What size should an application icon and menu bar icon for OS X be?
I can deal with small resolution displays but what about Retina - does an icon displayed on the menu bar (e.g. 20 x 20 ) will be smaller or blurred on a new MacBook Pro with Retina display?
I reckon that the Application icon will be scaled, so if I'll prepare twice larger than regular it should be OK on Retina.
I found an excellent guide for iOS development with sizes specification but I can't find similar size specifications for OS X.
NSStatusBar icons (i.e. Menu bar icons) are different from regular app icons. I have not been able to find an NSStatusBar official icon guideline, but I have to believe that the Toolbar Icon guideline for buttons is pretty close. It suggests:
Create icons that measure no more than 19x19 pixels.
Make the outline sharp and clear.
Use a straight-on perspective.
Use black (add transparency only as necessary to suggest
dimensionality).
Use anti-aliasing.
Use the PDF format.
Make sure the
image is visually centered in the control (note that visually
centered might not be the same as mathematically centered).
In testing, I've found:
NSStatusBar seems to look best with something 18 pixels high, or less. The systemStatusBar has a thickness of 22.
While it lists PDF format, I've been using png without issue.
If you want your icon to be white on blue when it's selected, you need to provide the alternateImage as a separate white version of your icon.
Code sample:
myStatusItem = [[NSStatusBar systemStatusBar]statusItemWithLength:NSSquareStatusItemLength];
NSImage *statusImage = [NSImage imageNamed:#"Status.png"];
[myStatusItem setImage:statusImage];
NSImage *altStatusImage = [NSImage imageNamed:#"StatusHighlighted"];
[myStatusItem setAlternateImage:altStatusImage];
[myStatusItem setHighlightMode:YES];
[myStatusItem setMenu:self.myStatusMenu];
To make your menu item support Retina displays, Dark Mode and different states (e.g. pressed)
Create two PNG images sized 16x16 and 32x32 pixels
Create a new image asset in Xcode with Render As set to Template Image and add your images for 1x and 2x
Initialize your NSImage from the image asset without changing its size: NSImage(named: "Example")
http://developer.apple.com/library/mac/#documentation/userexperience/conceptual/applehiguidelines/Intro/Intro.html#//apple_ref/doc/uid/TP30000894-TP6
And:
http://developer.apple.com/library/mac/#documentation/userexperience/conceptual/applehiguidelines/IconsImages/IconsImages.html
Follow these steps and you will get a perfectly sharp status bar Icon for retina
Open a png file of your Icon in photoshop it should be larger than 88px x 88px
go to menu, Image, Image size
set resolution to 350
set size to 88px x 88px (pixels)
save image as png
add it xcode
adding on to Michael's answer apple are now requiring all the way up to 1024x1024px icons due to retina displays.
http://www.cultofmac.com/179738/apple-now-requires-high-res-1024x1024-icons-for-every-mac-os-x-app/
The maximum size for the app icon should be 1024 x 1024.
And you have to create both regular and retina resolution icons for 16 x 16, 32 x 32, 128 x 128, 256 x 256, 512 x 512 & 1024 x 1024.
The details for which you can find in the "High Resolution Guidelines for OS X" document from Apple.
Related
I'm working on a react native application in a company and my manager asked me what is the best image size in pexels to upload from API (dashboard) to fit the View in the application ?
And I'm using percentage units not numbers: (width: '80%', height: '50%') I don't know what is the best sized of images to fit or the aspect ratio of the image and react native is unitless!
What should we add 'Hint' for the client in the dashboard when he upload any image ?
Or how could I know the best image dimensions to fit all screens ?
In our organisation, we usually follow the following convensions to make an image fully responsive.
Get the dimentions of the image using: const {width, height} = Image.resolveAssetSource('path-to-your-image');
Get the ratio factor of width and height by using: const ratioFactor = height/width;
Whenever you set the width of your screen by 'n' digit, set the height to 'n*ratioFactor'
In this ways the image can never be stretched or compressed. It will be fully responsive according to it's dimensions.
Preferably use image with standard dimentions as 1024 x 768 pixels.
In case the app target both iOS and Android, there is a multitude of devices with various resolutions and pixel densities from high-end iPads to low-end androids devices with smaller resolutions.
The General rule of thumb is to find the average image size which will not pixelated (look blurry) on the high-end devices but does not have a large download size in case some users will have slow internet.
You should start with 1024 x 768 pixels which is a standard dimension for iPad
Consider using resizeMode prop of react native image. With resizeMode you can manage to render image based on available space in screen.
Check it here : https://reactnative.dev/docs/image#resizemode
Currently I am designing the UITabbar of my App. I created a Photoshop layout for the Tabbar, it is 84px high and 640px wide. Is it the right way to create one image with the size of 84x640 and one with the size 320x42. And then name the larger image #2x.png.
I am struggling at this point, because when I log the width of the UITabbar it says 320.00, but I am using the Iphone 3.5inch retina simulator.
Any tips for me to realize the tabbar?
Yes. You should have two images. One for normal displays and one for retina.
Xcode works with point, not pixels, so the width will always be 320.
