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StatusbarTools 扩展 - 状态栏自定义工具 · App Inventor 2 中文网
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StatusbarTools扩展: com.SalmanDev.StatusBarTools.aix
功能概述
StatusbarTools扩展提供以下核心功能：
状态栏背景颜色自定义
状态栏背景透明度设置
状态栏图标颜色切换（深色/浅色）
全屏模式支...
How to convert a string to number in TypeScript?
...rrect typing and will correctly parse simple decimal integer strings like "123", but will behave differently for various other, possibly expected, cases (like "123.45") and corner cases (like null).
Table taken from this answer
...
Refreshing OAuth token using Retrofit without modifying all calls
...al accessTokenWrapper: AccessTokenWrapper) : Authenticator {
override fun authenticate(route: Route, response: Response): Request? {
val newAccessToken = noneAuthAPI.refreshToken(accessTokenWrapper.getAccessToken()!!.refreshToken).blockingGet()
accessTokenWrapper.saveAccessToken...
Why is Multiple Inheritance not allowed in Java or C#?
...omplexity to the languages while providing too little benefit.
For a more fun and in-depth read, there are some articles available on the web with interviews of some of the language designers. For example, for .NET, Chris Brumme (who worked at MS on the CLR) has explained the reasons why they decid...
Getting current device language in iOS?
...ode] else {
continue
}
// ex: es_MX.lproj, zh_CN.lproj
if let countryCode: String = languageComponents[NSLocaleCountryCode] {
if systemBundle.pathForResource("\(languageCode)_\(countryCode)", ofType: "lproj") != nil {
// returns langua...
Which is faster in Python: x**.5 or math.sqrt(x)?
... (Python 2.5.2, Windows):
$ python -mtimeit -s"from math import sqrt; x = 123" "x**.5"
1000000 loops, best of 3: 0.445 usec per loop
$ python -mtimeit -s"from math import sqrt; x = 123" "sqrt(x)"
1000000 loops, best of 3: 0.574 usec per loop
$ python -mtimeit -s"import math; x = 123" "math.sqrt(x...
How to represent multiple conditions in a shell if statement?
...
Classic technique (escape metacharacters):
if [ \( "$g" -eq 1 -a "$c" = "123" \) -o \( "$g" -eq 2 -a "$c" = "456" \) ]
then echo abc
else echo efg
fi
I've enclosed the references to $g in double quotes; that's good practice, in general. Strictly, the parentheses aren't needed because the preced...
php中json_decode()和json_encode()的使用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...d"] => int(4)
["e"] => int(5)
}
$data='[
{"Name":"a1","Number":"123","Contno":"000","QQNo":""},
{"Name":"a1","Number":"123","Contno":"000","QQNo":""},
{"Name":"a1","Number":"123","Contno":"000","QQNo":""}
]';
echo json_decode($data);
结果为：
Array ( [0] => stdClass Object ( ...
How do I split a string, breaking at a particular character?
...h JavaScript’s String.prototype.split function:
var input = 'john smith~123 Street~Apt 4~New York~NY~12345';
var fields = input.split('~');
var name = fields[0];
var street = fields[1];
// etc.
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AsyncProcedures异步过程扩展 · App Inventor 2 中文网
...和安装
AsyncProcedures扩展: co.sgext_.asyncprocedure.aix
开发动机
Async Proc是一个扩展，您可以使用它来异步运行过程。您不再需要等待循环完成，也不必担心由于Android系统认为您的应用程序无响应而导致...