miércoles, 28 de octubre de 2015

Learning Android Application Programming

Table of Contents

http://www.androiddevbook.com/book.html

1. An Introduction to Android Development


  • Understanding the Android Difference
  • Building Native Applications
  • Understanding the History of Android
  • Using the Android User Interface
  • Understanding Android Applications
  • Introducing Google Play

2. Kicking the Tires: Setting Up Your Development Environment


  • Installing the Java JDK and JRE on Windows Understanding Java Versions Installing the Eclipse IDE on Windows Installing Eclipse Configuring the Java JRE in Eclipse Getting Familiar with Eclipse Installing the Android SDK on Windows Installing the Android Developer Tools Plug-in on Windows Installing and Using Java on a Mac Downloading and Installing the JDK on a Mac Downloading and Installing the Eclipse IDE on a Mac Downloading and Installing the Android SDK on a Mac Installing the Android Developer Tools Plug-in on a Mac

3. Putting On the Training Wheels: Creating Your First Android Application


  • Creating an Android Application Running Your Android Project Creating an Android Virtual Device Running an Application on the AVD Best Practices for Using an Android Virtual Device Installing an Android Application on an Actual Device Working with Lint in an Android Project Understanding the Android Project Files Understanding the Layout XML Files Understanding the Resource XML File Using IDs in XML Files and Their Effect on Generated Files Understanding the Activity File Understanding the Activity Lifecycle Getting Access to the TextView Within the Activity Using Logging in Your Application Understanding the Android Manifest File

4. Going for Your First Ride: Creating an Android User Interface


  • Refactoring Your Code Implementing Strict Mode Creating a Simple User Interface Using Linear Layouts Creating Button Event Handlers Updating the Timer Display Displaying a Running Timer Understanding the Activity Lifecycle Exploring the Android Activity Lifecycle Fixing Activity Lifecycle Issues Making an Android Device Vibrate Saving User Preferences
  • Creating a New Activity Showing a New Activity Saving an Application’s State Using Shared Preferences

5. Customizing Your Bike: Improving Android Application Usability


  • Refactoring Your Code Improving the Setting Activity Showing Toast Pop-Ups Returning from the Settings Activity with a Back Button Action Bars and Menus Creating a Menu Creating an Action Bar Going Home Using Notifications Creating a Notification Showing or Replacing a New Notification Showing Notifications at Regular Intervals Creating a Database
  • Creating a Data Model Creating a Database and Its Tables Checking Table Creation Creating Relationships Between Tables
  • Creating a Routes ListView

6. Pimping Your Bike: Styling an Android Application


  • Refactoring Your Application Understanding Screen Differences Understanding Screen Sizes and Densities Knowing the Devices Out There Making Your Application Resolution Independent Using Configuration Qualifiers Creating Launcher Icons Creating Notification Icons Making Apps Look Good on Different Screen Sizes Using Resource Dimensions Changing Text Size in Java Changing the Layout for Landscape Mode Changing the Layout for Tablets Creating a Side-by-Side View Using Styles and Themes Enabling Night Mode Changing Themes Detecting Light Levels Dealing with Erratic Sensor Values

7. Are We There Yet? Making Your Application Location Aware


  • Refactoring Your Code Finding the Device’s Location Testing GPS in a Virtual Device How Accurate Is the GPS Location? Improving the User Experience When Using GPS Location Displaying Google Maps Dealing with Inaccurate Location Data Storing GPS Data Inserting, Updating, and Deleting Data Updating the Model Using the Database in Your Application Displaying GPS Data Working with List Activities Displaying GPS Data in Google Maps

8. Inviting Friends for a Ride: Social Network Integration


  • Refactoring Your Code Integrating Photos into an Android Application Taking a Photograph Checking Whether You Can Take a Photograph Displaying a Photograph in Your Application Getting Results from Activities
  • Sharing Content with Friends
  • Displaying a Chooser Sharing Text and Photos

9. Tuning Your Bike: Optimizing Performance, Memory, and Power


  • Refactoring Your Code Running Your Application as a Service Handling Orientation Changes Creating a Service Improving Battery Life Determining Power Usage Reacting to Power Levels Checking the Battery Regularly Speeding Up Databases Speeding Up Databases with Indexes Speeding Up Databases with Asynchronous Tasks

10. Taking Off the Training Wheels: Testing Your Application


  • Testing with JUnit Creating a New Test Application Increasing Test Coverage Speeding Up Your Tests Making Testing Easier by Refactoring Testing with Android JUnit Extensions Testing Android Activities Creating a Mock Application Testing an Activity Lifecycle Testing an Activity Further Testing by Interacting with the UI Testing Services Using Monkey Testing Running Tests Automatically Running Tests from the Command Line Installing Jenkins Using Version Control with Git Overview of Git Bash Commands Using Jenkins Testing on a Wide Range of Devices

