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iOS UI系列 (二) ：使用多个StoryBoard - 更多技术 - 清泛网 - 专注C/C++及内核技术
...mg class=”img-responsive”src=”/assets/images/ios/UI/2/3.png” />
连接2个StoryBoard
打开Main.storyboard, 为SecondViewController上的按钮建立一个IBAction, 然后在SecondViewController.swift里添加如下代码
@IBAction func GotoSecondStoryBoard(sender: AnyObject) {
...
预编译头文件来自编译器的早期版本，或者预编译头为 C++ 而在 C 中使用它(...
...sp; 在“配置属性”---“连接器”---“常规”的“附件库目录”填上库所在的目录名，这个目录名最好是在工程文件夹中建一个专门放lib的文件夹。
APP INVENTOR硬件交互学习教程04——蓝牙控制继电器 - 创客硬件开发 - 清泛...
这节主要是设计一个APP，连接蓝牙模块，通过按钮控制继电器的打开和关闭。
一、硬件部分
二、板子程序
串口接收字符，并输出控制继电器
// 引脚定义
const int ledPin1 = 5;// the number of the LED pin
const int ledPin2 = &...
BLE &APP交互学习教程01——下发指令 - 创客硬件开发 - 清泛IT社区，为创新赋能！
BLE模块性价比高，无需配对就可以连接使用，从本节开始，我们着重来学习使用BLE控制和显示。
1.界面设计
2.逻辑设计
3.APP工程
4.下位机工程
{:8_381:}
How can I programmatically get the MAC address of an iphone
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}
}
Adapter names vary depending on the simulator/device as well as wifi or cell on the device.
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Android check internet connection [duplicate]
...
in manifest,
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
Edit:
This method actually checks if device is connected to internet(There is a possibility it's connected to a network but ...
Unable to resolve host “” No address associated with hostname
... back on. It worked fine in the office, but as soon as I was off familiar wifi, I was getting the error. Sometimes it's the stupid things :|
– Karmic Coder
Aug 31 '14 at 21:34
...
How to check for an active Internet connection on iOS or macOS?
...ility.whenReachable = { reachability in
if reachability.connection == .wifi {
print("Reachable via WiFi")
} else {
print("Reachable via Cellular")
}
}
reachability.whenUnreachable = { _ in
print("Not reachable")
}
do {
try reachability.startNotifier()
} catch {
...
Run/install/debug Android applications over Wi-Fi?
... Android Studio plugin created to quickly connect your Android device over WiFi to install, run and debug your applications without a USB connected. Press one button and forget about your USB cable.
just install plugin Android WiFi ADB
Download and install Android WiFi ADB directly from
Intellij ...
Broadcast receiver for checking internet connection in android app
...action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
Change in WiFi state:
<action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
Just use one:
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />.
It will respond to only one action instead of two. See he...