Facebook's Fresco is the newest and IMO the most advanced library that takes image management to a new level: from keeping Bitmaps off the java heap prior to Lollipop to supporting animated formats and progressive JPEG streaming. To learn more about ideas and techniques behind Fresco, refer to this post. The basic usage is quite simple. Note that you'll need to call Fresco. Initializing Fresco more than once may lead to unpredictable behavior and OOM errors.
Fresco uses Drawee s to display images, you can think of them as of ImageView s:. As you can see, a lot of stuff including transformation options gets already defined in XML, so all you need to do to display an image is a one-liner:.
Fresco provides an extended customization API, which, under circumstances, can be quite complex and requires the user to read the docs carefully yes, sometimes you need to RTFM. Note that the following text reflects my personal opinion and should not be taken as a postulate. In case you missed that, the Github link for the demo project. I have just came from solving this problem on and I would like to share the complete code that can download, save to the sdcard and hide the filename and retrieve the images and finally it checks if the image is already there.
The url comes from the database so the filename can be uniquely easily using id. Why do you really need your own code to download it? How about just passing your URI to Download manager? I have a simple solution which is working perfectly. The code is not mine, I found it on this link. Here are the steps to follow:. It needs a context, better to use the pass in the application context by getApplicationContext.
This method can be dumped into your Activity class or other util classes. This private class need to be placed in your Activity class as a subclass.
After the image is downloaded, in the onPostExecute method, it calls the saveImage method defined above to save the image. The AsyncTask for downloading the image is defined, but we need to execute it in order to run that AsyncTask.
To do so, write this line in your onCreate method in your Activity class, or in an onClick method of a button or other places you see fit.
IMO this solves the issue! If you want further steps such as load the image you can follow these extra steps:. After the image is downloaded, we need a way to load the image bitmap from the internal storage, so we can use it. This method takes two paramethers, a context and an image file name, without the full path, the context.
Now we have everything we needed for setting the image of an ImageView or any other Views that you like to use the image on. Droidman post is pretty comprehensive. Volley works good with small data of few kbytes.
When I tried to use the 'BasicImageDownloader. I used Volley in another test app and that kept crashing because of leaks so I am worried about using Volley for the image downloader images can be few kB. I used Picasso and it worked well, there is small change probably an update on Picasso from what is posted above. Below code worked for me:. As Google tells, for now, don't forget to add also readable on external storage in the manifest :.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to download and save an image in Android Ask Question. Asked 8 years, 8 months ago. Active 2 months ago. Viewed k times. How do you download and save an image from a given url in Android? Improve this question. Lance Roberts Droidman Droidman Add a comment. Active Oldest Votes. Edit as of Just displaying an image using Picasso is as simple as: Picasso.
It uses its own ImageLoader that once initialized has a global instance which can be used to download images in a single line of code: ImageLoader.
I have included examples for progressive JPEG's and animated images into the sample project. Conclusion - "I have learned about the great stuff, what should I use now?
If your app saves images or other files as a result of a user or an automated action and you don't need the images to be displayed often, use the Android DownloadManager. And here's the BasicImageDownloader. Bitmap; import android. BitmapFactory; import android. AsyncTask; import android. If there are problems with WhatsApp not automatically downloading images and videos on your phone, you should take a look at the media auto-download settings in WhatsApp.
Tap on the options under it and allow the type of media files that should download automatically when connected to mobile data or Wi-Fi, depending on your needs. Both Android and iPhone come with data-saving modes. Your phone should have sufficient storage to be able to download media files from WhatsApp. If you still need more space, learn other ways to free up space on Android and iPhone.
If you are using a memory card on your Android phone, often that is responsible for causing media download issues in WhatsApp. To fix it, you will need to either remove the card or unmount it. Tap on the option or icon that says eject or Unmount. Do note that unmounting the card will not delete your data in the card.
If your Android phone offers a native setting for moving data to an SD card, you should try turning it off for WhatsApp. The steps may differ according to your phone model. This is not an issue but a feature in WhatsApp. The person could have cleared the chat, leaving you unable to download the files.
Request that the sender resend the file. Try clearing the cache for WhatsApp on your Android phone. Doing so will not delete your chats or any associated media. Restart the phone after clearing the cache. If you are using adblocker apps on your phone, try turning them off for a while to see if they are conflicting with WhatsApp media. Restart the phone. If the issue persists, uninstall WhatsApp from your phone and install it again.
However, make sure to back up the data first using the native option. That way you will not lose your chats and files. On Android, apart from uninstalling WhatsApp, you should also try renaming the existing WhatsApp folder. Just restart your phone or tablet. Hopefully, you shall be able to save images from Google after restarting the device. The steps to download images from Google search are quite easy.
However, sometimes people forget them, and they think something is wrong. When you are downloading an image from Google search, make sure you tap the image first to make it bigger. Once that happens, then only touch and hold the image. Select Download image, Add to Photos, or Save to Photos from the menu depending on the browser that you are using.
Similarly, you can download other types of files. Check out other ways to download images from Google on iOS. The browser or the app that you are using to download images from Google search should have the necessary storage permission. Step 2 : Under All apps, go to the app from which you are trying to download the image. Tap on Chrome. Step 4: Tap on Storage or Files and media, depending on the available option.
Choose Allow. Close the browser and try downloading the image. Know more about app permissions on Android. Step 3: Tap on the app used for downloading images from Google. Select Add Photos only. If your iPhone supports 3D Touch , you should try disabling it as it also affects how your phone works.
With 3D Touch, your iPhone screen becomes sensitive to touch as well as pressure. So depending on the pressure applied, you might not see the menu having Download image option when you hold the image from Google. Step 2: Go to Accessibility. Turn off the toggle next to 3D Touch. Since most users will be using a browser to download images from Google, the issue can be with the browser. So the first fix involving browser would be to clear the browser cache and cookies.
We will tell you the steps for Chrome and Safari.
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