It is tempting to keep only a single resolution of an image on a server. When a device accesses the image, the server serves it at that one resolution and leaves downscaling to the device.
This solution is convenient for the developer, but potentially painful for the user, because the solution forces the user to download much more data than they need. You should instead store multiple sizes of images, and serve the size that is most appropriate for a particular use case. For example, for a thumbnail, serving an actual thumbnail image instead of serving and downscaling a full-size version consumes much less network bandwidth. This approach is good for download speed, and is less costly for users who may be using limited or metered data plans.
Proceeding like this also results in the image's taking less space on the device and in main memory. In the case of large images, such as 4K ones, this approach also saves the device from having to resize images before loading them. Implementing this approach requires that you have a backend image service to provide images at various resolutions with proper caching. There are existing services that can provide help with this task.
For example, App Engine comes with image resizing functionality already installed. Content and code samples on this page are subject to the licenses described in the Content License. App Basics. Build your first app. App resources. Resource types. App manifest file. Device compatibility.
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Play Feature Delivery. In-app reviews. In-app updates. Google Play Instant. Get started with instant apps. Get started with instant games. Download Article Explore this Article methods. Tips and Warnings. Related Articles. Article Summary. Method 1. Open Google Chrome or Microsoft Edge. If you have Google Chrome or Edge installed on your computer, you have a variety of options for downloading all images from websites.
We'll focus on one popular option called Imageye Image Downloader, as it's available on both browsers and has a lot of great reviews. Go to the Imageye Image Downloader extension page. Whether you're using Chrome or Edge, this Chrome web store link will allow you to install the Image Downloader extension—the two browsers have very similar back-ends.
Click the blue Add to Chrome button. It's at the top-right corner of the page. Click Add extension when prompted. This installs Image Downloader and adds its icon to the upper-right corner of your browser the downward-pointing arrow. Go to a page with images that you want to download. Type a website address or search term into the URL bar at the top of the Chrome window, then press Enter.
Click the Image Downloader icon. It's a white arrow on a blue background. You'll find it in the top-right side of the Chrome window.
This displays all downloadable images in a pop-up window. It's at the top of the window. This selects all images on the website. If you want to filter the images by size, you can click the funnel icon at the top and choose which size images to display first.
It's the dark blue button at the top of the window. A confirmation message will appear. This confirmation message will also warn you that if you've set your browser to ask where to save files before downloading them, you'll be prompted to save each file separately.
Before agreeing, double-check your settings: Chrome: Click the three-dot menu at the top-right corner, select Settings , click Advanced in the left column, and then click Downloads. Toggle off "Ask where to save each file before downloading" to avoid having to approve each download separately.
Edge: Click the three-dot menu at the top-right corner, select Settings , and then click Downloads in the left panel. If "ask me what to do with each download" is on, click the switch to turn it off. The images will now download to your default download location usually the Downloads folder.
Method 2. Open Firefox. Start by opening Firefox, which you'll find in your Windows Start menu or your Mac's Applications folder. Go to the DownThemAll! This will open the DownThemAll!
DownloadThemAll is listed as one of Firefox's "Recommended" add-ons. Click the blue Add to Firefox button. It's in the upper-right area of the page. Click Add on the confirmation message. This installs the add-on. Once installed, DownloadThemAll's arrow icon will appear in the upper-right corner of Firefox. Click OK when prompted. After the add-on is installed, you'll see a pop-up at the top-right corner of the page. If you want the browser extension to run in Private Windows as well as regular browsing windows, check the box next to "Allow this extension to run in Private Windows.
Type a website address or search term into the URL bar at the top of the Firefox window, then press Enter or Return to bring it up. Click the DownloadThemAll icon. It's the down-arrow at the upper-right corner of Firefox. Click DownloadThemAll on the menu. This opens a smaller window with some preferences. Click the Media tab. You'll see this at the top of the window. Select the type of images you want to download. If you don't want to download some of the images, you can uncheck the ones you don't want.
Click the Download button. This downloads all of the images to your default download folder usually the one called Downloads. Method 3. Go to the website containing the photos you want to download. You can simply open the website in Safari, Chrome, or your preferred browser and wait for it to load.
Tap ImageDrain on the sharing menu. It'll be in the list of actions below the icons, so you'll need to swipe up on the sharing menu possibly twice to find it. A list of images will appear. This may not work on all websites—if you don't see a list of images that can be downloaded, you won't be able to download images from that site.
Tap the checkmark on each image you want to download. Each image you can download has a checkmark in a circle at its top-right corner. Tapping the checkmark turns it blue, which means you've marked it for download. The number of selected images appears over the checkmark at the top of the screen. To select all images at once, just tap that checkmark with the number of selected images.
Method 4. Open Gallerify after downloading it. It's the new orange camera icon in your app list. Enter the URL of the website with photos you want to download. This goes into the field at the top of Gallerify. Tap the Enter or send button to load the site in Gallerify. Once the site loads, all downloadable images will appear as thumbnails smaller images.
It's the three vertical dots at the top-right corner of Gallerify. Tap Save all images on the menu. This displays the location where your saved images will be stored upon download.
Tap OK to start the download. This saves the images to your Android.
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