May 2017
Beginner to intermediate
470 pages
10h 49m
English
Content preview from Android System Programming
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Extending recovery
The original AOSP recovery is written in C++ language. The implementation of key functionalities is encapsulated in two classes. In the documentation of AOSP, it is recommended to extend recovery to create your own classes by inheriting these two classes.
The first class that we will extend is class Device defined in $AOSP/ bootable/recovery/device.h and the second one is the ScreenRecoveryUI class defined in $AOSP/bootable/recovery/screen_ui.h. The ScreenRecoveryUI class is inherited from another class, RecoveryUI, which is used by recovery to perform user interaction functions. The AOSP recovery uses the polymorphism of C++ so that we can extend both the Device and RecoveryUI classes to let recovery use our version of ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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