Monday, November 23, 2015

Open sourced my very first Android App: GSC Picture Puzzle ^_^

Feel free to grab the code, contribute to it, and use it on your own app :)

a few of the implementations used:
-TableLayout and TabLayout
-Splash Screen
-Getting image from device to be used in puzzle
-Making images randomly selected for puzzle
-Game timer
-Saving screen of puzzle for game saving

-Adding border to puzzle image
Monday, January 12, 2015

My Ultimate Guide to Android Activities

Starting off in my leveling up of my Android development skills is to "master" the Activity in Android implementation and all its quirkiness and idiosyncrasies.

So far these are the things I would like to cover (I will add others when I discover them):

  • Lifecycle
  • gotchas
  • Passing objects and values between Activities
  • Saved instances
    • How to test
  • Configuration changes
  • Starting an activity from a different app
  • Intents and its filters
  • Tasks and Back Stack

I will not do a tutorial here and put into my own words existing references about Android Activities. Instead I'll just put links here for my future reference. But it is a must that what I have put in here are already read (and digested).

Some tidbits that I know now that I missed before:
  • the EditText widget saves any text entered by the user and the CheckBox widget saves whether it's checked or not. The only work required by you is to provide a unique ID (with the android:id attribute) for each widget you want to save its state. If a widget does not have an ID, then the system cannot save its state.
  • The system will not call onPause() and onStop() if finish() is called within the Activity's onCreate() method. In this case, onDestroy() is called right away.
  • I should declare Intent's Extra constant strings with the full package name of my app

My Ultimate Journey to Android

I've been programming for eight years now. I started as a Java Applications Developer usually doing Enterprise Level Web Apps in different industries like healthcare, sales management, human resources management. Being involved with frameworks like Spring, Struts, EJB, plain Servlets & JSPs. I did this for about 5 years until I fully shifted to Mobile development (for Android & iOS). At first I just self studied Android while doing Java Enterprise Development for HP at Mckinley Hills. My first Android app was a picture puzzle

Then I got a part time freelance work and the rest as they say, is history.

Now, I'm doing Android development and also iOS development and I noticed (and realized) that my Android development skills are not that good. At least not as good as I want it to be. I still have a hard time sometimes on implementing a bit complex situations on Activities, and Fragments. Especially Fragments. And I still haven't really used Content Provider for my app. At least not in a simple situation. I don't have the design skills yet to pull off a really rocking Android UI.

Other Android topics I am keen to master:

So my resolve for this year of 2015 is to Level Up my Android development skills. May the geek goddesses help me with this endeavor.

Monday, February 13, 2012

Downloaded Aptana (for my PHP Dev't)

Downloaded Aptana Studio 3.0 for PHP dev't here for mac OSX

Wednesday, February 1, 2012

KeePass Password Safe (journey into)

Searching on how to implement plug-ins for Safari, Chrome & Firefox (for mobile) for the Digital Wallet app for iOS (for a project here at current full time work at iDigital) I stumbled into KeePass. The plug-ins should provide auto fill functionality for websites in Chrome, Firefox and Safari (this is based from the 1Password app)

The great thing about KeePass is it's open source and it has available extension for Auto Form Fill for Chrome and Firefox. and the firefox extension is also open sourced.

The KeePass plugins available:

The source for the auto fill extension in firefox:

For the Chrome extension:

The download for KeePass (it has ports for Linux and OSX):
- I have to install MonoFramework in OSX
- then install KeePass after

For the KeePass source:

For the Keepass Android version source:

Other open source password managers:
Tuesday, January 31, 2012

Macintosh Finder: Reasons for Slow Operation

I experienced very slow finder once in a while in the Mac Air 11" with OSX 10.7. After searching I tried this one. It seems to work things out:

TOPIC ----------------------------------------------

What could make the Finder run slowly?

DISCUSSION -----------------------------------------

A slow Finder is not caused by the size of the disk, but by the size of the
Desktop file. The size of the Desktop file is not directly related to the
number of files it contains, but to the number of icons and file comments.

The number of icons is related to the number of applications. Slow
operation becomes a problem for hard disks with more than 50 applications.
The number of comments is a problem only for those who add a comment to
every file and folder. This is typical with public domain software. To
remove all comments, you can rebuild the Desktop file in one of two ways.

- You can delete the Desktop file in ResEdit.

- You can hold down the Command and Option (aka Alt) keys while you start up your

These operations remove the comments and speed things up appreciably.

Taken from:
Monday, October 17, 2011


I have recently experienced

Installation error: INSTALL_FAILED_INSUFFICIENT_STORAGE in my Android application when I am trying to Run and install my app on the emulator.

What I did was: add -partition-size 1024 when launching the emulator.