liwen · Dec 6, 2011 at 06:09 pm

Former Google Engineer Explains Why Android’s UI is Laggy

You may have read our recent article about a post written by Dianne Hackborn, a Google engineer, in which she clarifies some issues concerning hardware acceleration in Android. In short, even though Android has had “full” hardware acceleration for its UI since Honeycomb, there are still lots of other issues that prevent it from being as smooth as Windows Phone or iOS. Now, Andrew Munn, a former intern at the Android team, has written another post in which he identifies the root cause for this:

It’s because on iOS all UI rendering occurs in a dedicated UI thread with real-time priority. On the other hand, Android follows the traditional PC model of rendering occurring on the main thread with normal priority.

He illustrates this point with the following example:

Grab your closest iPad or iPhone and open Safari. Start loading a complex web page like Facebook. Half way through loading, put your finger on the screen and move it around. All rendering instantly stops. The website will literally never load until you remove your finger. This is because the UI thread is intercepting all events and rendering the UI at real-time priority.

If you repeat this exercise on Android, you’ll notice that the browser will attempt to both animate the page and render the HTML, and do an ‘ok’ job at both.

For a full explanation, head over to read his full post on Google+.


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Jimmy McGee · Mar 3, 2015 at 06:00 am · 1 comment

True Silent Mode for Lollipop – XDA Xposed Tuesday

Android 5.0 Lollipop is a great release. It’ has improving usability with material design, given us quick access to our notifications on our home screen, and more. However, there are some very unique idiosyncrasies regarding the notification sounds and silent mode. Basically, it’s not truly silent. In this episode of XDA Xposed Tuesday, XDA TV Producer TK reviews an Xposed Module that helps you truly silence your Lollipop device. XDA Recognized Developer tonyp created the True Silent Mode module. TK shows off...

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Emil Kako · Mar 2, 2015 at 01:03 pm · 1 comment

How Do You Usually Access the XDA Forums?

There are a number of different apps on the Play Store that make browsing the XDA portal and forums a fun experience on mobile, but we want to know: What's your favorite way to access the XDA forums? Do you prefer browsing on the desktop, mobile app, or mobile browser? If you use a mobile app, which one? Let us know how you connect with our community in the comment section below.

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Faiz Malkani · Mar 2, 2015 at 12:39 pm · 2 comments

Google Announces Plans for Projects Titan, Loon and Link

Once a year, top players in the mobile sphere gather for MWC, to show off what they've been working on and collectively set the standard for the year to come. Yesterday was a big day with the launch of HTC and Samsung's flagships, alongside numerous other announcements, and today it was Google's turn to take the stage. SVP Sundar Pichai took the stage in Barcelona to speak about Google's network initiatives, Project Link and Project Loon, as well as to...

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