How to download images from gallery android

You can also register a BroadcastReceiver to get notified after you download is complete. The setup is pretty much straightforward, refer to the linked project for sample code. Using the DownloadManager is generally not a good idea if you also want to display the image, since you'd need to read and decode the saved file instead of just setting the downloaded Bitmap into an ImageView.

Now the introduction of the great stuff - the libraries. I will start with Volley , a powerful library created by Google and covered by the official documentation. While being a general-purpose networking library not specializing on images, Volley features quite a powerful API for managing images. You will need to implement a Singleton class for managing Volley requests and you are good to go. You might want to replace your ImageView with Volley's NetworkImageView , so the download basically becomes a one-liner:.

If you need more control, this is what it looks like to create an ImageRequest with Volley:. It is worth mentioning that Volley features an excellent error handling mechanism by providing the VolleyError class that helps you to determine the exact cause of an error. If your app does a lot of networking and managing images isn't its main purpose, then Volley it a perfect fit for you. Square's Picasso is a well-known library which will do all of the image loading stuff for you. Just displaying an image using Picasso is as simple as:.

For more control you can implement the Target interface and use it to load your image into - this will provide callbacks similar to the Volley example. Check the demo project for examples. Picasso also lets you apply transformations to the downloaded image and there are even other libraries around that extend those API. Universal Image Loader is an another very popular library serving the purpose of image management. 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:.

The opts argument in this example is a DisplayImageOptions object. Refer to the demo project to learn more. Note : the author has mentioned that he is no longer maintaining the project as of Nov 27th, But since there are many contributors, we can hope that the Universal Image Loader will live on.

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. Please purchase a suitable connector according to your Android phone.

By the way, you can buy the adaptor on Amazon. Unlock your phone and connect the flash drive to it with an OTG cable adaptor. Then there is a prompt on your Android phone. Next, to select and copy the Android photos, please go to the file manager on your Android phone and navigate to the folder of photos. Then long press a photo to select what you want, and tap the " Copy " icon. Now, enter your flash drive on the phone and make a new folder on it to paste the pictures. When the transferring process is done, please safely remove your flash drive.

Read also: Accidentally deleted your camera photos from Android? Take it easy. Here are 7 proven ways that will recover the camera photos from the Android phone without trouble. The last way is slower than the first two, but it can achieve picture migration with the aid of a USB cable and a computer.

Step 2: Tap on an image of interest and press the star icon to the bottom right of the image. You can tap this, or head to www. Right now this URL only works from your mobile device. Save the screenshot as an image and then attach it in an email to tech support. Press and hold down the power button and the volume down button together. Copy and Paste without needing to use the Mouse. In previous versions of windows when your were Copying Files Ctrl-C then alt-Tab to the appropriate window and Pasting Ctrl-V using the Keyboard everything could be driven by the keyboard.

There is no way to view clipboard history by means of Windows OS. You can see only the last copied item. To view the complete windows clipboard history you need to use third-party applications. Clipdiary clipboard manager records everything that you are copying to the clipboard. Step 1. Make sure that your phone is unlocked so that the PC can find the device. Step 3. Now, select the option to Transferring images.

Further, choose what kind of images you wish to transfer. Step 4. Step 5. Click on your device to open it and view files if the images are on SD card, double click on phone. Step 7. From here, select and copy the images that you want to transfer to your PC. After this, paste them into a folder on your computer.

So you don't like cables. Do not worry, read on to know how to move pictures from Samsung to computer with the help of Samsung cloud. If you have recently bought your new Samsung device, there is a huge chance that your device already has a basic Samsung Cloud Drive subscription. The below steps will help you understand how to move pictures from Samsung to computer with Samsung cloud.

Now, open your PC and sign in to Samsung Cloud drive. After this, you can manually download images to your PC. Select the images that you want to transfer and select the Download option.