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Answer : Try this: python3 -m pip install PyQt5 You need to upgrade your pip pip install --user --upgrade pip Then do a fresh install pip install PyQt5 or pip3 install PyQt5

Example 1: css hover animation .YOURHTMLCONTENT i { height : auto ; float : left ; color : #fff ; font-size : 55 px ; margin : 30 px 30 px 30 px 30 px ; transition : 0.8 s ; transition-property : color , transform ; } .YOURHTMLCONTENT i :hover { color : #FF5733 ; transform : scale ( 1.3 ) ; } Example 2: css hover animation a :hover { color : #252525 ; }

Example: recursion data structure int function ( int value ) { if ( value < 1 ) return ; function ( value - 1 ) ; printf ( "%d " , value ) ; }

Answer : Bubble sorter, which I adapt from my modification to David's answer to my question at Trying to eliminate stack overflow during recursion. The \sortlist macro is the bubble sorter (from the referenced answer, but with and rather than , as the list seperator). However, it leaves the result in the form of Last Name, First and ... . I had to add the \rework macro to make it First Last Name and employ \whichsep to choose whether a , or and should be inserted between names, depending on their placement in the list. No packages required! \documentclass[10pt]{article} \newcommand\alphabubblesort[1]{\def\sortedlist{}% \expandafter\sortlist#1 and \cr and \relax \expandafter\rework\sortedlist and \relax} \def\sortlist#1and #2and #3\relax{% \let\next\relax \ifx\cr#2\relax% \edef\sortedlist{\sortedlist#1}% \else \picknext#1!and #2!\relax% \if F\flipflop% \edef\sortedlist{\sortedlist#1and }% \def\next{\sortlist#2and #3\relax}% \else

Answer : Cause: For 5.0 Lollipop "Notification icons must be entirely white". If we solve the white icon problem by setting target SDK to 20, our app will not target Android Lollipop, which means that we cannot use Lollipop-specific features. Solution for target Sdk 21 If you want to support Lollipop Material Icons then make transparent icons for Lollipop and the above version. Please refer following: https://design.google.com/icons/ Please look at http://developer.android.com/design/style/iconography.html, and we'll see that the white style is how notifications are meant to be displayed in Android Lollipop. In Lollipop, Google also suggests that we use a color that will be displayed behind the white notification icon. Refer Link: https://developer.android.com/about/versions/android-5.0-changes.html Wherever we want to add Colors https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setColor(int) Implementation of Noti

Example 1: c hello world # include <stdio.h> int main ( ) { printf ( "Hello, world!" ) ; return 0 ; } Example 2: hello word c # include <stdio.h> int main ( ) { // printf() displays the string inside quotation printf ( "Hello, World!" ) ; return 0 ; }

Example 1: std cout c++ # include <iostream> using std :: cout ; int main ( ) { cout << "Hello world" ; return 0 ; } Example 2: std::cout and cout //c++ cout and std :: cout both are same , but the only difference is that if we use cout , namespace std must be used in the program or if you are not using std namespace then you should use std :: cout .

Answer : You can easily achieve this using INTERFACE MainActivity.java public class MainActivity extends Activity { public FragmentRefreshListener getFragmentRefreshListener() { return fragmentRefreshListener; } public void setFragmentRefreshListener(FragmentRefreshListener fragmentRefreshListener) { this.fragmentRefreshListener = fragmentRefreshListener; } private FragmentRefreshListener fragmentRefreshListener; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button b = (Button)findViewById(R.id.btnRefreshFragment); b.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(getFragmentRefreshListener()!=null){ getFragmentRefreshListener().onRefresh(); } } }); } publi

Answer : Yes, it can't be done like that. That "file-browser-type interface" is provided by a built-in plugin called netrw. It is read-only so yeah, you can't modify it. You are supposed to hit R to rename the file under the cursor or the marked files. See :help netrw , :help netrw-browse-maps and more specifically :help netrw-R . If you want to batch-rename files using Vim you should try qmv from the renameutils package or vidir from the moreutils package (thanks to Dmitry for the heads up). Check out the renamer.vim - Use the power of vim to rename groups of files plugin (now purely maintained on GitHub). Like netrw , it presents the directory contents in a scratch buffer, and then lets you edit that buffer, and finally apply the edits to the underlying files.

