sdk

如果我们要在一台开发主机上搭一个编译环境，我们需要安装一堆依赖库和编译工具。如果我们有多个不同的项目同时进行，这些项目的编译工具和依赖库又都不一样，如果我们把这些东西全都塞到一台机器里，会不会有冲突呢？ 如果我们想保持开发主机的干净，做到项目隔离，python里面我们可以切换env。我们也可以用docker来实现开发环境的构建，这样做还有一个好处，那就是可复用，如果你用docker搭好了一个环境，可以很容易在另一台机器上用docker image构建一个同样的环境。 下面我们想建立一个alpine linux的编译环境。 首先我们创建一个工作目录 ~/$ mkdir alpine-sdk ~/$ cd alpine-sdk ~/alpine-sdk$ 然后创建Dockerfile ~/alpine-sdk$ cat Dockerfile FROM alpine:3.7 RUN echo "http://mirrors.nju.edu.cn/alpine/v3.7/main" > /etc/apk/repositories RUN echo "http://mirrors.nju.edu.cn/alpine/v3.7/community" >> /etc/apk/repositories RUN apk update RUN apk upgrade RUN apk add git

I am using generic code (from the iOS Fireworks demo) in a slightly changed way. I have the following in a subclass of UIView. What I want is to make the firework appear at the point the user touches (not hard) and play out for the length of the CAEmitterLayer/CAEmitterCells 'lifetime'. Instead, this is immediately starting when i add it to addSublayer -- like I am sure it is meant to. However, I would like to use it in a slightly different way. Is there a way that I can change this so there is a CATransaction with a completion block (to removeFromSuperlayer) or something like that? Any ideas

史上最全的音视频SDK包分享给大家 概述一下SDK功能： 项目 详情 视频通信 支持多种分辨率的视频通信 语音通信 提供语音通信，可支持高清宽带语音 动态创建房间 可以根据需要，随时创建房间 H5 支持H5方式的音视频通讯，无须安装插件 文字消息 支持以透明通道的方式传递文字消息 文件传输 支持以透明通道的方式传输文件 文件传输支持码率控制 支持设置限速，防止因为文件传输影响音视频通讯 拍照 可以抓拍指定摄像头的照片 互动白板 支持白板功能，会话的参与方可以在白板上进行标注 文档共享 支持分享PPT、WORD、EXCEL等常用文档 网盘 会话过程中的网盘，参与方可以自由上传和下载 影音共享 支持在会话过程中给其他参与方播放视频，可以用于风险播报场景 视频打点 录制时可以在关键点进行打点，回放质检时可以直接定位到打点的位置 服务器日志收集 所有客户端的日志可以通过配置统一搜集到服务器的指定目录，便于定位问题 外部音视频输入 用户可以自己采集音视频源作为系统的输入 集成外部Codec 支持集成用户需要的编解码算法 在线好友 可以得到其他用户的在线状态 视频呼叫 支持呼叫 智能码率调控 可以根据用户设定的码率调整策略以及当前使用者的网络状况进行码率的智能调控，保障音视频效果的流畅 分布式部署 各种后台服务可以支持分布式部署，负荷分担 本地合成录像 根据需求自由合成录像，可以包括多方的视频

Closed . This question needs to be more focused . It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post . Closed last year . So while developing a custom camera application I've realized on rare occasions and on various devices if the app has to force close, it does not always release the camera resource. Is there a way to find/detect the process that is holding onto this resource and kill it? Or some other technique? It is rather difficult bug to reproduce (for me anyway), but ultimately the device has

如果装的是64位系统，则要安装ia32-libs，运行32位程序。安装命令：sudo apt-get install ia32-libs（在Ubuntu中的命令） android update sdk #升级 android update sdk –no-ui #没有界面 #添加liggl.so，否则无法启动sdk sudo ln -s /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1.2 /usr/lib/libGL.so 来源： oschina 链接： https://my.oschina.net/u/927877/blog/205959

When I try to install the android SDK it fails to install. My OS is Windows XP I just downloaded and installed Java JDK 1.6 Java -version from the command line returns: https://stackoverflow.com/questions/ask java version "1.6.0_17" Java(TM) SE Runtime Environment (build 1.6.0_17-b04) Java HotSpot(TM) Client VM (build 14.3-b01, mixed mode, sharing) My environment vars have: JAVA_HOME=c:\progra~1\java\jdk1.6.0_11 I downloaded android-sdk-r04-windows.zip I unziped it in V:\AndroidInstall\ When I go to the V:\androindinstall\android-sdk-windows> and type "SDK Install.exe" nothing happens... If I

I would find useful, in some cases, and under the user's permission, to block the device so only the running application can be accessed unless the usrer's password (pattern or whatever is used to unlock the session) is introduced. I guess the mecanism should be something like: The application asks the os to do this, the OS asks the user for permission and then the application asks the device to block the application on "exit" or standby (or both). This would be useful for using an iPhone or iPad as a device for public use. One example could be a Library where visitors can see the book list

I have been having some trouble with the facebook SDK, specifically retrieving an access token. The App is set up on Facebook correctly and has been given permission. As far as I can tell, the code is correct and I am not sure what is going wrong with getAccessToken(). $facebook->getAccessToken(); is returning "12345678|abcdefghijklmnop" , basically some kind of variable which is made up of the App ID and Secret ID separated by a | $facebook->getUser(); is returning ' 0 ' <?php require_once("facebook.php"); //Up-to-date SDK files from Git $app_id = "12345678"; //replaced with fake $app_secret