Android SDK updates those files

2. Previous experience, completed the development of the Android environment, I believe we also downloaded the 1.52G, has been downloaded adt_bundle.

   So, let's click on SDK Manager.exe to see what it is.

4. 2

   For the entire directory structure, we analyze 1.1 points

6. 3

   First, look at the tools directory.

   1) Android SDK Tools

   The Android SDK tool, which is a collection of many executable commands, something that must be downloaded;

   But remember, generally do not need to update the goods. Because, update irreversible, you but you update the goods, will become a new version, so you in the development of many things will change, may affect your study, so, do not update him.

   The contents of the download, under the Tools directory in the SDK directory.

   2) Android SDK Platform-tools

   SDK Platform Toolset, something that must be downloaded, such as the ADB command. The contents of the download are below Platform-tools in the SDK directory.

8. 4

   Then, look at each version of the directory schema.

   For example, take Android 4.3 (API  18) as an example.

   1) SDK platform

   SDK platform. This is very important and must be downloaded. As long as this is there, you can create the simulator. If this is not the case, the version of the emulator cannot be created.

   The content that it downloads is saved under platforms in the SDK directory.

   2) documentation for Android SDK

   This is the help document.

   These can be seen on the official website of Android, but now it's not blocked, it's hard to access, so when you download it, you can watch it locally offline.

   Its contents are downloaded under Docs in the SDK directory.

   3) arm Eabi v7a system image

   . On the market, the mainstream CPU core, one is arm, one is Intel. When we created the phone simulator, we could choose the CPU architecture in addition to the version number.

   4) sources for Android SDK

   Android API source, nothing to say. The

   is downloaded to sources under the SDK directory.

10. 5

    Come and see extras.

    1) Android Support Library

    Android support Class library. Several jar packages are downloaded. This should be downloaded when the lower version uses some of the features of the high version.

    For example, the new features of android4.0 are taken out as a jar package, so that in android2.0, these packages can be used.

    2) Intel x86 emulator Accelerator

    Intel Emulator Accelerator. The simulator is slow to run. After this download, the running speed will be increased quickly, generally must download.

    Among them, AMD's CPUs are not supported. Intel seems to support part of it, and the core should not support it.

    Oh, yes, this thing has to be manually installed in person before it can be used. The path is:

    \sdk\extras\intel\hardware_accelerated_execution_manage

    Because my CPU is not supported, so there is no installation, if you need to install, you can check online

12. 6

    OK, the entire directory schema is the case, those should be updated, which should not be updated also said clearly, below, how should be updated.

    END

Two. Updating the SDK

1. 1

   Because the Android website is inaccessible, it cannot be updated naturally. So you need to change the address.

2. 2

   Select Tools->options.

   As shown in the following:

   Server Location Input: mirrors.neusoft.edu.cn

   Port position Input: 80

   Others, please tick the first one.

   This way, you can update it.

3. 3

   In the directory you need to update, tick, click: Install packages.

4. 4

   1) Click on the top of the left box:

   Android SDK License

   2) Select Accept License

   3) Finish the first two steps, find the "Install" button can click, then click on it to start a long journey of renewal.

   However, if you download the 1.5G of my previous experience, you do not need to do this step, because it has been updated, the content of which is enough for you to learn the initial development.

5. 5

   OK, this step, you already know the directory structure of the SDK, as well as the role of each directory, but also know how to update.

   The next experience will show you how to build your first Android development environment.

   END

Three. Summary

1. 1

   Light know the steps of deployment is not possible, but also must know the meaning of each step of operation, so as to be able to understand more deeply, if I have said wrong, please leave a message to inform, thank you.

2. 2

   Finally, if you like, please collect, comment down, thank you!

Android SDK updates those files