Pro Android Python with SL4A is for programmers and hobbyists who want to write apps for Android devices without having to learn Java first. Paul Ferrill leads you from installing the Scripting Layer for Android (SL4A) to writing small scripts, to more complicated and interesting projects, and finally to uploading and packaging your programs to an Android device. Android runs scripts in many scripting languages, but Python, Lua, and Beanshell are particularly popular. Most programmers know more than one programming language, so that they have the best tool for whatever task they want to accomplish. Pro Android Python with SL4A explores the world of Android scripting by introducing you to the most important open-source programming languages that are available on Android-based hardware. Pro Android Python with SL4A starts by exploring the Android software development kit and then shows you how to set up an Eclipse-based Android development environment. You then approach the world of Android programming by using Beanshell, which runs on the Dalvik, and learning how to write small programs to administer an Android device. Next, discover how Lua, a lightweight language perfectly suited for scripting on smaller devices, can work with Android. Lua can be used for small but important tasks, like SMS encryption and synchronizing photos with flickr. Last, but certainly not least, you will discover the world of Python scripting for SL4A, and the power contained within the full range of Python modules that can combine with the Android SDK. You'll learn to write small location-aware apps to get you started, but by the end of this book, you'll find yourself writing fully GUI-fied applications running on the Android desktop! Pro Android Python with SL4A is rounded out with a chapter on distributing and packaging scripts, a skill that you'll find very useful as you reach out to a wider audience with your programs. What you'll learn * Understand the SL4A * Explore the Android software development kit * Write scripts to administer an Android phone * Write and execute full Python and applications * Learn how to write simple apps using Facades * Explore the full Android development process, from development to packaging Who this book is for This is a book for beginning and intermediate Android developers, and a book for anyone coding in Python, Lua or exploring Beanshell. Table of Contents * Introduction * Getting Started with Android Scripting * Navigating the Android SDK * Developing Androids Scripts with Eclipse * Exploring the Android API * Background Scripting * Python Utilities * Python Dialog-Based GUIs * Python for GUI with WebUI * Packaging and Distributing Your Scripts
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说实话,市面上很多号称“专业级”的技术书,读完后会感觉像是翻了一本超长的官方文档摘要,缺乏实际操作中的智慧结晶。但《Pro Android Python with SL4A》完全不是这样。它的案例选择非常贴合实际工作场景,不是那种为了展示技术而硬编出来的例子。我特别喜欢其中关于利用Python进行设备传感器数据采集和实时反馈的那部分内容,它不仅仅展示了如何调用API,更重要的是,它探讨了在移动设备这种资源受限环境下,如何优化脚本的性能,减少电量消耗,这些都是经验之谈,是教科书上看不到的“内功”。这些实战经验的分享,让我的学习过程充满了“原来如此”的顿悟感,真正感受到了技术带来的效率飞跃。
评分这本书的排版简直是艺术品级别的,说真的,我很少看到技术书籍能把代码示例和理论解释融合得这么自然和谐。通常有些书的图文混排简直是一场灾难,代码块和文字挤在一起,看得人头晕眼花,但这本书完全没有这个问题。每一段重要的概念介绍,都有对应的图示或者清晰的步骤分解,看得人心里明镜似的。而且,代码的字体选择非常友好,高亮显示也很到位,即便是初次接触SL4A(Scripting Layer for Android)的人,也能很快定位到关键函数和参数。我尤其欣赏它对环境配置那一块的处理,很多开发者光是配置环境就能折腾半天,这本书却用非常细致的截图和说明,把整个搭建过程捋得清清楚楚,几乎没有留下任何模糊地带,这点对于追求效率的专业人士来说,简直是救命稻草。我感觉作者是真正从读者的角度出发,替我们踩过所有的坑,然后把捷径画在了纸上,阅读体验因此提升了一个档次。
评分这本书的深度和广度都拿捏得恰到好处,没有那种故作高深的理论堆砌,也没有浅尝辄止的表面介绍,完全是实打实的干货。我原本以为它可能更多地侧重于展示Python脚本如何运行在Android上,但深入阅读后发现,它对底层机制的解释也相当到位。比如,关于权限管理和进程间通信那几章,讲解得非常透彻,让我明白了为什么某些操作需要特定的权限,以及如何用更“Pythonic”的方式去处理这些复杂的系统级交互。对于我这种追求代码健壮性和可维护性的开发者来说,这种对“为什么”的解释比单纯的“怎么做”更宝贵。它不只是教你写出能跑的程序,更重要的是教你写出优雅、稳定、易于理解的代码,这才是衡量一本技术书是否“Pro”的关键标准。
评分哇,我最近入手了一本技术书,名字叫《Pro Android Python with SL4A》,光看名字就觉得挺酷炫的,感觉是那种能把两个热门技术栈——Android开发和Python——结合起来的神器。我本来就是个Python爱好者,对Android开发也略有涉猎,所以这本书简直是为我量身定做的。拿到手沉甸甸的,印刷质量不错,纸张摸着也舒服,这点在长时间阅读技术书籍时特别重要,毕竟眼睛和手感都是体验的一部分嘛。封面设计虽然简单,但那种专业感很强,没有花里胡哨的东西,直奔主题,一看就知道是给正经做开发的人准备的。我迫不及待地翻开了目录,内容组织结构看起来非常清晰,从基础概念的铺垫到实战案例的深入,逻辑链条很顺畅,不像有些书读起来像东拉西扯的笔记。对于我这种希望快速上手,看到具体代码就能理解原理的读者来说,这种结构安排简直是福音。我期待它能教会我如何用Python的简洁和强大去驾驭Android的复杂平台,实现一些更高效的自动化脚本或者特定的应用功能,这才是最吸引我的地方。
评分这本书的叙事风格非常吸引人,它不像那种冷冰冰的编程手册,反而更像是一位经验丰富的前辈在手把手地指导你入门一个全新的技术领域。作者的语气非常鼓励人心,即便是面对一些相对晦涩的概念,也能用生动形象的比喻来解释清楚。阅读过程中,我几乎没有感到任何挫败感,反而充满了探索的乐趣。对于我来说,一本好的技术书,不仅要传授知识,更要点燃学习的热情,这本书无疑做到了。它让我对未来利用Python结合移动开发的可能性充满了期待,感觉自己手中的工具箱一下子扩大了好几倍,可以去挑战以前觉得遥不可及的项目了,这种被赋能的感觉,是任何一本普通书籍都无法比拟的。
评分看了gui部分,还真是坑爹。。这封装的
评分大体看过,感觉若能找个开源的python sl4a完整项目会更好。这本书太罗嗦,知识点不多。建议想读本书的家伙先大体浏览下在决定要不要细读。ps:毫无疑问写本书的是大牛。:)
评分不适合自学,需要有一定的基础
评分这个书出得还真是快呀. 不过确实比网站上的资料详细得多.
评分最关心的是Packaging and Distributing
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