11. Touring France: Optimizing for Various Devices and Countries


  • Refactoring Your Code Going International Supporting Various Languages Starting with a Rough Machine Translation Improving the Translation with Help from Users Adding More Languages Accommodating Various Dialects Adding Language Region Codes Dealing with Word Variations: Route, Path, Trail, and Track Handling Various Language Formats Supporting Right-to-Left layouts Dealing with Variations in Dates, Numbers, and Currencies Enabling Backward Compatibility Using the Android Support Library Android Version Checking Building for Various Screen Sizes Using Fragments

12. Selling Your Bike: Using Google Play and the Amazon Appstore


  • Building Your Media Strategy Using Google Play Implementing Google Licensing Employing Advertising in Your Application Using the Amazon Appstore

miércoles, 21 de octubre de 2015

NO EXCUSES

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Speed-Reading Techniques


Speed-Reading Techniques 






Speed-Reading Techniques
I was a Bible college student when one of our chapels featured a
guest speaker who taught us how to speed-read. At the time I didn’t
need the skill since most collateral reading assignments in my courses
were under 500 pages, but I started practicing just for the fun of it
— sort of like a private parlor game. However all that changed when I
wound up in graduate school at Princeton Seminary and several Profs.
expected me to read several thousand pages of collateral along
with the five or six textbooks. That’s when I got serious about speed
reading. Here is the collection of what I practiced then, and picked up
since. The first thing I had to do was toss away the reading myths I
had held so long.
Reading Myths
1. Reading is linear. I had always figured reading was
a linear process; you know, start up front and grind through to the
very end in the exact order it was printed in. Reading is no more
linear than thinking is, (or I eventually discovered, than writing; few
writers start at the beginning — indeed, they usually “write the first
part last.”
2. True reading is word-for-word. I started as a kid
looking at individual letters. They didn’t help much. Next I started
sounding out syllables. Finally, I could read whole words. Why stop
with words? Well, I know one reason… I had a college professor who made
us swear we had “Read every single word” of our collateral reading.
Why? He didn’t make us swear we’d “read every single letter.” The
answer is simple: that professor (like me) had never moved from
letters, syllables, and words, to reading phrases, sentences and
paragraphs. He assumed the only way to read thoroughly was by the
laborious method of reading one word at a time.
3. Reading is a laborious task which takes a long time. Not at all! Reading can be both fun and fast. Indeed, speed reading is like auto racing — it is far more exciting.
4. All parts of a book are of equal value. This myth
persists until you actually write your own book. Then, all at once you
realize there is “filler” material , illustrations, and even sometimes
whole chapters jammed into a book just because the publisher insisted.
Take messages for instance. Ever hear a message and wish you could put
it on fast forward over that long story illustrating a point you
already understand? Well, in reading you can fast forward.
5. Reading faster will reduce retention. Sorry. It
should be that way, shouldn’t it? Those who groan slowly through a book
painstakingly sounding out every single word, maybe even moving their
lips, should get a greater reward shouldn’t they? Sorry. In fact, speed
reading techniques will increase one’s comprehension and retention.
Getting Ready to Read
So, we’re ready to read. But don’t read the book yet. There are a few steps to take first.
FIRST: ELIMINATE ALL DISTRACTIONS: Get rid of ANYthing
your mind could think about besides the reading material. Is there
conversation? Activity? TV? An uncomfortable seat? Music in the
background? (OK OK, I know many of my readers are college students who
claim they “study better” with music in the background. Go ahead and
claim it — but you are wrong. You might “like it” better, but you do
not study better. ANYthing which might occupy your mind waters down
your concentration — even occupying your “mind-in-background.” Fool
yourself if you wish — but if you really are serious about reading
faster, eliminate distractions.
SECOND: Ask: What is my purpose? Why are you reading
this? And what kind of literature is it? Is it a classic or fiction
work you are reading for fun? Then, why hurry through it at all? Like a
leisurely meal, sit back and taste each bite — turn over the delicious
phrases in your mind. Or is collateral reading for a course where you
are must be familiar with the central notions? Then finding the notions
is why you are reading, right? Or maybe you are reading collateral
where you will be tested on the content? Or maybe collateral reading
where you will be required to say, “I read every single word?” Or is
this a book where you will be tested on the terms and dates therein?
Or, maybe you are just reading the book searching for some new ideas
for your own situation. Or you have to write a review. Or maybe you
plan to teach it to others. See how different your purpose might be for
each? Before you open the book, take a minute to state your purpose to
