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I am not able to find the offline docs for android. Can someone provide a link?
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If you install the SDK, the offline documentation can be found in $ANDROID_SDK/docs/.
45k18130152
This thread is a little old, and I am brand new to this, but I think I found the preferred solution.
First, I assume that you are using Eclipse and the Android ADT plugin.
In Eclipse, choose Window/Android SDK Manager.
In the display, expand the entry for the MOST RECENT PLATFORM, even if that is not the platform that your are developing for.
As of Jan 2012, it is "Android 4.0.3 (API 15)".
When expanded, the first entry is "Documentation for Android SDK"
Click the checkbox next to it, and then click the "Install" button.
When done, you should have a new directory in your "android-sdks" called "doc".
Look for "offline.html" in there.
Since this is packaged with the most recent version, it will document the most recent platform, but it should also show the APIs for previous versions.
here is direct link for api 17 documentation. Just extract at under docs folder. Hope it helps.
& (129 MB)
16.8k29137237
At first choose your API level from the following links:
API Level 17:
API Level 18:
API Level 19:
Android-L API doc:
download and extract it in your sdk driectory.
In your eclipse IDE:
at project -& properties -& java build path -& Libraries -& Android x.x -& android.jar -& javadoc
press edit in right:
javadoc URL -& Browse
select "docs/reference/" in archive extracted directory
press validate... to validate this javadoc.
In your IntelliJ IDEA
at file -& Project Structure
Select SDKs from left panel -> select your sdk from middle panel -> in right panel go to Documentation Paths tab so click plus icon and select docs/reference/ in archive extracted directory.
enjoy the offline javadoc...
First of All you should download the Android SDK.
Download here:
Then, as stated in the SDK README:
The Android SDK archive now only
contains the tools. It no longer comes
populated with a specific Android
platform or Google add-on. Instead you
use the SDK Manager to install or
update SDK components such as
platforms, tools, add-ons, and
documentation.
30.5k21102181
Write the following in linux terminal:
$ wget -r /reference/packages.html
4,61062037
Here you can find the online API
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移动开发下载排行装了一日一夜都装不好的Android开发环境_Java123社区微信号：java123msg |||[][]当前位置: &
& 装了一日一夜都装不好的Android开发环境通过官网那个中间软件下载不了SDK,ADK.哪里可以直接下载SDK，ADK 现在没有直接下的，你的网速慢么？不要一次全下，一个版本一个版本来 https://dl-/android/repository/android-2.0.1_r通过官网那个中间软件下载不了SDK,ADK.哪里可以直接下载SDK，ADK现在没有直接下的，你的网速慢么？不要一次全下，一个版本一个版本来https://dl-//repository/android-2.0.1_r01-windows.zip网速慢的话就没办法喽，哪都一样分别参考：http://blog.csdn.net/aminfo/article/details/7788614http://blog.csdn.net/aminfo/article/details/7771584AOA黄金开发包1.0【csdn资源】 下载下来，一键安装即可。不用动脑了。参考：还没解决，用那个SDK Manager也不能下载，还有用这个http://dl-///不能下载ADT用SDK Manager不能下载SDK，谁有现成的？需要的自己下：https://dl-/android/repository/android-1.1_r1-windows.ziphttps://dl-/android/repository/android-1.5_r04-windows.ziphttps://dl-/android/repository/android-1.6_r03-windows.ziphttps://dl-/android/repository/android-2.0_r01-windows.ziphttps://dl-/android/repository/android-2.1_r03-.ziphttps://dl-/android/repository/android-2.3.1_r02-linux.ziphttps://dl-/android/repository/android-2.3.3_r02-linux.ziphttps://dl-/android/repository/android-3.0_r02-linux.ziphttps://dl-/android/repository/android-3.2_r01-linux.ziphttps://dl-/android/repository/android-14_r03.ziphttps://dl-/android/repository/android-15_r03.ziphttps://dl-/android/repository/sysimg_armv7a-14_r02.ziphttps://dl-/android/repository/sysimg_armv7a-15_r02.ziphttps://dl-/android/repository/samples-2.2_r01-linux.ziphttps://dl-/android/repository/samples-2.3_r01-linux.ziphttps://dl-/android/repository/samples-2.3.3_r01-linux.ziphttps://dl-/android/repository/samples-3.1_r01-linux.ziphttps://dl-/android/repository/samples-14_r02.zip如果还没解决加我QQ
