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How to launch an Activity from another Application in Android
...n isAppInstalled(Context context, String packageName) {
PackageManager pm = context.getPackageManager();
try {
pm.getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);
return true;
} catch (PackageManager.NameNotFoundException ignored) {
}
return false;
}
p...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...能，所以，也适用于Unix及BSD（如Mac OS）。
Linux
Linux默认安装就带了shell解释器。
Mac OS
Mac OS不仅带了sh、bash这两个最基础的解释器，还内置了ksh、csh、zsh等不常用的解释器。
Windows上的模拟器
windows出厂时没有内置shell解释器...
What does the number in parentheses shown after Unix command names in manpages mean?
...le sec‐
tions following a pre-defined order ("1 n l 8 3 2 3posix 3pm
3perl 5 4 9 6 7" by default, unless overridden by the SEC‐
TION directive in /etc/manpath.config), and to show only the
first page found, even if page exists in several sections.
The table ...
How can I get stock quotes using Google Finance API?
...astTradePrice": "129.09",
"Yield": "1.46",
"LastTradeTime": "4:04PM EST",
"LastTradeDateTimeLong": "Mar 2, 4:04PM EST",
"Dividend": "0.47",
"StockSymbol": "AAPL",
"ID": "22144"
}
]
Google finance is a source that provides real-time stock data. There are also other A...
“Rate This App”-link in Google Play store app on the phone
..._VIEW);
intent.setData(Uri.parse("market://search?q=foo"));
PackageManager pm = getPackageManager();
List<ResolveInfo> list = pm.queryIntentActivities(intent, 0);
If the list has at least one entry, the Market's there.
You can use the following to launch Android Market on your application's...
Alarm 闹钟扩展 · App Inventor 2 中文网
...钟时间，扩展的一个类在后台启动。对于小米设备，无论安装的Android版本如何，如果应用程序想在后台运行时启动另一个应用程序，都需要额外的权限。此权限无法通过程序设置，必须通过对话框由用户确认（参见 Android 10和小...
OpenSSH升级后不能登录的问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...check=0
enabled=1
更新缓存
yum clean
yum makecache
先安装telnet 以防止更新openssh的时候 终端断开。
yum install telnet
详细配置请看
http://jingyan.baidu.com/article/9f63fb91ac7ebcc8400f0e94.html
配置完成后 使用telnet 登录到服务器
...
How to format a JavaScript date
...s the time when you don't pass any options.
// Example
9/17/2016, 1:21:34 PM
References:
toLocaleString()
toLocaleDateString()
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Install Application programmatically on Android
...
The /asset/ directory only exist in your development machine, when the application is compiled to an APK, the /asset/ directory no longer exists since all the assets are zipped inside the APK. If you wish to install from your /asset/ directory, you'll need to extract that...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...，并且能够用mongodb的命令操作数据库。下面列出在linux下安装单节点mongodb的步骤
1、建立mongodb测试文件夹
#存放整个mongodb文件
mkdir -p /data/mongodbtest/single
#存放mongodb数据文件
mkdir -p /data/mongodbtest/single/data
#进入mongodb文件...