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What is the difference between “px”, “dip”, “dp” and “sp”?
...endent pixel (dp) A virtual
pixel unit that you should use when defining UI layout, to express
layout dimensions or position in a density-independent way.
The density-independent pixel is equivalent to one physical pixel on a 160
dpi screen, which is the baseline density assumed by the syst...
What arguments are passed into AsyncTask?
...er AsyncTask or Thread. The call of the method execute must be done in the UI Thread.
The method onPostExecute is executed in the UI Thread (here you can call another AsyncTask!).
The input parameters of the task can be an Object array, this way you can put whatever objects and types you want.
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Interview questions: WPF Developer [closed]
...
Personally I would sit them down in front of a standard developer build machine and ask them to complete some task. No questions, just see what their code is like after a couple of hours (or more if the task is longer).
I have had a zero failure rate on making a hiring descision based on th...
How to handle Handler messages when activity/fragment is paused
...age is sent to the handler.
When the handler receives the message (on the UI thread) it displays a DialogFragment.
If the PausedHandler class was not being used an IllegalStateException would be shown if the home button was pressed after pressing the test button to launch the dialog.
public class...
社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...样的框架搭建起来基本可以解决大量的抓取需求了。通过界面可以管理资源、反监控规则、网页扣取规则、消息中间件状态、数据监控图表，并且可以通过后台调整资源分配并能动态更新保证抓取不断电。不过如果一个任务的处...
animating addClass/removeClass with jQuery
I am using jQuery and jQuery-ui and want to animate various attributes on various objects.
6 Answers
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How to detect when cancel is clicked on file input?
...nd also bad in that it only (as far as I've tested) works with onfocus (requiring a pretty limiting event blocking) you can achieve it with the following:
document.body.onfocus = function(){ /*rock it*/ }
What's nice about this, is that you can attach/detach it in time with the file event, and it...
Further understanding setRetainInstance(true)
...RetainInstance(). From the page about fragments
Note: Each fragment requires a unique identifier that the system can
use to restore the fragment if the activity is restarted (and which
you can use to capture the fragment to perform transactions, such as
remove it). There are three ways to ...
Source unreachable when using the NuGet Package Manager Console
...one we already have in source control. There is no way to do this from the UI so I use the command line to get the proper version.
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Async/await vs BackgroundWorker
..., it comes down to personal preference as to which you use when. What is quicker for you? What is easier for you to understand?
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