大约有 2,800 项符合查询结果(耗时:0.0111秒) [XML]

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Live-stream video from one android phone to another over WiFi

...sample code for the server: // this is your network socket ParcelFileDescriptor pfd = ParcelFileDescriptor.fromSocket(socket); mCamera = getCameraInstance(); mMediaRecorder = new MediaRecorder(); mCamera.unlock(); mMediaRecorder.setCamera(mCamera); mMediaRecorder.setAudioSource(MediaRecorder.AudioS...
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JPush 极光推送扩展 · App Inventor 2 中文网

...Received(message, extras) { // 处理自定义消息(透传消息,不显示通知栏) 标签2.Text = message } 获取设备注册 ID when JPush1.OnConnected(registrationId) { 标签_注册ID.Text = registrationId // 将此 ID 发送给你的服务器,用于...
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App Inventor 2 PopupMenu与列表选择器自定义教程 · App Inventor 2 中文网

..."📤", "text": "分享"} ] when 按钮_菜单.Click { // 使用ListView显示动态菜单 ListView_菜单.Elements = 菜单数据 水平布局_遮罩.Visible = true } when ListView_菜单.AfterPicking { var 选中索引 = ListView_菜单.SelectionIndex 关闭菜单() if 选中索引 =...
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Using ping in c#

...ply reply = pinger.Send(nameOrAddress); pingable = reply.Status == IPStatus.Success; } catch (PingException) { // Discard PingExceptions and return false; } finally { if (pinger != null) { pinger.Dispose(); } } retu...
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BLE(四)嗅探工具 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...行追踪,并能够配合Wireshark解析BLE数据包,可以很直观的显示出内部的层级关系和各字段含义。比较遗憾的是,实际使用发现它并没有CC2540 USB Dongle稳定,经常会抓不到后面数据通信的网络包,不过这一问题应该是可以通过优化...
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MQTT物联网协议完全实践指南 · App Inventor 2 中文网

...B[MQTT客户端] B --> C[数据处理模块] C --> D[图表显示] C --> E[报警系统] end subgraph "MQTT云平台" F[MQTT Broker] G[主题路由] H[消息持久化] end subgraph "温室设备" I[温湿度传感器] ...
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乐高 EV3 实验02 - 差速小车遥控 · App Inventor 2 中文网

... 1   EV3 大型马达 2 接 B、C 端口,装在车体两侧 轮子 + 万向轮 — 两个驱动轮 + 一个支撑点 这种结构叫差速驱动平台:两侧轮速不同就会转弯。 想要的动作 ...
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java.net.UnknownHostException: Invalid hostname for server: local

...hostname "localhost" instead, or perhaps 127.0.0.1 or ::1 (the last one is IPv6). From the javadocs: Thrown to indicate that the IP address of a host could not be determined. 127.0.0.1or ::1 or "localhost" should always be the loopback interface, so if that doesn't work I'd be really surpri...
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社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...监控”。 那一般网站会有什么限制呢? 一定时间内单IP访问次数,没有哪个人会在一段持续时间内过快访问,除非是随意的点着玩,持续时间也不会太长。可以采用大量不规则代理IP来模拟。 一定时间内单账号访问次数,这...
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Simplest way to detect a mobile device in PHP

... Here is a source: Detect Mobile Browser Download PHP script Code: <?php $useragent=$_SERVER['HTTP_USER_AGENT']; if(preg_match('/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|n...