yourself. It will largely determine how you read the book from then on.
THIRD: Do a 10 minute PRE-READ. Take ten minutes or
less and pre-read the entire book. Go ahead and try this if you’ve
never done it before. Treat a book like a jigsaw puzzle. Dump it out,
then organize all the pieces first before putting it together. Read the
dust cover and any cover reviews. Then look through the author blurb.
Move to the Table of Contents and see if you can figure out the whole
book from this page. Page through the entire book, page by page and
glance through all summaries, tables, pull-out quotes,
diagrams(especially), and scan through all the section titles and you
go.
Chances are you’ll find the KEY CHAPTER while you are doing this. Some publishers say (off the record, of course) “A book is simply one great chapter with a dozen other filler chapters.” If this is so, find that chapter.
FOURTH: Read the KEY CHAPTER. Start using the rapid
reading techniques mentioned later to read this KEY CHAPTER through.
You are not obligated to wait until you have read all the chapters
before this one, as if you must eat your green beans before the ice
cream. The book is yours — go ahead and get the central idea before
you start!
Once you’ve read the key chapter you are ready to read the rest. In
order from the front to the back, or in some other order which better
suits your purpose. Now for some actual reading tips tips.
III. Rapid Reading Techniques
1. Raise your speed- comfort level. How comfortable
are you speeding in a car? How fast do you have to go before you feel
you are “on the edge?” 70 MPH? 90? 120? How about 210 MPH, the speed
the Indy car drivers can average? Get the point? Some people have
learned to drive faster; their comfort level has been raised. You can
do the same thing for reading. Face it, speed-reading isn’t mostly
about technique; it is about mind set. Indeed this may be the reason
you can play a CD while reading — you are merely driving along at
25MPH. Can you imagine an Indy car driver playing music in the
background? No. The driver focuses all his or her skills on the track.
If you are out for a Sunday afternoon stroll in your book, then ignore
this. But if you are serious about becoming a speed-reader, then start
expecting more of yourself.
2. See the book as a mine full of ORE not GOLD. Books
offer wonderful gold to the prospector. But the reader must sort
through tons of ore to find and refine the gold. The speed reader
changes mindsets: quits fooling around with the ore and searches for
the gold. What is a book anyway? What are words? They are “carriers” of
truth, thoughts, ideas, a thesis, information, terms, concepts,
notions. One reads a book to get the message, not to obsess on the
words. (I’m tempted here to talk about Bible study, but we shall let it
pass this time.) Switch your mindset to looking for the gold.
3. Quit Subvocalizing. Most of us learned to read by
sounding out the words. The trouble is, most of us never stopped. Sure,
maybe we no longer audibly sound them out, or even move our lips, but
in our heads we are “reading to ourselves.” We have learned to read by
Mouth-and-Ear. To become a speed reader one must discard this habit (or
at least reduce it) and adopt the eye-and-mind method. It is mostly a
matter of mind set. Instead of acting like the ear (even in one inside
your head) is the route to the mind, begin believing that the eye is
the gate to the mind. Start drinking in books through your eyes. Let
the books pass into the mind directly from the eye, skipping the mouth
and ears. Go ahead and start trying it.
4. Use your finger. For most beginning speed-readers
this is a shock. They remember reading in grade school with their
finger and assume it slows one down. Actually the finger is your pace
car. It leads you forward at a speedy pace, and keeps you on focus and
avoiding back-skipping. There are several ways to use your finger (or
hand) but just try it out for starters. As you improve, buy one of the
books on speed-reading and settle on the pattern which works best for
you.
5. Break the Back-skip habit. Most of us read along a
line of type like this one to get the interpretation of the meaning,
but as we read our eyes jump back to dwell on a word we just passed. We
do this without knowing it. In fact, probably the only way to discover
how many times you back skip is to have someone watch you read and
count the eye-darts back. But, unless you have someone you feel pretty
comfortable staring you in the face while you read, just trust me —
you probably back-skip. How to stop? First confess you do it. Then
start recognizing when you do it. Finally when tempted to back-skip,
treat the book like a movie — that is, even if you miss something in a
movie, you don’t stop the video and replay it. You just let it flow on
through, hoping you’ll make it up later.
6. Use your peripheral vision. Just like you must develop a
muscle in the gym, so your mind can be trained to use the eye-gate to
take in a broader amount of data. For instance, instead of reading left
to right across the lines, pretend there is a line right down the
middle of this page and you are following the line. Let your eye take
in through peripheral vision the phrases to the right or left. Can you
do it? With practice you can train your mind to read on “both sides of
the road” even though your eyes are on the center line. To practice
this skill most speed readers actually draw lines down pages of a book
