大约有 42,000 项符合查询结果（耗时：0.0417秒） [XML]
What is the purpose of the “role” attribute in HTML?
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Most of the roles you see were defined as part of ARIA 1.0, and then later incorporated into HTML via supporting specs like HTML-AAM. Some of the new HTML5 elements (dialog, main, etc.) are even based on the original ARIA roles.
http://www.w3.org/TR/wai-aria/
There are a few prim...
Custom ImageView with drop shadow
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I believe this answer from UIFuel
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Drop Shadow Stack -->
<item>
<shape>
<padding android:top="1dp"...
Add floating point value to android resources/values
...s>
<item name="text_line_spacing" format="float" type="dimen">1.0</item>
</resources>
In this way, your float number will be under @dimen. Notice that you can use other "format" and/or "type" modifiers, where format stands for:
Format = enclosing data type:
float
boole...
Automating the InvokeRequired code pattern
... right click and select 'Surround With...' or Ctrl-K+S:
<?xml version="1.0" encoding="utf-8" ?>
<CodeSnippet Format="1.0.0" xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
<Header>
<Title>ThreadsafeInvoke</Title>
<Shortcut></Short...
Auto reloading python Flask app upon code changes
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A few updates for Flask 1.0 and above
the basic approach to hot re-loading is:
$ export FLASK_APP=my_application
$ export FLASK_ENV=development
$ flask run
you should use FLASK_ENV=development (not FLASK_DEBUG=1)
as a safety check, you can run ...
实战Nginx与PHP（FastCGI）的安装、配置与优化 - 更多技术 - 清泛网 - 专注...
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从www.php.net官方网站下载PHP源码包，这里下载的是稳定版php-5.2.13.tar.gz。
从http://php-fpm.org/downloads/下载对应的PHP-FPM源码包，这里下载的是php-5.2.13-fpm-0.5.13.diff.gz。
需要注意，在下载软件包版本时，尽量使PHP和PHP-FPM版本一致，...
JSON.NET Error Self referencing loop detected for type
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In .NET Core 1.0, you can set this as a global setting in your Startup.cs file:
using System.Buffers;
using Microsoft.AspNetCore.Mvc.Formatters;
using Newtonsoft.Json;
// beginning of Startup class
public void ConfigureServices(ISe...
How do I display an alert dialog on Android?
...sign. Here is a sample one I created for demo purposes:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
andro...
What are the best practices for using Assembly Attributes?
...anually change the values in all projects as a one-off:
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="UpdateAssemblyInfo" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<AllAssemblyInfoFiles Include=".....
How to capture UIView to UIImage without loss of quality on retina display
...t of the screen.
UIGraphicsBeginImageContext uses a fixed scale factor of 1.0, so you're actually getting exactly the same image on an iPhone 4 as on the other iPhones. I'll bet either the iPhone 4 is applying a filter when you implicitly scale it up or just your brain is picking up on it being les...