In the case of retina display one point is 2x2 pixels and in normal mode it is 1x1.
by the way, I think the height for the tab bar should be 320x49 for normal and 640x98 for retina.
the retina image should have the same name as the normal one with the #2x at the end
Example:
normal: image.png
retina: image#2x.png
You confused "Points" with "Pixels". The Points are resolution independent. You can normally check your scale factor by calling contentScaleFactor on your UIView.
It should say 2.0 for retina, and 1.0 for non retina.
In my iPad app which is restricted to UIInterfaceOrientationLandscapeRight , i added splash image by named default-Landscape.png & default-Landscape#2x.png images but it is rendering in simulator but not in my iPad.
All file names are case-sensitive.
rename them to : Default-Landscape.png & Default-Landscape#2x.png
with capital "D"
in simulator it isnt case-sensitive but in device it is
hope it helps. happy coding :)
I assume you mean the Default image.
Go to the Target - Summery view and check the the image is set for "Launch Images" and that there is no error or warning (usually due to size issue, you will see a small yellow mark over the picture)
deleted the app from both device and simulator
Clean your product
and reinstall on device via xcode.
Assuming you still have a problem, try to open the original image in Photoshop and re-export it as PNG 24
Refer Automatic orientation support for iPhone and iPad apps By Apple
iPad-only applications:
Create a launch image for each supported orientation in the PNG format. Each launch image must be 1024 x 748 pixels (for landscape) or 768 x 1004 pixels (for portrait).
Default launch image files:
Default-PortraitUpsideDown.png - upside-down portrait version.
Default-LandscapeLeft.png - left-oriented landscape version.
Default-LandscapeRight.png - right-oriented landscape version.
Default-Portrait.png - generic portrait version.
Default-Landscape.png - generic landscape version.
Default.png - default portrait launch. Its usage is strongly discouraged, use more specific launch images instead.For iPad launch images, do not include the status bar region.
Create launch images of these sizes:
For portrait:
768 x 1004 pixels
1536 x 2008 pixels (high resolution)
For landscape:
1024 x 748 pixels
2048 x 1496 pixels (high resolution)
This happened to me with an Ionic 3 app. Eventually I discovered the image it was loading is Default#2x~universal~anyany.png
I am a bit confused on managing the different sized images with retina and non-retina displays.
I add a custom button in Storyboard and add some text and then add the backgroundimage, which is a vector done in Illustrator (Width: 630 / Height:130):
UIImage *img = [UIImage imageNamed:#"iPad1_orange_button.png"];
[myButton setBackgroundImage:img forState:UIControlStateNormal];
the button shows up:
...the button comes out very small.
I have another image with the #2x for retina but that comes out the same size.
My question is how to manage the sizes of the buttons in regards to image size. DO i need to set the size of the button manually?
Also, when i create a button in Illustrator with the same pixel size as the button i use in XCODE and export it as .png, add it to XCODE and drag it into Storyboard it comes out very large.
Just a quick clarification:
The storyboard dimensions are NOT in pixels.
An iPhone 4S has 640x960(x,y) # 326ppi. xCode dimensions are 320by460(x,y). Just take the numbers and convert em to get the appropriate pixel sizes.
IE: If you want a button that that is 100 wide and 100 tall in storyboard you'd to create an image 100*(640/320) px wide and 100*(960/460) px tall (I believe my math is right...).
Depending on what you're building for you'd need different images to cater to the different devices.
On another note, the term retina display doesn't designate a clear-cut standard of px by px. If I recall correctly it's a term Apple coined that basically means that a screen has enough px that the human eye (hence retina) would not be able to see the jaggies.
Similar to Intel's coining of the term Ultrabook; no REAL spec floor/ceiling just a marketing ploy.
Think of dimensions and what you would consider a pixel to be a "density independent pixel". You are always working in the original size when it comes to position and size but it is up to the operating system to handle the different resolutions for you. For now we have the original size and Retina which is X2 the density but this could change. You never need to manually change the resolution for the given device.
This is simple:
make the button frame the size of the normal res image
when you load the image with UIImage imageNamed: do it like this
UIImage *img = [UIImage imageNamed:#"iPad1_orange_button"];
*Note I removed the file extension (.png) - this instructs UIImage to select the resolution appropriate version, the regular or the #2x. iOS will show the 2x version of the image in the same frame size as the normal res image. Pretty simple.
I have a PNG picture which I should use in my iPhone application, but first of all, I have to give it the dimensions of an iPhone 4 retina screen. Does any one know what could it be its dimensions or how to do that?
The retina display on the iPhone 4 has the double amount of pixels than that of an older iPhone. So the complete size of an iPhone 4 screen in pixels is 640x960.
In photoshop you can quickly resize any image by changing the image size property from the Image menu. If you don't want to lose quality I suggest you start with all retina images and halve them for the non retina displays. Doing it the opposite way will decrease your quality.
If you want to use an image designed for the iPhone 4 retina display you'll want to have both pictures, one for the normal iPhone screen (320x480) and one for the retina images, in your resource's folder of your Xcode project. Use the same name for those images but append "#2x" at the end of the retina images.
So if you have a "background.png" it will become "background#2x.png" and iOS will be smart enough to use the correct image for the correct type of screen.
At 72 dpi, it should be 640px by 960px.
iPhone4 screen resolution is 960x640