until they have mastered the skill with an invisible line. Let your
mind drink in the information on the page without looking directly at
it — just like you “see” the sides of the road when driving an
automobile.
7. Learn to read KEY WORDS. 40-60% of the words on a
page are neither critical nor important. Indeed, if someone took
white-out and hid them from your sight, you could still figure out what
the paragraph was communicating. So, it stands to reason that if you
could figure out which are these KEY WORDS you could scan past the
other words and let your mind fill in the blank. Train your mind to
find these key words and you’ll add even more speed to your reading.
8. Eliminate “Bus Stops” (Eye rests). As your eyes
read down this line they stop periodically and “rest” on a word.
Children’s eyes often rest on every single word as they learn to read.
Then as you grow your eyes move smoothly down the line like a lawn
mower, then you stop a split second on a word, then start back up
again. Most reader never get over this habit, but like a bus stopping
at every corner, it slows down your progress. Try to reduce your eye
rests to 3-4 per line, maybe even less as you get better… keep the eye
moving smoothly line after line, letting your mind drink in the
knowledge on the line.
9. Take breaks. The research is clear. Steady reading
hour after hour is less efficient than taking a five minute break every
hour or less. Sit down to read 100 pages in the next hour. Set an alarm
even. Then reward yourself with a cookie or sandwich when you’ve
reached your goal in 60 minutes.
10. Set a time goal. Have a 300 page book to read?
Decide how fast you’ll read it. If you are not a speedy reader, maybe
you’ll only set the US average reading speed as your goal: one page a
minute (250 words/min.). Or if you are already an above average reader,
set 100 pages an hour and plunge in. If you picked 100 pages an hour,
that’s 50 in a half hour, 17 per 10 minutes or 1.7 pages per minute.
Keep on track… pretend like you are in an auto race… push yourself,
concentrate, get yourself out there on the “racer’s edge” — the line
just short of out-of-control, yet still in command. Do it; it will be
exciting!
IV Retention Techniques
1. Underline, circle, make margin notes. Not
highlighting the whole page like some students do! Usually you will not
mark more than two or three items per page, and many pages will have no
markings. Marking pages increases recall — do you have a marked-up
Bible? If you do, you can almost “see” the page in your head when
recalling it. Marking helps. (Highlighting may help — your own
markings, however, are probably superior).
2. Dog-ear important pages. In a 250 page book there
will probably be 25 pages worth dog-earing. Turn down the page to
return later. The bigger the dog-ear the more important the page. Most
books have only four or five half-page-dog ears.
3. Transfer key notes to front of book. Got a great
point here? The central message? The quote which essentially represents
the whole book? Write it down in the front of the book. Why? Generally
speaking when it comes to new information you either “Use it or lose it
in 20 minutes.” When you discover it, flip the book open to the front
and scribble it down; it will cement the notion into your mind. Better
yet, link it to something you already know and write that down too.
Linked information can be recalled far better than isolated information.
4. When finished, re-read dog-eared pages. Just run back through and re-read the gold. Here is the essence of the book (if you made judgements right going through).
5. Now write an “abstract” in the back or front. You are
finished! Go for a pizza… but not just yet. Take a few more minutes and
write an “abstract” up front in your own words. When the writer
submitted the proposal for this book, he or she probably actually had a
single paragraph or page, outlining what this book was all about. To
summarize the book, simply “reverse engineer” the book back to the
author’s abstract or thesis.
6. Consider drawing a “MindMap” of the contents. If
you are going to be tested on this book, get someone to teach you how
to use Tony Buzan’s “Mind Map” to remember the entire book on a single
page. Remember, the mind mostly recalls ideas and pictures, not words.
A Mind Map will enable you to “picture” the whole book and you’ll look
like you posses a “photographic” (which you really don’t need, if you
simply follow the advice in this article).
7. But if you borrowed the book, and can’t mark it,
dog-ear it, or otherwise “use” this took — then use 3M stickers
instead of dog-ears, and write your comments on half-sheets of paper as
you go.
Finally,
remember this: speed-reading is not some magical secret you can pick up
in ten minutes and Presto! You now can read 1000 words per minute.
True, you can learn to read faster; perhaps double your present
speed in two weeks. But to become a life-long rapid reader (like
becoming a proficient race car driver) takes time, concentration and
practice. This short article can get you started, but to really become
expert you’ll need to practice plenty.
To help you develop this skill further try one of the many books on rapid reading. (You only need one to start with, most all articles (like this one) books and courses basically cover similar techniques.)
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