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Android is a huge ecosystem, with more than 1 billion active users spanning thousands of different device models. People who use Android have an incredible amount of choice, with significant variations in speed, feature set, and cost. Screen size is the most obvious variable — popular Android devices span from 240 x 320 to 1080 […]
There are two ways of “linkifying” URLs in a TextView. First, as an XML attribute: <TextView … android:autoLink=”phone|web” /> and second, programmatically: TextView textView = (TextView) findViewById(R.id.text1); Linkify.addLinks(textView, Linkify.PHONE_NUMBERS | LINKIFY.WEB_URLS); In both the cases, the framework internally registers a LinkMovementMethod on the TextView that handles dispatching a ACTION_VIEW Intent when any link is clicked. This is why phone-numbers open in a dialer when clicked, […]
Android developers spend a lot of time writing XML layouts every day. This talk will explain how Android’s LayoutInflater works. By the end of this talk, you will have an understanding of how XML gibberish gets converted to Views in Java, how AppCompat is able to back-port Material Design for pre-Lollipop devices auto-magically and how […]
Caching various files on disk has always been an integral part of many mobile apps. At Instagram, we use caching to store and recover images, videos, and text files. As a media-heavy application, the Instagram Android app requires a lightweight but stable disk cache system. When we first built the app, we started with the […]
At Instagram, our mission is to help people capture and share the world’s moments. We care deeply about the moments that people share on our platform, so enhancing how people view these moments is really important. Instagram recently launched a new design for Explore that includes “video channels”, which play in a new, full-screen, immersive […]
10 min read · Jun 21, 2016 The first version of Instagram for Android was built in four months by a team of two engineers. It’s been four years since that launch, and in that time we’ve added features such as video, direct messaging, photo maps, advertiser support, and new ways to discover and explore […]
Last weekend, thousands of Instagrammers from all over the world got together forWorldwide InstaMeet 11, one of Instagram’s community-organized, real-world meetups.#WWIM11 was our largest and most geographically diverse InstaMeet ever — thousands of Instagrammers from Muscat to Bushwick shared over 100k photos. With over 300 million people around the world using Instagram every month, 65% […]