我有打包好的！https://dl-/android/repository/samples-15_r02.ziphttps://dl-/android/repository/platform-tools_r11-windows.ziphttps://dl-/android/repository/tools_r19-windows.ziphttps://dl-/android/repository/docs-15_r02.ziphttps://dl-/android/repository/sources-14_r01.ziphttps://dl-/android/repository/support_r07.zip给个直接下载SDK的地址吧，SDK Manager里面菜单 -& Tools -& Offcial Add-on Sites -& Enable Allhttps://dl-/android/repository/samples-3.2_r01-linux.ziphttps://dl-/android/repository/samples-3.0_r01-linux.zip再看看 SDK Manager里面菜单 -& Tools -& User Defined Sites 添加上：http://android-misc-/svn/trunk/addon.xml/sdk/index.htmlSDK Manager里面菜单 -& 里面没有可控制的东西Fetching https://dl-/android/repository/addons_list-1.xmlFailed to fetch URL https://dl-/android/repository/addons_list-1.xml, reason: Connection to https://dl- refusedFetched Add-ons List successfullyFetching URL: https://dl-/android/repository/repository-6.xmlFailed to fetch URL https://dl-/android/repository/repository-6.xml, reason: Connection to https://dl- refusedDone loading packages.试了很多次啦，重装系统都也不行，你说的是ADT下载不了？还是SDK下载不了？ADT SDK都可以去官网直接下载的啊，我ADT 和 SDK都是从网上下载的，注意：你在这个网站下载的SDK不是全部；还要按照:……/android sdk 更新；以上网址，下载个中间件没用，关键是SDK下载不了ADT-20.0.3.zipandroid-sdk_r20.0.3-windows.zip然后版本的SDK就是从以上我给你的网址中下载的，我因为重装系统，也是前几天重新装的android开发环境，sdk 可以从官网下的，不过对应的各版本平台支撑环境需要在线下载下载很慢 ，不过 要有耐心，打开下载页面可以干的别的事了都是我机子上装了的测试过的，没问题啊，不是下载慢，是不能下载，有空加我Q远程看一下，谢谢/sdk/index.html网页左边：Download/installing the SDK =&一步一步做下去，英语不好没关系，光打上面命令就可以了；再步行“google Translate”；https://dl-/android/repository/samples-2.1_r01-linux.zip楼主装好环境了吗？https://dl-/android/repository/sources-15_r02.zip共2页顶一下(0)0%踩一下(0)0%------分隔线------上一篇： 下一篇： 栏目列表推荐内容在一款游戏中，除了华丽的界面 UI 直接吸引玩家外，另外重要的...
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OpenCV4Android SDK
This tutorial was designed to help you with installation and configuration of OpenCV4Android SDK.
This guide was written with MS Windows 7 in mind, though it should work with GNU Linux and Apple
Mac OS as well.
This tutorial assumes you have the following software installed and configured:
Android SDK and NDK
Eclipse IDE
ADT and CDT plugins for Eclipse
If you need help with anything of the above, you may refer to our
If you encounter any error after thoroughly following these steps, feel free to contact us via
discussion group or
OpenCV . We’ll do our best to help you out.
Tegra Android Development Pack users
You may have used
(TADP) released by NVIDIA for Android development environment setup.
Beside Android development tools the TADP 2.0 includes OpenCV4Android SDK, so it can be already
installed in your system and you can skip to
section of this tutorial.
More details regarding TADP can be found in the
sdk folder contains OpenCV API and libraries for Android:
sdk/java folder contains an Android library Eclipse project providing OpenCV Java API that
can be imported into developer’
sdk/native folder contains OpenCV C++ headers (for JNI code) and native Android libraries
(*.so and *.a) for ARM-v5, ARM-v7a and x86
sdk/etc folder contains Haar and LBP cascades distributed with OpenCV.
apk folder contains Android packages that should be installed on the target Android device
to enable OpenCV library access via OpenCV Manager API (see details below).
On production devices that have access to Google Play Market (and Internet) these packages will be
installed from Market on the first start of an application using OpenCV Manager API.
But devkits without Market or Internet connection require this packages to be installed manually.
Install the Manager.apk and optional binary_pack.apk if it needed.
for details.
Installation from Internet is the preferable way since OpenCV team may publish updated
versions of this packages on the Market.
samples folder contains sample applications projects and their prebuilt packages (APK).
Import them into Eclipse workspace (like described below) and browse the code to learn possible
ways of OpenCV use on Android.
doc folder contains various OpenCV documentation in PDF format.
It’s also available online at .
The most recent docs (nightly build) are at .
Generally, it’s more up-to-date, but can refer to not-yet-released functionality.
Starting from version 2.4.3 OpenCV4Android SDK uses OpenCV Manager API for library
initialization. OpenCV Manager is an Android service based solution providing the following
benefits for OpenCV applications developers:
Compact apk-size, since all applications use the same binaries from Manager and do not store
Hardware specific optimizations are automatically enabled on all
Automatic u
Trusted OpenCV library source. All packages with OpenCV are published on Google P
For additional information on OpenCV Manager see the:
Manual OpenCV4Android SDK setup
Get the OpenCV4Android SDK
and download the latest available version. Currently it’s .
Create a new folder for Android with OpenCV development. For this tutorial we have unpacked
OpenCV SDK to the C:\Work\OpenCV4Android\ directory.
