For Dummies Android Application Development 978-0-470-77018-4 사용자 설명서

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Part I: The Nuts and Bolts of Android 
Market share
As a developer, you have an opportunity to develop apps for a fairly new 
market that is booming on a daily basis. Android is currently set to outpace 
many other carriers in market share in the industry in coming months. With 
so many users, it’s never been easier to write an application that can be 
downloaded and used by real people! The Android Market puts your app 
right into your users’ hands easily! Users don’t have to go searching the 
Internet to find an app to install. They just simply go to the Android Market 
that is preinstalled on their device, and they have access to all your apps. 
Because the Android Market comes preinstalled on most Android devices (I 
discuss a few exceptions later), users typically search the Android Market for 
all of their app needs. It’s not hard to see an app’s number of downloads soar 
in just a few days.
Time to market
With all the application programming interfaces (APIs) that Android comes 
packed with, it’s easy to develop full-featured applications in a relatively 
short time frame. After you’ve signed up with the Android Market, just 
upload your apps and publish them. “Wait,” you may say, “are you sure?” 
Why, yes, I am! Unlike other mobile marketplaces, the Android Market has no 
app-approval process. All you have to do is write apps and publish them.
 
Technically, anyone can publish anything, but it’s good karma to keep within 
Google’s terms of service and keep your apps family-friendly. Remember 
that Android users come from diverse areas of the world and are in all age 
categories.
Open platform
The Android operating system is open platform, meaning that it’s not tied to 
one hardware manufacturer and/or one provider. As you can imagine, the 
openness of Android is allowing it to gain market share quickly. All hard-
ware manufacturers and providers can make and sell Android devices. The 
Android source code is available at http://source.android.com for 
you to view and/or modify. Nothing is holding you back from digging into 
the source code to see how a certain task is handled. The open-source code 
allows phone manufacturers to create custom user interfaces (UIs) and add 
built-in features to some devices. This also puts all developers on an even 
playing field. Everyone can access the raw Android source code.
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11/2/10   8:51 AM
11/2/10   8:51 AM