sky/README.md - Issue 1005393006: Clean up examples directory

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Issue 1005393006: Clean up examples directory (Closed) Base URL: git@github.com:domokit/mojo.git@master

Patch Set: Created 5 years, 9 months ago

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1 Sky	1 Sky

2 ===	2 ===

3	3

4 Sky is an experimental, high-performance UI framework for mobile apps. Sky helps	4 Sky is an experimental, high-performance UI framework for mobile apps. Sky helps

5 you create apps with beautiful user interfaces and high-quality interactive	5 you create apps with beautiful user interfaces and high-quality interactive

6 design that run smoothly at 120 Hz.	6 design that run smoothly at 120 Hz.

7	7

8 Sky consists of two components:	8 Sky consists of two components:

9	9

10 1. The Sky engine. The [engine](engine) is the core of the system system.	10 1. The Sky engine. The [engine](engine) is the core of the system system.

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43 ```	43 ```

44	44

45 Execution starts in `main`, which creates the `HelloWorldApp`. The framework	45 Execution starts in `main`, which creates the `HelloWorldApp`. The framework

46 then marks `HelloWorldApp` as dirty, which schedules it to build during the next	46 then marks `HelloWorldApp` as dirty, which schedules it to build during the next

47 animation frame. Each animation frame, the framework calls `build` on all the	47 animation frame. Each animation frame, the framework calls `build` on all the

48 dirty components and diffs the virtual `Node` hierarchy returned this frame with	48 dirty components and diffs the virtual `Node` hierarchy returned this frame with

49 the hierarchy returned last frame. Any differences are then applied as mutations	49 the hierarchy returned last frame. Any differences are then applied as mutations

50 to the physical heiarchy retained by the engine.	50 to the physical heiarchy retained by the engine.

51	51

52 For a more featureful example, please see the	52 For a more featureful example, please see the

53 [example stocks app](examples/stocks-fn/lib/stocks_app.dart).	53 [example stocks app](examples/stocks/lib/stocks_app.dart).

54	54

55 Services	55 Services

56 --------	56 --------

57	57

58 Sky apps can access services from the host operating system using Mojo. For	58 Sky apps can access services from the host operating system using Mojo. For

59 example, you can access the network using the `network_service.mojom` interface.	59 example, you can access the network using the `network_service.mojom` interface.

60 Although you can use these low-level interfaces directly, you might prefer to	60 Although you can use these low-level interfaces directly, you might prefer to

61 access these services via libraries in the framework. For example, the	61 access these services via libraries in the framework. For example, the

62 `fetch.dart` library wraps the underlying `network_service.mojom` in an	62 `fetch.dart` library wraps the underlying `network_service.mojom` in an

63 ergonomic interface:	63 ergonomic interface:

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81 --------------	81 --------------

82	82

83 We're documenting Sky with a [set of technical specifications](specs) that	83 We're documenting Sky with a [set of technical specifications](specs) that

84 define precisely the behavior of the engine. Currently both the implementation	84 define precisely the behavior of the engine. Currently both the implementation

85 and the specification are in flux, but hopefully they'll converge over time.	85 and the specification are in flux, but hopefully they'll converge over time.

86	86

87 Contributing	87 Contributing

88 ------------	88 ------------

89	89

90 Instructions for building and testing Sky are contained in [HACKING.md](HACKING. md).	90 Instructions for building and testing Sky are contained in [HACKING.md](HACKING. md).

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