Better to use a path without spaces in it. Otherwise you may have problems with ndk-build.
Unpack the SDK archive into the chosen directory.
You can unpack it using any popular archiver (e.g with ):
On Unix you can use the following command:
unzip ~/Downloads/OpenCV-2.4.11-android-sdk.zip
Import OpenCV library and samples to the Eclipse
Start Eclipse and choose your workspace location.
We recommend to start working with OpenCV for Android from a new clean workspace. A new Eclipse
workspace can for example be created in the folder where you have unpacked OpenCV4Android SDK package:
Import OpenCV library and samples into workspace.
OpenCV library is packed as a ready-for-use .
You can simply reference it in your projects.
Each sample included into the OpenCV-2.4.11-android-sdk.zip is a regular Android project that already
references OpenCV library. Follow the steps below to import OpenCV and samples into the workspace:
OpenCV samples are indeed dependent on OpenCV library project so don’t forget to import it to your workspace as well.
Right click on the Package Explorer window and choose Import... option
from the context menu:
In the main panel select General ? Existing Projects into Workspace and
press Next button:
In the Select root directory field locate your OpenCV package folder. Eclipse
should automatically locate OpenCV library and samples:
Click Finish button to complete the import operation.
After clicking Finish button Eclipse will load all selected projects into workspace,
and you have to wait some time while it is building OpenCV samples. Just give a minute to
Eclipse to complete initialization.
After the initial import, on a non-Windows (Linux and Mac OS) operating system Eclipse
will still show build errors for applications with native C++ code. To resolve the
issues, please do the following:
Open Project Properties -& C/C++ Build, and replace “Build command” text
to &${NDKROOT}/ndk-build& (remove .cmd at the end).
In some cases the build errors don’t disappear, then try the following actions:
right click on OpenCV Library project -& Android Tools -& Fix Project Properties,
then menu Project -& Clean... -& Clean all
right click on the project with errors -& Properties -& Android, make sure the
Target is selected and is Android 3.0 or higher
check the build errors in the Problems view window and try to resolve them by yourselves
Once Eclipse completes build you will have the clean workspace without any build errors:
Running OpenCV Samples
At this point you should be able to build and run the samples. Keep in mind, that
face-detection and Tutorial 2 - Mixed Processing include some native code and
require Android NDK and NDK/CDT plugin for Eclipse to build working applications. If you haven’t
installed these tools, see the corresponding section of .
Please consider that some samples use Android Java Camera API, which is accessible
with an AVD. But most of samples use OpenCV Native Camera which may not work with
an emulator.
Recent Android SDK tools, revision 19+ can run ARM v7a OS images but they available not
for all Android versions.
Well, running samples from Eclipse is very simple:
Connect your device with adb tool from Android SDK or create an emulator with camera support.
document for help with Android Emulator.
for help with real devices (not emulators).
Select project you want to start in Package Explorer and just press Ctrl + F11
or select option Run ? Run from the main menu, or click Run button on the toolbar.
Android Emulator can take several minutes to start. So, please, be patient.
On the first run Eclipse will ask you about the running mode for your application:
Select the Android Application option and click OK button. Eclipse will install and run the sample.
Chances are that on the first launch you will not have the
package installed.
In this case you will see the following message:
To get rid of the message you will need to install OpenCV Manager and the appropriate OpenCV binary pack.
Simply tap Yes if you have Google Play Market installed on your device/emulator. It will redirect you to the corresponding page on Google Play Market.
If you have no access to the Market, which is often the case with emulators - you will need to install the packages from OpenCV4Android SDK folder manually. See
for details.
1&Android SDK path&/platform-tools/adb install &OpenCV4Android SDK path&/apk/OpenCV_2.4.11_Manager_2.20_armv7a-neon.apk
armeabi, armv7a-neon, arm7a-neon-android8, mips and x86 stand for
platform targets:
armeabi is for ARM v5 and ARM v6 architectures with Android API 8+,
armv7a-neon is for NEON-optimized ARM v7 with Android API 9+,
arm7a-neon-android8 is for NEON-optimized ARM v7 with Android API 8,
mips is for MIPS architecture with Android API 9+,
x86 is for Intel x86 CPUs with Android API 9+.
If using hardware device for testing/debugging, run the following command to learn
its CPU architecture:
adb shell getprop ro.product.cpu.abi
If you’re using an AVD emulator, go Window & AVD Manager to see the
list of availible devices. Click Edit in the context menu of the
selected device. In the window, which then pop-ups, find the CPU field.
You may also see section
for details.
When done, you will be able to run OpenCV samples on your device/emulator seamlessly.
Here is Sample - image-manipulations sample, running on top of stock camera-preview of the emulator.
What’s next
Now, when you have your instance of OpenCV4Adroid SDK set up and configured,
you may want to proceed to using OpenCV in your own application.
You can learn how to do that in a separate
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