About a week ago xcode showed me some error and when I clicked to solve the problem, xcode added this picture:
My questions are: What is it good for? Why do I need it?
Thank you.
Yes you must include one.
From Apple's Interface Guidelines
To enhance the user’s experience at app launch, you must provide at least one launch image. A launch image looks very similar to the first screen your app displays. iOS displays this image instantly when the user starts your app and until the app is fully ready to use. As soon as your app is ready for use, your app displays its first screen, replacing the launch placeholder image.
Without this default image (or a LaunchScreen storyboard), your app would not take all the available screen space on iPhones with 4" displays (iPhone 5, 5s, SE). This is the default image that those iPhones would use.
Of course you can (should!) change it with the one you designed.
Runtime, leading to the top and bottom of applications were empty out a lot , because the application is based on a 320x480 size to run.
Related
It has been a while since I created my last app and I missed the change with the launch file (since titanium 5.2.0).
I want my app to have a custom splashscreen (full screen image). In the past I used the various png files for the splashscreens Default.png, Default#2x.png etc.
I'm testing with the launch file and the custom Storyboard. At the moment it's not clear to me how I can achieve the behavior i want: A full screen image in the splash screen.
What is the best approach?
Thanks for the help.
Go to http://docs.appcelerator.com/platform/latest/#!/guide/Icons_and_Splash_Screens-section-29004897_IconsandSplashScreens-iOSgraphicassetrequirementsandoptions and take a look at the Purpose column. You'll see 9 splash screen sizes. You have to make each of them and put them in app/assets/iphone. Note that you have to name them exactly as told in the table.
This worked for me, Ti-5.4.0 tested on iPhone 7, iPad Air, iPhone 4S and iPhone 6S Plus.
Since version 5.2 storyboards were introduced. You can use them or you can disable it and use the "old" method to implement splashscreens.
To disable it, add this to tiapp: (of course, within the existing ios section in tiapp
<ios>
<enable-launch-screen-storyboard>false</enable-launch-screen-storyboard>
</ios>
To use it, look at the documentation how to implement it correctly.
I have my problem still unsolved Splash screen is landscape although the whole game is in the portrait mode. SpriteBuilder + cocos2d , so I see only one way.
How to remove splash screen at all, so that game loads at once ?
This is not possible. An image named Default.png (or under a similar name, depending on the device and what the app supplied) is always loaded when an app launches.
This is done by iOS specifically because no app can technically launch instantly (as in: within a tenth of a second or two).
I know the question is old, but I had the same problem and I solved it specifying none in "Launch screen file" (under General settings).
So I'm doing the Ray Wenderlich tutorials on iOS, and I'm doing the button tutorial. When I run the app, I get something that looks like this:
I have two questions:
I often see simulators show up in the form of an actual iPhone and was wondering if that was possible, or if that rectangle is the only way to view it?
The reason I'm asking is when I connected the button to an action (It says 'Pressed!'). So, is it supposed to show up in the box (bottom right) only, or should it should up on the simulator itself- mimicking what the user would see on-screen?
Regarding your first question: Probably a problem with screen size. See also here How can I restore the iPad frame around iOS Simulator 5.1?
The output seen in the screenshot is produced with NSLog and won't be seen on the device. You need to add an UILabel or such and set its text.
In the Simulator menu, try selecting Window then Scale and go to 50%. The retina models are far too big on my screen. Also, the old iOS 6 simulator with standard iPhone did look like a real phone, so examples from a while ago will look different.
If you want to support iOS 6.x, you can load it into Xcode. From Xcode main menu, select Xcode and then Preferences, and go to the Downloads tab.
Does anyone know if there is a way to force an app you're developing to run in a 3.5" screen size mode if you're on an iPhone 5, just for dev/debug purposes? Something such as what might look like a toggle in the Development section of Settings or something. In other words, run the app such that it LOOKS like it's running on a non-5 iPhone (black bars on top/bottom), that way I can test certain UI functions.
For clarification, I'm NOT saying "I don't want to support iPhone 5" - I most certainly do. Also, I'm aware that I can do the 'old' retina display in the simulator, but I do not want to use the iOS Simulator as the app includes libraries that do not support i386 architecture, uses push notifications, and heavily relies on GPS to function correctly. I'm just looking for a way to test both aspect ratios on the same device to save money/time.
Thank you!
It appears that by removing the app from device, deleting the Default-568h#2x.png launch image, cleaning the project, and re-running app, I can get the functionality I'm looking for, although not as nicely as a toggle switch.
Letter box in iPhone5
As suggested by Apple I have provided a launch image which equals to my home page iOS app.
At the moment I am testing on the iPhone simulator and I wanted to know if the same happens on real devices.
Everything works fine, however when I am in pages other than home page and I exit from application by pressing the button, then when I enter again, the launch images shows for an instant, and then suddenly the last viewed pages appears.
I wonder how can I avoid this "flickering" of pages. I don't know if this is important, but I am using Storyboards.
This is the intended behaviour if you immediately start the app again. See my answer to another Stack Overflow question on a similar matter.
To explain, the Default.png image is used when the OS is unable to take a screen shot of your last view state. Giving the OS a little longer to screen shot the app will prevent the Default.png being used. This is done so that the device does not just show a black screen, followed by your app popping in.
I am not aware of functionality to see if the OS has finished taking a screen shot. If this was possible you could place a UIImageView on top of your last view and do a more subtle fade out one you have control again.