to set my Enulator HeapSize more than 32 MB. It Generate Errors.
Can I Use Above Code to Display Image in List View From Server.
Help Me.
I am your website great FAN.

Hi
this tutorial is so good
i read about a lib for developer games in android [libgdx]
can you do tutorials about this?

i want to show image in large size so i replace _s by _n but it save it as small,as follow:
String _n=_s.replace(“_s.jpg”, “_n.jpg”);
imageLoader2.DisplayImage(_n, picture);

plz could any one help me?

break the json into pices until you get the url

@anonim …..plzzzz explain how to code to get (username ,…gender,…etc) i m also using json webservic url . aftr login

Hi Ravi
This tutorial is very helpful to me please post the dynamic grid view (Images from server) at least please give me a sugeestions

Please give me code to display multiple images from MYSQL DB with help of php webservice

hi did u got solution of that image blurred .

With the same code when i replace image url it throws FileNotFound Exception . i m stuck with it. Any idea?

sir i have same problem
and i have already add this permision

Thnaks this is very helpful..

Hi Ravi… Its Fantastic Tutorial.. Thanks a lot.

Here I want to Update Image directly in My Folder, how can i update without passing ImageVIew object.

i have tried like this:

It’s giving me Error…

what can i do… Please Reply me…

Hello sir i am getting too many redirects exception please help me out.

hi ravi …great tutorial ….thankz for this..

then can you provide the API php code for how can i add image to my database and retrieve from it and send to my android app using json…..

Hi Ravi, I haven’t tried this yet, but I want to know if I can use this for populating listview with images? Thanks!

hi ravi …can i also use this .code to show profile information(user name,intresrt,gender…user_image….) aftr login……..from the webservice

Hi Ravi,
How can i set size image from your project, image downloaded and show on device too small than this link:
Thanks so much

That would be nicer if you actually wrote this code.

Hi, thanx for the good tutorial but i want to load multiple images ho to do that?

Pls help me out!
Why i use this link:
above sample can’t load image, return bitmap=null;

Reading image from URL can be performed inside AsynTask as it should not affect the current Activity. Using AysnTask will run downloading image from URL as separate thread.
Regards,
Udhay
http://programmerguru.com

Hi, How to store the Images in internal memory of the phone? In this tutorial we are using External memory for cache

hi , The tutorial helped me a lot…

I have one question though.. Where can I change the size of the image which is downloaded?

did not works with images in a listview

GREAT TUTORIAL i use it to my app – its work perfect!:)
i m asking your help guys
i use my personal String url – JSON that i downloads about 500 images from my Json!
when i scroll the list view fast i
MUST HAVE A SPINNER PROGRESS BAR IN EVERY ROW IN THE LIST VIEW UNTIL THE IMAGE SHOW/COMPLIT –
PLEASE HELP ME WITH THIS

This might help

hi. What is R.drawable.loader? I ask because my program does not recognize it

It is an image name exists in the drawable folder

Its working but i am unable to understand this code. It would be lot better if you explain the working of this project.
Thanks

nice this is so good

Hi Ravi, where do i need to recycle the bitmap? im having trouble whenever i re-open my app using these codes. it says out of memory. thanks

Hi, may i know what is the R.drawable.loader. If it was a code/ image may i have it cause i dont have it on my drawable folder. Thanks in advance.

Got it, just an image.

Im using a fragment and this how i use it:

ImageLoader imgLoader = new ImageLoader(getActivity().getApplicationContext());

public void DisplayImage(String url, int loader, ImageView imageView)
<
stub_id = loader;
imageViews.put(imageView, url);
Bitmap bitmap=memoryCache.get(url);
if(bitmap!=null)
imageView.setImageBitmap(bitmap);
else
<
queuePhoto(url, imageView);
imageView.setImageResource(loader);
>
>
And im getting an error when i call the java class. What is the problem on my code?

ImageLoader imgLoader = new ImageLoader(getActivity() );

hi ravi i want to know ….i want to set image in circle …i m using this code …..so whare to edit ..what to edit in code…..plzzzz rply fast

Very helpful, thanks

i ravi i m using this code its working i have i query ….i want to display image in size as i want …….can u tell me how to increse/decrease size of image which is comming from url

i ravi i m using this code its working i have i query ….i want to display image in size as i want …….can u tell me how to increse/decrease size of image which is comming from url….plzz reply fast

What if I want to make the extension of string image_url automatically detect whether .jpg or .png?
// Image url
String image_url = “http://api.androidhive.info/images/sample.jpg”; // or png?

I’m confused with this function”boolean imageViewReused(PhotoToLoad photoToLoad)”,could you tell me what it is used for?

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