android - Android SDK 中的 Google API 有什么区别

Question

从 android 5.0 开始，Google 添加了 Google API。那到底是什么？

Google APIs intel atom_64 x86 system image 和 Google APIs intel atom x86 system image 有什么区别？

我知道 intel atom 图像要快得多，但数量很多。

我应该使用什么版本作为我的主模拟器？

Answer 1

Since android 5.0, Google added Google APIs. what is that exactly?

一些库 jar 和相应的文档。查看 Android SDK 中的 add-ons 目录。来自 add-ons/addon-google_apis-google-23/manifest.ini:

# details for each library
com.google.android.maps=maps.jar;API for Google Maps
com.android.future.usb.accessory=usb.jar;API for USB Accessories
com.google.android.media.effects=effects.jar;Collection of video effects

通常，您不需要安装 Google API。

And what is the difference between Google APIs intel atom_64 x86 system image and Google APIs intel atom x86 system image? ... and what version should I use as my main emulator?

一个是 64 位的，另一个是 32 位的。根据您机器的架构，64 位可能会稍快一些。来自 https://software.intel.com/en-us/android/articles/how-to-develop-and-evaluate-64-bit-android-apps-on-intel-x86-platforms :

Android L with 64-bit technologies for Intel Atom processor-based platforms can help developers to optimize their applications now. Building Android applications for 64-bit is just as easy as building traditional 32-bit Android applications. You can now use the official Android 64-bit emulator to run and debug 64-bit apps. To test the performance of 64-bit x86 Android platforms, we rebuilt several open source projects to 64-bit and had several top ISVs in PRC build 64-bit versions of their apps. The performance benchmarks show 7-8% (or even 20% on one special case) performance gains using 64-bit compared to 32-bit.

通常，您只需安装 Google APIs Intel x86 Atom_64 System Image 即可使用 Google APIs 创建模拟器。如上所述，您无需安装单独的 Google APIs 软件包。

如果您不使用任何 Google API，则可以安装 Intel x86 Atom_64 System Image。