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Android: How can I get the current foreground activity (from a service)?
...ice Info
Put this in res/xml/accessibilityservice.xml:
<?xml version="1.0" encoding="utf-8"?>
<!-- These options MUST be specified here in order for the events to be received on first
start in Android 4.1.1 -->
<accessibility-service
xmlns:tools="http://schemas.android.com/tool...
How to detect iPhone 5 (widescreen devices)?
...y if the floating point value cannot be expressed as an exact number (like 1.0/3.0*3.0 for example). Read this article for more info ;)
– AliSoftware
Sep 16 '12 at 16:50
2
...
When do I use fabs and when is it sufficient to use std::abs?
...e of a template. Had to replace individually a thousand usages of 0.0L and 1.0L with the exact constant type using Zero or One or a type_cast - automatic conversion definition impossible because of ambiguities.
Up to May I found the existing of implicit conversions very nice.
But much simpler it wo...
Default function arguments in Rust
...l Default for FooArgs {
fn default() -> Self {
FooArgs { a: 1.0, b: 1 }
}
}
impl From<()> for FooArgs {
fn from(_: ()) -> Self {
Self::default()
}
}
impl From<f64> for FooArgs {
fn from(a: f64) -> Self {
Self {
a: a,
...
REST HTTP status codes for failed validation or invalid duplicate
...age itself you should modify the reason phrase, so sending the header HTTP/1.0 403 Form validation errors is the cleanest way to go.
– aleemb
Sep 3 '12 at 13:34
6
...
'parent.relativePath' points at my com.mycompany:MyProject instead of org.apache:apache - Why?
... A fat finger case on my part.
My pom parent had this:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/...
Difference between float and decimal data type
...ed in base-2. 0.1 can't, for instance, and so you see strange results like 1.0 - 0.1 = 0.8999999.
Decimals store base-10 numbers. Decimal is an good type for most business math (but any built-in "money" type is more appropriate for financial calculations), where the range of values exceeds that pro...
How do I print the type of a variable in Rust?
... println!("{}", type_of!(&mut &1));
println!("{}", type_of!(1.0));
println!("{}", type_of!("abc"));
println!("{}", type_of!(&"abc"));
println!("{}", type_of!(String::from("abc")));
println!("{}", type_of!(vec![1,2,3]));
println!("{}", <Result<String,i64&...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...分别是Alfred Aho、Brian Kernighan、Peter Weinberger。gawk是awk的GNU版本，它提供了Bell实验室和GNU的一些扩展。下面介绍的awk是以GUN的gawk为例的，在linux系统中已把awk链接到gawk，所以下面全部以awk进行介绍。
2. awk命令格式和选项
...
Declaring a custom android UI element using XML
... as follows:
1. Declare attributes in values\attrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="MyCustomView">
<attr name="android:text"/>
<attr name="android:textColor"/>
<attr name="extraI...