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中文网（自研/维护）拓展 · App Inventor 2 中文网
...网络状态，参数的值为以下字符串：WIFI、2G、3G、4G、未连接网络、未知网络
方法
GetNetworkState()
获取网络状态，返回值为以下字符串：WIFI、2G、3G、4G、未连接网络、未知网络
NotificationStyle
...
How does Google calculate my location on a desktop?
...and my wireless router has been identified (thanks to association to other wifis around me at that time) in a very accurate area in Switzerland. Now, my wifi moved to Tokyo, but the queried system still thinks the wifi router is in Switzerland, because either it has no information about the addition...
How do I connect to a specific Wi-Fi network in Android programmatically?
...
You need to create WifiConfiguration instance like this:
String networkSSID = "test";
String networkPass = "pass";
WifiConfiguration conf = new WifiConfiguration();
conf.SSID = "\"" + networkSSID + "\""; // Please note the quotes. String sh...
VSS使用指南 - 开源 & Github - 清泛网 - 专注IT技能提升
...主要放的是一些第三方包，如APACHE的、SUN的、关于数据库连接的等等。
Ptree工程：这个工程主要放的是公司自己开发的一些包，一般以工程为单位。如COMMON包；以及该工程的一些资源文件。
Project-doc工程：该工程下放的是公司...
How to programmatically turn off WiFi on Android device? [duplicate]
I need to turn off the WiFi a while after pressing the "Turn off the Screen" button. There is a need for this app for my tablet because sometimes I just forget to turn off the WiFi and this discharges the battery very fast. It lives 10x+ times less than I would without WiFi.
Is there any solution a...
Your build failed due to an error in the AAPT stage, not because of an...
...浏览器 - 使用 FireFox、Chrome 或 Safari（最新版本）互联网连接不是最佳的网络防火墙正在阻止 App Inventor
目标设备（例如智能手机）没有设置“允许来自未知来源的应用程序”安全权限集 - 转到设置/应用程序/未知来源APK 是为比...
Android 4.3 Bluetooth Low Energy unstable
...tt implementation.
I often see even on modern devices with Android 5, that Wifi interferes withs bluetooth and vice versa. As a last resort, turn off wifi to stabilize bluetooth.
Tutorial for beginners
A pretty OK entry point for newcomers could be this video tutorial: Developing Bluetooth Smart ...
How do I see if Wi-Fi is connected on Android?
...ivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (mWifi.isConnected()) {
// Do whatever
}
NOTE: It should be noted (for us n00bies here) that you need to add
<uses-permission android:name="andro...
30条爆笑的程序员梗 PHP是最好的语言 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...准备收你那个 10 秒时长，20 个字的笑话了。
抱歉，你的连接超时了。你好，你想听 TCP 的笑话么 。
30.问题
从前有个程序员遇到了一个问题。他想，没事，我懂，用线程就好了。现他有两个问题了。
原文：http://www.phpxs.com/pos...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...隔。
后台任务要尽可能少的唤醒CPU，譬如IM通信的长连接心跳时间间隔、一些应用的后台定时唤醒时间间隔等要设计合理。
特殊耗电业务情况可以进行弹窗等友好的交互设计提醒用户该操作会耗用过多电量。
可以看...