Feeds

How to hack a Sony Reader

Inside the Linux-based e-book viewer

Choosing a cloud hosting partner with confidence

More tweaks

You’re not limited to simply altering the text that appears on some of the screens - you can actually add additional functions, though this is where things start to become somewhat less straightforward.

For a simple tweak, look at the applicationStart.xml file. You’ll see definitions near the top for the different keys, for example:

<string key="6" do="doDigit" />

for the non-numeric keys, there are entries such as:

<boolean key="0x27" do="doCenter"/>
<boolean key="0x27-hold" do="doCenter"/>

Assigning a global built-in function to one of these keys is achieved by changing the value of the do parameter. A popular tweak uses the long press on the centre of the navigation button to shut the Reader down, though you could equally choose to use it to much the audio. Just change the do= value to doDeviceShutdown or doMute if you prefer.

More complex customisations tend to rely on adding extra code in the main.xml file. Look through, and you’ll see that there’s a group tag for the different screens, as for the About screen that we tinkered with earlier. The <code> tag allows you to define specific functions for that page, each within its own <function> tag.

Look, for example, at the PAGE_GROUP, where you’ll find a function with the id “pageChanged” which updates the bottom of the screen with the current page of the current book. A similar function is found in menus.

And another popular hack adds a clock to the bottom of the screen. A call to this.shd_clock() is added at the bottom of “pageChanged”. Then, a new function shd_clock is defined, using a function tag, which starts like this:

<function id="shd_clock"><![CDATA[
var time = new Date();
var show = "";

It goes on to checks the preferences for clock display, and shows the time in the appropriate format, each time the page is changed. A companion function on the About screen uses the 0 key to toggle the clock display between off, 12 and 24 hour. It begins by using doDigit, then checking if the 0 key was pressed, and setting a preferences option appropriately.

Intelligent flash storage arrays

More from The Register

next story
Chipmaker FTDI bricking counterfeit kit
USB-serial imitators whacked by driver update
Xperia Z3: Crikey, Sony – ANOTHER flagship phondleslab?
The Fourth Amendment... and it IS better
Don't wait for that big iPad, order a NEXUS 9 instead, industry little bird says
Google said to debut next big slab, Android L ahead of Apple event
Microsoft to enter the STRUGGLE of the HUMAN WRIST
It's not just a thumb war, it's total digit war
A drone of one's own: Reg buyers' guide for UAV fanciers
Hardware: Check. Software: Huh? Licence: Licence...?
The Apple launch AS IT HAPPENED: Totally SERIOUS coverage, not for haters
Fandroids, Windows Phone fringe-oids – you wouldn't understand
Apple SILENCES Bose, YANKS headphones from stores
The, er, Beats go on after noise-cancelling spat
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.