Showing posts from May, 2013

Open downloaded files directly in Firefox on Mac


It's annoying that I have to click on torrent files every time I download them in firefox. Although I tried to check the option to open always with a certain application in SaveFile dialog, it never worked.
 However, the solution seems so simple that I should have searched the internet earlier to make my life easier. In firefox official support website, it mentioned that this is configurable in Peferences:
On the menu bar, click on the Firefox menu and select Preferences... Select the Applications panel. The Applications panel will display. Select the type of file for which you want to change the default action.  Voila. Let's keep surfing the internet!


OrientationEventListener on Android to get current rotation degree

(Central Park.New York)

Strangely, it's not possible to get current rotation angle in android directly, except for getting the fixed 4 rotation modes: 0, 90, 180, 270. In order to get precise rotation degrees instead of rotation modes, OrientationEventListener can be used. Once it's implemented, you can get the rotation degree in onOrientationChanged(). It's a lot easier than manipulating values from all the sensors like gyroscope, accelerator, etc.

Tips for using AdMod module in Android Studio

It's pain in the ass to use Android Studio now, since it's just published, which implies bugs appear every now and then, and you're not sure it's due to your misunderstanding of this IDE, or it's really an issue. In addition, it's  relatively hard to find How-to answers comparing to ADT plugin with Eclipse.
While trying to set up AdMob module in my project on Android Studio, it took me some time to fix some external library import errors that should be clearly mentioned in online AdMob doc, or even better, just integrate it into "Android Studio".  Isn't Android Studio meant to make Android developers' life easier?
Problem 1: element  in my layout xml as doc says, but it generates compilation error. <?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android=""xmlns:ads="…

Enhance Reading Experience for Android Dev website

Recently I spend most of my time reviewing documents on google's android official site. It annoys me that the left side of the screen is always occupied by the content index; however, I just need to change articles once in a while by using it. It makes me feel bad that one third of the screen is wasted. In addition, it also distracts me while I was reading.
As a consequence, I searched internet to see if there's any extension, plugin, or script to help me hide the navigation panel when I want to do so. Out of luck, no. Maybe it's too tiny to have someone work on it.
Therefore, I decided to write one by myself, after reading a book about jQuery. My choice is to write a userscript for greasemonkey, which is supported on Chrome now as well. The logic is very simple and the lines of codes are few, although it still took me sometime to find right APIs to implement this feature.
Here's the screenshots:
The userscript is uploaded to following site:…

JavaScript & jQuery: The Missing Manual


Amazon link

Eclipse/Java code completion not working with Android development


While watching some video tutorials about android development, I found that the lecturer can call out the class completion helper dialog during typing class names. However, I only have the function/variable autocompletion feature after typing a . after a class name in my eclipse. Without entering the class name correctly, I can not get any help from eclipse, which is quite strange comparing to what I've seen for others.
Well, it seems that many people encountered the same problem as I did. This is being discussed on various posts. One way to make it work is to check the "Java Proposal" in Eclipse's Preferences > Java > Editor > Content Assist > Advanced'.
But for me, it seems that something's wrong with my workspace configurations too. The answer from hoipolloi in following reference post helped me to fix this issue. Here's his suggestion: Quit EclipseGo to workspace/.metadata/.plugins/org.eclipse.jdt.coreRemove *.inde…