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camera_design [2020/08/30 20:16]
127.0.0.1 external edit 		camera_design [2020/08/31 03:24] (current)
paul [Observer Pattern]
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 ====== Camera Design ====== ====== Camera Design ======
 +
 +===== Android Binder =====
 +
 +Android uses an IPC framework called Binder that allows for inter process communication. Everyone in Android is connected together in Binder.
 +
 +===== Intents =====
 +
 +Android allows for processes to communicate with each other using Intents. You can send intents to other processes and then handle their callbacks.
 +
 +{{:pasted:20200830-211833.png?500}}
 +
 +==== Binder Structure ====
 +
 +{{:pasted:20200830-213136.png?500}}
 +
 +Binder allows us to communicate to other process through a managed way. It's pretty much roscore in ROS.
 +
 +Theres a bunch of different stuff that will happen to get messages from senders to receivers. No need to worry about it but here is how it looks.
 +
 +{{:pasted:20200830-224627.png?500}}
 +
 +Here is an interesting example of how this plays out when an app requests a location service.
 +
 +{{:pasted:20200830-224905.png?500}}
  
 ===== OOP ===== ===== OOP =====
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 ===== OOP Patterns ===== ===== OOP Patterns =====
 +
 +The following are different design patterns that can be implemented.
 +
 ==== Strategy Pattern ==== ==== Strategy Pattern ====
  
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 dynamically. dynamically.
  
 +==== Observer Pattern ====
 +
 +This very similar to the publisher subscriber model. An Observer 
 +
 +{{:pasted:20200830-233332.png?500}}
 ===== Video Compression ==== ===== Video Compression ====
  
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