After adding an app to itunes Connect. When adding a screenshot, uploading the photo according to the required size was successful, but at the time of saving it prompted "failed to create a screen shot of screenshots for 4-inch IPhone5 and IPod Touch (5th Generation) Retina display." ](Image from Network)In fact, the save failed, the picture is not qualified. But exclude 1. size 2. Picture Format Jpeg/pngTh
Problem:Today, when using Create-react-app to build the react application, I opened two react apps, and then NPM start, it appeared something is already running on Port 3000WorkaroundI have encountered this problem before, but did not record, I try to think, first NPM start port=3001, the result is still wrong.The correct way to open it should be port=3001 NPM start (this port is as good as 3000).Sum up, le
This article focuses on the method of creating the first application for node. js, as well as the introduction of five different scenarios. So that everyone can learn something, learn this, and then let's come and see this article.
First, let's try to create the first application:
Before we create the first "Hello, world!" app for node. JS, let's start by unders
Create a Material Design-style Android app-define the shadow and cropping view, materialandroid
I have previously written about using the topic and ListView, CardView, and Material Design Styles. Both of them can be backward compatible through the support library. The shadow and view cropping to be written today are not backward compatible. Please note.
Material Design introduces the depth element to the us
Create a Material Design-style Android app-use Drawable and androiddrawable
The following Drawables functions help you implement Material Design in applications:Image resource coloring
In android 5.0 (api 21) and later versions, bitmap and. 9 png can be colored by defining transparency. You can use color resources or topic attributes to parse color resources (for example,?android:attr/colorPrimary). We usua
SaveEvent:EventSpan:ekspanthisevent Error:saveerror]) {NSLog (@ "Saved an event that fires, seconds from now."); }Else{NSLog (@ "Failed to save the event Error is%@", Saveerror); }}Let us explain the meaning of the above method:First set the start and end time of the event.Then associate the events and calendars. Next, create a reminder object, Ekalarm, and set its start time to the first 7 seconds relative to the start time of the event.Use the Adda
vs when creating a Win32 Desktop app project, there are a number of issues that the default option is that you cannot compile other C + + files, even if you created it yourself, where the option is logged.1. Installation: Since it is a WIN32 application, do not choose to install MFC, in order to have nothing to do with it.2. Processor target options: In the project properties, there are two target options, Win32 corresponds to X86 instruction set, 32-
To the users of the illustrator software for detailed analysis and sharing to draw a texture app icon tutorial.
Tutorial Sharing:
In AI software, create a new 800*800 document, select the Rectangle tool, hold down shift to draw a square, and fill the color as shown
Then select the square to effect-stylized-rounded corners, as shown in the figure
Then select the rounded shape to
1. Create an app, icon, and Launch Images
1.1 icon size requirements
Icon requirements: Two images in the format of * 57 png are prepared for small-resolution mobile phones.
The format of * 114png is available for iPhone 5, iPhone 4, and iPhone 4S.
1.2 Launch Images
Three Images
Usd×0000480 for older mobile phones
2: 640*960 for iphone 4 and iphone 4S
3: 640 RMB x 1136 prepared for iPhone 5
Project
config info from/usr/local/ssl/openssl. cnf: This is the default setting for Unix. Create the file [c:/usr/local/ssl] and download openssl from the Internet. conf, and then change to open Ssl. place cnf in the c:/usr/local/ssl directory. 3) copy the downloaded cer file to the bin folder, and then run the following command line to generate a pem file, run the following command: openssl x509-in ios_development.cer-inform DER-out developer_identity.pem-
"Create-react-app Invalid Host Header"1. When you enable the ' Proxy ' option, you opt-in to a more strict set of host checks. This was necessary because leaving the backend open to remote hosts makes your computer vulnerable to DNS rebinding attacks .You'll see this error in the browser after enabling the ' Proxy ' option:>invalid Host Header 2, to work around it, you can specify your public development Ho
Apple has unveiled new photo apps in OS X 10.10.3, creating a separate gallery is one of the best ways to manage pictures in photo applications. Putting photos of different scenes in different galleries helps with day-to-day management, such as work and privacy.
The photo app provides us with a simple way to create a new gallery, and it's very easy to switch between those galleries.
The following step
A simple and static viewThe views file reads:From django.http import httpresponsedef Hello (Request): return HttpResponse ("Hello World")The home directory in the URLs file is written from the Start.views import Hello, used to import start this app folder in the Views view file in the Hello methodthen expand Urlpatterns as follows: Note that the URL matches and the imported module names are used here.urlpatterns = [url (r ' ^admin/', admin.site.url
How to create tokens for communications between the app and the background, how to make them dynamically change while matching success, and how to make them dynamically change while matching success, it is the background communication between my App and Laravel framework, but I don't know how to make the key token for that communication.
Reply
; exit ()
Using PIP to install packages
Python has its own package management, similar to Yum and Apt-get. You will need it to download, install, and uninstall the package.
[Leo@linux-vps] pip3.4 Install "PackageName" [Leo@linux-vps] pip3.4 List[leo@linux-vps] pip3.4 Uninstall " PackageName "
Python Virtual Environment
In Python, a virtual environment is a directory of dependent environments where your project is placed. This is a good way to isolate projects with different dependent environm
remote source.Let's get the default and icloud sources separately, as we've analyzed above:sourcesourcesourceTitle:@"iCloud"sourcesourcesourceTitle:@"Default"];Three. Get the specified calendar from the calendar sourceNow that we've got a calendar source, how do we get one of those calendars? The calendar in Eventkit is represented as an instance of Ekcalendar, and we also write a helper method:type:(EKCalendarType)typeinSource:(EKSource*)sourceforEventType:(EKEntityType)eventType{ forin [so
An error was found:A module.js:545 error has occurred. Looking for a long time always thought of npm problem. Re-installed a few times or not.Then switch the download Taobao NPM image, set the method is: NPM config set registry https://registry.npm.taobao.org, after the setup is complete, re-execute Create-react-app first-app. actually succeeded.It turns out that
1. Create an android project. In the menu, choose File> New> Android project.
2. The items displayed in the pop-up dialog box are as follows:"Project name:". Enter the project name here;"Build target:", select the build target of the new Android project. In this article, there are two options: "android2.1-update1" and "Google APIs ", the former indicates that the target environment is android2.1, and the latter indicates that Google map API is add
Write the first Django app, part one--Create a project
Let's learn by example.
Through this guided tour, we will teach you step-by-step to create a simple voting system.
The system is divided into two parts:
1. A public page that allows people to vote and view the results of a poll.
2. An admin page lets you add, modify, and delete votes.
We assume that you
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