需要翻墙，建议使用VPN，下载前准备点时间配置网络环境。我的百度网盘好像有~~不过忘记地址了，改天共享，或者私聊我。
2015.4 Android 5.1
Android Studio
https://dl.google.com/dl/android/studio/install/1.1.0/android-studio-bundle-135.1740770-windows.exe
https://dl.google.com/dl/android/studio/install/1.1.0/android-studio-ide-135.1740770-windows.exe
https://dl.google.com/dl/android/studio/ide-zips/1.1.0/android-studio-ide-135.1740770-windows.zip
https://dl.google.com/dl/android/studio/install/1.1.0/android-studio-ide-135.1740770-mac.dmg
https://dl.google.com/dl/android/studio/ide-zips/1.1.0/android-studio-ide-135.1740770-linux.zip
SDK Tools only
http://dl.google.com/android/installer_r24.1.2-windows.exe
http://dl.google.com/android/android-sdk_r24.1.2-windows.zip
http://dl.google.com/android/android-sdk_r24.1.2-macosx.zip
http://dl.google.com/android/android-sdk_r24.1.2-linux.tgz
NDK
没有变化同下边的 Anroid 5.0 r10d
2014.12 Android 5.0
Android Studio
https://dl.google.com/dl/android/studio/install/1.0.1/android-studio-bundle-135.1641136.exe
https://dl.google.com/dl/android/studio/install/1.0.1/android-studio-ide-135.1641136.exe
https://dl.google.com/dl/android/studio/ide-zips/1.0.1/android-studio-ide-135.1641136-windows.zip
https://dl.google.com/dl/android/studio/install/1.0.1/android-studio-ide-1641136.dmg
https://dl.google.com/dl/android/studio/ide-zips/1.0.1/android-studio-ide-135.1641136-linux.zip
SDK Tools only
http://dl.google.com/android/installer_r24.0.2-windows.exe
http://dl.google.com/android/android-sdk_r24.0.2-windows.zip
http://dl.google.com/android/android-sdk_r24.0.2-macosx.zip
http://dl.google.com/android/android-sdk_r24.0.2-linux.tgz
NDK
http://dl.google.com/android/ndk/android-ndk-r10d-windows-x86.exe
http://dl.google.com/android/ndk/android-ndk-r10d-windows-x86_64.exe
http://dl.google.com/android/ndk/android-ndk-r10d-darwin-x86.bin
http://dl.google.com/android/ndk/android-ndk-r10d-darwin-x86_64.bin
http://dl.google.com/android/ndk/android-ndk-r10d-linux-x86.bin
http://dl.google.com/android/ndk/android-ndk-r10d-linux-x86_64.bin
2014.7.2 Android 4.4
ADT Bundle
http://dl.google.com/android/adt/adt-bundle-windows-x86-20140702.zip
http://dl.google.com/android/adt/adt-bundle-windows-x86_64-20140702.zip
http://dl.google.com/android/adt/adt-bundle-mac-x86_64-20140702.zip
http://dl.google.com/android/adt/adt-bundle-linux-x86-20140702.zip
http://dl.google.com/android/adt/adt-bundle-linux-x86_64-20140702.zip
SDK Tools Only
http://dl.google.com/android/android-sdk_r23.0.2-windows.zip
http://dl.google.com/android/installer_r23.0.2-windows.exe
http://dl.google.com/android/android-sdk_r23.0.2-macosx.zip
http://dl.google.com/android/android-sdk_r23.0.2-linux.tgz
ADT Eclipse Plugin
https://dl.google.com/android/ADT-23.0.6.zip
Android Studio
http://dl.google.com/android/studio/install/0.8.6/android-studio-bundle-135.1339820-windows.exe
http://dl.google.com/android/studio/install/0.8.6/android-studio-bundle-135.1339820-mac.dmg
http://dl.google.com/android/studio/install/0.8.6/android-studio-bundle-135.1339820-linux.tgz
Android NDK
http://dl.google.com/android/ndk/android-ndk32-r10-windows-x86.zip
http://dl.google.com/android/ndk/android-ndk32-r10-windows-x86_64.zip
http://dl.google.com/android/ndk/android-ndk32-r10-darwin-x86.tar.bz2
http://dl.google.com/android/ndk/android-ndk32-r10-darwin-x86_64.tar.bz2
http://dl.google.com/android/ndk/android-ndk32-r10-linux-x86.tar.bz2
http://dl.google.com/android/ndk/android-ndk32-r10-linux-x86_64.tar.bz2
http://dl.google.com/android/ndk/android-ndk64-r10-windows-x86.zip
http://dl.google.com/android/ndk/android-ndk64-r10-windows-x86_64.zip
http://dl.google.com/android/ndk/android-ndk64-r10-darwin-x86.tar.bz2
http://dl.google.com/android/ndk/android-ndk64-r10-darwin-x86_64.tar.bz2
http://dl.google.com/android/ndk/android-ndk64-r10-linux-x86.tar.bz2
http://dl.google.com/android/ndk/android-ndk64-r10-linux-x86_64.tar.bz2
http://dl.google.com/android/ndk/android-ndk-r10-cxx-stl-libs-with-debug-info.zip
如果下载速度很慢或者无法下载,有三种解决方法
1.忍耐,多试几次。
2.使用P2SP下载工具,比如迅雷,百度云离线.
3.你们懂得.
无法在线升级请看下边
修改hosts 文件：
sudo vi /etc/hosts
添加
XXX.XXX.XXX.XXX dl-ssl.google.com
XXX.XXX.XXX.XXX dl.google.com
上边的IP地址从 http://ping.chinaz.com/ 得到