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Activity.finish() Calling this method will let the system know that the programmer wants the current Activity to be finished. And hence, it calls up o 阅读全文
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Here is a solution to solve the lack of LaTeX support: by using Codecogs API. For instance, if you need to type a formula y=ax2aa+bx+c Then you can ge 阅读全文
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This is a tutorial for Android to do non-blocking bluetooth socket communication. I am using 32feet Bluetooth library, but it should be the same if yo 阅读全文
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I have a RPi which I intented to use it to crawl data. The development environment in RPi is very bad, so I did my programing in PC. This lead to an i 阅读全文
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One way is to interop it with msvcrt.dll You can pinvoke this C function into your C# application. This process is very easy. There are a few steps: 1 阅读全文
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回调里的self是另一个不同的东西了，通常是触发回调的对象，或_G或nil ，视情况而定 我的 print(self) 输出 userdata function MyClass:sayFromCallback() print('Hello~ in MyClass:sayFromCallback') 阅读全文