哪款iPhone“Active SDK”我应该使用哪个版本？ [英] Which iPhone "Active SDK" version should I use?

问题描述

目前（截至2008年12月）iPhone SDK允许我在构建应用程序时选择3个版本：2.0,2.1,2.2。 - 我将忽略下面的2.1。

The current (as of Dec 2008) iPhone SDK allows me to pick between 3 versions when I want to build an app: 2.0, 2.1, 2.2. -- I'll ignore 2.1 below.

我的假设：

• 2.2有更多的API函数可用于2.0，


• 2.2修复了自2.0以来的错误，


• 2.2向后兼容2.0（用于构建和运行） ），


• 如果我使用SDK 2.0构建，我的应用程序将在iPhone 2.2上运行，


• 如果我使用SDK 2.2构建，我的应用程序赢了适用于iPhone 2.0。

• 2.2 has more API functions available than 2.0,
• 2.2 has fixed bugs since 2.0,
• 2.2 is backward-compatible with 2.0 (both for building and running),
• If I build with SDK 2.0, my app will work on iPhone 2.2,
• If I build with SDK 2.2, my app won't work on iPhone 2.0.

我认为使用可以构建应用程序的最早版本是最好的，这样它会在运行较旧操作系统的iPhone上运行。

I would think that using the earliest version that can build the app would be best, this way it will run on iPhones running older OSes.

但是，如果我用2.0构建它，我的应用程序是否会丢失一些风险？也许一些速度或更好的UI元素。但也许在2.0和2.2之间没有太大的区别甚至担心它？

But is there a risk that my app would be missing something if I built it with 2.0? Maybe some speed or nicer UI elements. But maybe there's not that much difference between 2.0 and 2.2 to even worry about it?

所以我的问题是：我应该选择哪种SDK？

So my question is: Which SDK should I select?

1. 我可以构建的earlist SDK，以扩大我的目标市场。


2. 总是最新的SDK，以便我的应用程序受益来自改进 - 以可能减少我的市场为代价。

（如果答案很明显，为什么我有一个选择？！）

(And if the answer is obvious, why do I have a choice?!)

推荐答案

我选择＃1选项 - 将其编译为2.0。这就是我们为我们的应用所做的事情。仍然有很多人在运行旧的2.0 O / S，如果你编译为2.2你的应用程序将无法在他们的设备上运行。

I'd pick option #1 - compile it to 2.0. This is what we do for our app. There are still a lot of people running the old 2.0 O/S and if you compile to 2.2 your app won't run on their device.

那说，如果你开发你的应用程序并遇到一个错误，并发现它已在以后的固件版本中得到修复，除非有解决方法，否则你可能没有太多选择。每个新版本都添加了新功能，但我不知道这些功能的完整列表（在API级别）。

That said, if you develop your app and run into a bug and find out that it's been fixed in a later firmware version, you may not have much of an option unless there's a workaround. There are also new features added to each new version although I do not know of a comprehensive list of what those features are (at an API level).

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