Android Up Close, Martin Sonc

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Engineers working on the Android platform often point out that Android is not Java and should be learned as a completely new language even by the most experienced Java programmers. That is why they avoided naming framework components using standard Java naming conventions and decided to use brand new names. We are introduced to Context, Activities, Cursors and more. We will look for parallels with Java world where possible and try to explain why all the differences are present and required.

Tecnologia

@LambergaR|Martin Sonc|martin@sonc.si
JAVA on Android != JAVA

@LambergaR|Martin Sonc|martin@sonc.si
Dalvik VM
Register based
Optimized for mobile
JAVA Bytecode
Dalvik Executable (.dex)

@LambergaR|Martin Sonc|martin@sonc.si
Security
Sharing

@LambergaR|Martin Sonc|martin@sonc.si
Intent Activity
Context

@LambergaR|Martin Sonc|martin@sonc.si
Design & Layout
XML
Code assist
Heavily optimized

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