Example: #333 color < div > style="background-color:#0000FF">Background Color </ div > "

Example 1: css align items vertical center .parent { display : flex ; justify-content : center ; align-items : center ; } Example 2: css center /* this will center all children within the parent element. */ .parent { display : flex ; justify-content : center ; /* horizontal */ align-items : center ; /* vertical */ } Example 3: how to align elements horizontally in css .row { width : 100 % ; display : flex ; flex-direction : row ; justify-content : center ; } .block { width : 100 px ; } Example 4: how to align items in css div { display : flex ; align-items : center ; justify-content : center ; } Example 5: css center div vertically /* center vertically */ /* No Flexbox */ .parent { position : relative ; } .child { position : absolute ; top : 50 % ; transform : translateY ( -50 % ) ; } /* With Flexbox */ .parent { display : flex ; flex-direction : column ; justify-content : center ; } Example 6: how to align eleme

Example 1: css transition all -webkit-transition : all .3 s ease-in-out ; -moz-transition : all .3 s ease-in-out ; -o-transition : all .3 s ease-in-out ; -ms-transition : all .3 s ease-in-out ; transition : all .3 s ease-in-out ; Example 2: css hover animation .YOURHTMLCONTENT i { height : auto ; float : left ; color : #fff ; font-size : 55 px ; margin : 30 px 30 px 30 px 30 px ; transition : 0.8 s ; transition-property : color , transform ; } .YOURHTMLCONTENT i :hover { color : #FF5733 ; transform : scale ( 1.3 ) ; } Example 3: css transition on hover /* Simple CSS color transition effect on selector */ div { color : white ; background-color : black ; } div :hover { background-color : red ; } /* Additional transition effects on selector */ div { background-color : black ; color : white ; height : 100 px ; transition : width 1.5 s , height 3 s ; width : 100 px ;

Answer : Update December 2019: ASP.NET Core 3.0 supports an easy way to implement background tasks using Microsoft.NET.Sdk.Worker. It's excellent and works really well. As @axelheer mentioned IHostedService is the way to go in .NET Core 2.0 and above. I needed a lightweight like for like ASP.NET Core replacement for HostingEnvironment.QueueBackgroundWorkItem, so I wrote DalSoft.Hosting.BackgroundQueue which uses.NET Core's 2.0 IHostedService. PM> Install-Package DalSoft.Hosting.BackgroundQueue In your ASP.NET Core Startup.cs: public void ConfigureServices(IServiceCollection services) { services.AddBackgroundQueue(onException:exception => { }); } To queue a background Task just add BackgroundQueue to your controller's constructor and call Enqueue . public EmailController(BackgroundQueue backgroundQueue) { _backgroundQueue = backgroundQueue; } [HttpPost, Route("/")] public IActionResult SendEmail([FromBody]emailRequest) {

Example: dev c++ Dev - C ++ use an old version of c ++ , you should use CodeBlock download link : http : //www.codeblocks.org/downloads

Answer : You can find something about this in the Adobe Developer FAQ. (It's a PDF document rather than a web page, which I guess is unsurprising in this particular case.) The FAQ notes that the use of the command line switches is unsupported. To open a file it's: AcroRd32.exe <filename> The following switches are available: /n - Launch a new instance of Reader even if one is already open /s - Don't show the splash screen /o - Don't show the open file dialog /h - Open as a minimized window /p <filename> - Open and go straight to the print dialog /t <filename> <printername> <drivername> <portname> - Print the file the specified printer. I found this: http://www.robvanderwoude.com/commandlineswitches.php#Acrobat Open a PDF file with navigation pane active, zoom out to 50%, and search for and highlight the word "batch": AcroRd32.exe /A "zoom=50&navpanes=1=OpenActions&search=batch&q