Qt documentation: Deploying on Mac. Qt offers a deployment tool for Mac: The Mac Deployment Tool. The Mac deployment tool can be found in QTDIR/bin/macdeployqt.It is designed to automate the process of creating a deployable application bundle that contains the Qt libraries as private frameworks. I just “finished”1 an app that runs on iOS and Android using Qt 5.6. It’s written mostly in C and QML. Yes, I’m skipping other platforms, like Windows Phone, Windows Desktop, Mac.
Icons are very important Icons create rhythm, lead the eye and give structure to every layout or application. Spectacular Icon Backgrounds With IconsFlow you are the designer! Just pick a background from the library and play with different styles.
Image Size and Resolution
The coordinate system iOS uses to place content onscreen is based on measurements in points, which map to pixels in the display. A standard-resolution display has a 1:1 pixel density (or @1x), where one pixel is equal to one point. High-resolution displays have a higher pixel density, offering a scale factor of 2.0 or 3.0 (referred to as @2x and @3x). As a result, high-resolution displays demand images with more pixels.
For example, suppose you have a standard resolution (@1x) image that's 100px × 100px. The @2x version of this image would be 200px × 200px, and the @3x version would be 300px × 300px.
Supply high-resolution images for all artwork in your app, for all devices your app supports. Depending on the device, you accomplish this by multiplying the number of pixels in each image by a specific scale factor.
Device | Scale Factor |
---|---|
12.9' iPad Pro | @2x |
11' iPad Pro | @2x |
10.5' iPad Pro | @2x |
9.7' iPad | @2x |
7.9' iPad mini 4 | @2x |
iPhone XS Max | @3x |
iPhone XS | @3x |
iPhone XR | @2x |
iPhone X | @3x |
iPhone 8 Plus | @3x |
iPhone 8 | @2x |
iPhone 7 Plus | @3x |
iPhone 7 | @2x |
iPhone 6s Plus | @3x |
iPhone 6s | @2x |
iPhone SE | @2x |
Qt Mac App Icon Shortcut
Designing High-Resolution Artwork
Use an 8px-by-8px grid. A grid keeps lines sharp and ensures that content is as crisp as possible at all sizes, requiring less retouching and sharpening. Snap the image boundaries to the grid to minimize half pixels and blurry details that can occur when scaling down.
Produce artwork in the appropriate format. In general, use de-interlaced PNG files for bitmap/raster artwork. PNG supports transparency and, because it's lossless, compression artifacts don't blur important details or alter colors. It's a good choice for intricate artwork that requires effects like shading, textures, and highlights. Use JPEG for photos. Its compression algorithm usually produces smaller sizes than lossless formats and artifacts are harder to discern in photos. Photo-realistic app icons, however, look best as PNGs. Use PDF for glyphs and other flat, vector artwork that requires high-resolution scaling.
Use the 8-bit color palette for PNG graphics that don’t require full 24-bit color. Using an 8-bit color palette reduces file size without reducing image quality. This palette is not appropriate for photos.
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Optimize JPEG files to find a balance between size and quality. Most JPEG files can be compressed without noticeable degradation of the resulting image. Even a small amount of compression can save significant disk space. Experiment with compression settings on each image to find the optimal value that yields an acceptable result.
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Provide alternative text labels for images and icons. Alternative text labels aren’t visible onscreen, but they let VoiceOver audibly describe what's onscreen, making navigation easier for people with visual impairments.
Two earlier blog posts (1) (2) covered how to set up Qt and Qt Creator on Windows and Linux systems. Let's look at installation on the remaining major desktop platform, macOS.
Thanks to the unified Qt installer, the process is very similar to that on Windows and Linux, so we'll just cover some of the differences and highlights of the Mac install.
Assumptions and Prerequisites
For this example we'll install Qt 5.7.1, which is supported on macOS version 10.8 and later.
The C++ compiler used by Qt on macOS is the Clang compiler, provided as part of the Xcode development tool. You will need to install Xcode from the Apple App Store. It is a free download, but you will need to have or create an Apple ID.
You can also use Qt and Qt Creator on macOS to develop for iOS (i.e. for iPhone, iPod Touch, and iPad devices), or for Android (or both). These use different downloads of Qt and have more prerequisites and won't be covered here.
Installation Steps
Qt Mac App Icon App
Download the Qt installer from http://download.qt.io. For Qt 5.7.1 you can navigate to official_releases / qt 5.7 / 5.7.1 and then download qt-opensource-mac-x64-clang-5.7.1.dmg. It is a reasonably large (1.2 GB) download.
Once it has downloaded, open the dmg file:
Qt Mac App Icon With Stop Sign
From the Qt Installer, follow the wizard screens in the same fashion as on Windows and Linux. Here were the screens I stepped through:
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Once done, you can launch Qt Creator:
You should check that it correctly set up at an auto-detected kit with the compiler, Qt version, and debugger:
This is a good time to create some sample projects to test your installation. Use the New Project Wizard and confirm that you can create the project, build it and run the application. Testing both widget and QML-based projects is recommended.
![Qt app icon Qt app icon](/uploads/1/3/4/2/134201371/968454445.jpg)
![Qt Mac App Icon Qt Mac App Icon](/uploads/1/3/4/2/134201371/369029912.jpg)
You are now ready for Qt software development on macOS. If you want to update, add or remove any components, you can run the maintenance tool, which will be found under the Qt install directory as MaintenanceTool.
Summary
It's easy to get Qt up and running using the installer. I'm not a regular macOS user so on the occasions where I need to build a Qt application for the Mac, I appreciate that I can use the familiar Qt Creator IDE to do most of my work rather than having to learn another IDE.
Better Window Management. You can also create Groups and Folder for better organization of your files, apps, and folders. How to add google app to mac dock. Compared to DockShelf, ActiveDock is easy to set up, maintain, and use on a regular basis.Salient Features.
References
- Getting Started with Qt and Qt Creator on Linux, ICS blog post, http://www.ics.com/blog/getting-started-qt-and-qt-creator-linux
- Getting Started with Qt and Qt Creator on Windows, ICS blog post, http://www.ics.com/blog/getting-started-qt-and-qt-creator-windows
- Qt for MacOS, Qt documentation web site, http://doc.qt.io/qt-5/osx.html
- Xcode 8, Apple Developer website, http://developer.apple.com/xcode