Crafting Beautiful Code

  • I am developing a Windows desktop application, called Bar Model Maker, that allows you to draw Bar Models by writing Bar Model Script. The tool displays the bar model as you are writing the script. Once you’ve specified enough constraints, you will get the accurate bar model. The user interface… Read more.

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    1–2 minutes

  • Bar modeling, also known as Singapore Math Method, is a method that helps students to visualize and understand word problems in Math. However, drawing an effective bar model is challenging, teaching a student to draw bar models is even more so. In most cases, students just see the final models… Read more.

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    3–4 minutes

  • I’ve published an Android app, MathGrapher, a while ago. It seems to be attracting more and more users. With MathGrapher, you can visualize function equations, parametric equations, and/or polar equations. You can also animate an equation by defining the range of one or more parameters: a, b, c, or d.… Read more.

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    1–2 minutes

  • I’ve published a new Android app, SATWordPuzzle, with which you can play CrossWord and WordSearch puzzle games as well as learn SAT vocabulary. SATWordPuzzle generates CrossWord and WordSearch puzzles from over 5000 SAT vocabulary. You can also learn the definitions of the words, and add them as favorites. The favorite… Read more.

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    1–2 minutes

  • In some of my apps, I need to use a pre-existing database, which is very likely to be upgraded in a later release and which could be pretty big (over the roughly 1MB limit of an asset file). After some experiments and searching on the Web (especially on StackOverflow), I’ve… Read more.

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    2–3 minutes

  • iOS app成语纵横1.1版的简体版和繁体版都被approve了。1.1版主要是提高可用性(Usability)。在找成语时通过滑动手指找出成语，并能提供即时反馈。在玩填字游戏时，可沿某成语的方向滑动手指，调出该成语的提示。 Read more.

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    1–2 minutes

  • 成语纵横-简体版发布了。在iPhone和iPad上都可运行。你可以玩找成语或填字游戏，也可以学习成语的解释、出处、示例等。 Read more.

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    1–2 minutes

  • 有用户反映成語縱橫1.3版似乎变慢了。在1.3版我主要引入了即时反馈，即在一个成语所有的字被找出后，马上自动改变成语的背景色。另一个改动是利用Android的GestureDector检测单点触击和滑动手指。这两项改动都可能影响速度。 在下一版，我将在设置中增加一个选项，允许用户选择是否提供即时反馈。同时改进GestureDector的用法。 在新版推出之前，请尽量通过滑动手指一次选择多个字。这样会大大提高游戏的流畅性。这也同样适合于古诗纵横游戏。 Read more.

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    1–2 minutes

  • 刚刚发布了古诗纵横（繁体版和简体版）。 古诗纵横采用与成语纵横相同的填字游戏生成引擎，从106首脍炙人口的古诗中随机生成“找诗句”或“填字”游戏。在游戏过程中，可参考提示。 在玩找诗句游戏时，可单选某一个字，或通过滑动手指一次选择某诗句的所有的字。在一个诗句的所有的字都被选出后，该诗句会自动变色，表示该诗句已被找出。 在玩填字游戏时，沿着某一个诗句的方向滑动手指，能自动调出该诗句的提示。 你可以读任意一首古诗、或某作者的诗。你还可以查找诗句。每首诗的关键字都有注释。 Read more.

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    1–2 minutes

  • 我把 Android 版成語縱橫 移植到 iOS，在iPhone和iPad上都可运行。 可从Apple app store 下载。 I’ve ported the Android app 成語縱橫 to iOS and it was published at Apple app store . It can run on both iPhone and iPad. Read more.

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    1–2 minutes

Crafting Beautiful Code

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Month Discover: Henri Rousseau's Virgin Forest with Sunset (1910). Original from the Kunstmuseum Basel Museum.