Posts Tagged ‘Scroll’

Android lag

December 30, 2011

Recently I’ve been reading a lot of buzz on the web around the Android lag issue: some Google engineer started the controversy with a post on Google+ and then other devs wrote their own opinion on that.

First of all, I believe that if this subject was discussed widely on the web, it probably means that the problem exists! I want to emphasize this because first I was led to believe by some online forums that it was an issue exclusive to the Galaxy S I had. Apparently this might affect the whole platform and, as a consequence, more or less, every single Android device.

Second, the conclusion I get from all the posts I’ve read is that Android, unlike iOS or Windows Phone, does a lot of different stuff all at the same time instead of focusing on the screen response to the user when the screen is touched. It seems pretty obvious to me that the screen responsiveness is a major thing on a touchscreen device user experience. Google apparently doesn’t share entirely this view with their competitors and believe that, at some point in the future, the hardware will be so powerful that this problem will sort itself out.

In the meantime, I felt curious about everything I’ve read and made a short video where I try to see what’s the approach Google and Apple took on this by playing some CSS animation on both OS stock browsers.

By the way, on a side note, after watching this video I noticed something I didn’t before: recording the video at the same time, on the same place, connected to the exact same wireless network, the iPhone 4S shows a much higher level of signal reception compared to a very poor signal showed by the Sony Ericsson Live with Walkman.

Is the iPhone WiFi signal level too optimistic or is the Sony Ericsson antenna really bad?

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Thoughts on Android 2.3.5 for the Galaxy S

November 24, 2011

As I mentioned before, I’ve been using for some time now the Android 2.3.5 update for the Samsung Galaxy S and it deserves some comments.

Good news first:

– The previously reported Android OS battery drain bug is apparently gone! This just means the phone does not drain the battery all by itself in a dozen hours or so, which was a huge problem. The Android OS process is now at a more reasonable 6% share of the overall battery consumption.

– The browser scroll now works properly as in any other smartphone in the market

Unfortunately, there’s a few problems with this firmware:

– As I said in the previous blog post, the TouchWiz launcher crashes randomly.

– The phone process is also crashing a lot, especially soon after the end of a phone call, as you can see in the picture below.

– The browser may now present a correct scroll behavior but the stability is worst than before, which is not good because the browser was never the most stable app in Android.

It wouldn’t be so bad if it did compensate the lack of stability with improved performance, but running the SunSpider javascript benchmark returned a result of 6505.1 ms which is a regression compared against the 6305.4 ms scored by Android 2.3.3.

Apparently stock browser javascript performance optimization is not a priority for Samsung, neither is improving the stability of the official firmwares they release for the Galaxy S.

Android browser kinetic scroll bug

October 31, 2011

One of the reasons why I started using other Android browsers was because of the kinetic scroll bug the Gingerbread update brought to my Vodafone branded Samsung Galaxy S.

As you can see in the video below, since the Android 2.3.3 update, the stock browser has a different kinetic scroll behavior. Instead of slowing down smoothly, the scroll now stops suddenly after a brief moment since the start of the scrolling, which I find annoying as hell…