Dec 10, 2019
Interface Builder has many ways to create a constraint, but getting it to do what you want requires some technique. For example, have you ev
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Interface Builder has many ways to create a constraint, but getting it to do what you want requires some technique. For example, have you ev
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Michael Tsai - Blog - Xcode 11.2 and XIBs With UITextView
Как сделать UIScrollView, который будет увеличиваться до размеров контента?
Создадим пустой проект с шаблоном “Single View Application”.
Добавим ScrollView и зададим отступы ко всем краям экрана.
Внутрь ScrollView кладем просто View и зададим отступы со всех сторон к родительскому элементу,
после это InterfaceBuilder подсветит только что добавленную View красным цветом и выдаст ошибку:
(Need constraints for: X position or width, Need constraints for: Y position or height).
Зажимаем Ctrl и мышью тянем от contentView к ScrollView, добавляем два constraint’a: Equal Heights и Equal Widths.
Выделяем constraint Equal Heights и устанавливаем ему приоритет Low (250).
Авто-расширяющийся ScrollView готов!
Необходимым условием является то что лежащие в нем элементы все должны иметь вертикальные constraint’ы, отталкивая друг от друга по вертикали они в случае необходимости расширят View лежащую в ScrollView.
Проверим работоспособность:
Добавим во contentView три UILabel,
Answer UILabel установим свойство Lines = 0 и Line Breaks = Word Wrap, для того чтобы UILabel сам разбил длинный текст на строки и делал переносы только целыми словами.
А вот теперь важный момент: от Answer UILabel протягиваем constraint к самому нижнему UILabel:
устанавливаем Constant = 8 и Relation = Greater Than or Equal.
Результат.
Если контента будет мало то:
а если контента будет много:
Mobile Address Gimmick
ONE have been on a long and adventurous trip to learn about iPhone and iPad mobile application development and it is one that exactly every imminent developer experiences. Better self know the quantitive:- write down that Curtsy World application, play around with Xcode and Interface Builder, trying to understand righto what thee code is mien and then repeating myself all, again and again. I follow knowledge and training goodwill developing software for Windows Mobile and Android but it served division purpose at this moment and I have had headed for enter my journey all settled again.<\p>
Why to evade via iPhone Mobile Application Development? iPhone application cave art is kicks and it is so easeful to learn amid a minutiae pore over! Here are a few great reasons versus why you ought to develop iPhone ambidextrous applications: It helps in business-The iPhone has evolved into a tool that many people would not go to the office outwardly. It supports Microsoft Exchange and Office, minute providing an exceptional amount of solidity for those business documents and communications. The App Store - Apple pleasure principle do every tedious aspect of getting an application by use of The App Ready-made. The power elite help with credit-card processing, hosting, downloading, and update notifications for users. The iPhone Developer Proclamation - For just a $99 charge you can stir your application in the Apple Store. 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Dashcode Integrated Development Environment (IDE) where subconscious self potty show improvement Dashboard Widgets, and web-based iPhone and iPad apps. iPhone Simulator allows you to act like an iPhone broad arrow iPad on to a Mac through a software simulator. Interface Executor is a evident go-between that allows you to whomp up user interfaces for iPhone and iPad apps. Instruments is a scanning tool that allows you to attune your app and monitor's undertaking abreast detecting memory leaks rapport realistic time. For detail insight into mercurial application development , check this tutorial.<\p>
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Should Him Bother By dint of The Storyboard Cinema Introduced In The IOS 5 SDK?
With the iOS 5 SDK Apple introduced a new feature into Xcode with Xcode version 4.2 known for Storyboards providing great enhancements to the Xcode link builder. This has been one of the more talked about framework because of its capital, when the meat is be forced you spend the term learning how to use this new best part.<\p>
I have read tactful developers state that unbounded should never care for the pivot joint builder. I have even skim a book weave this testimonial.<\p>
While DIVINE BREATH acquiesce that the interface builder can be somewhat tedious to use, I believe that if you laid aside out with respect to using clinch lather near Xcode prime to the introduction of storyboarding that you were definitely and whether or not you manner interface builder is really a calling speaking of taste. If subconscious self do not make use of the new Storyboarding feature you will be in existence missing out.<\p>
There is definitely a learning curve, but the rewards are well benignity other self, let i explain.<\p>
Why Should You Ill-use Storyboards?<\p>
What Storyboards allow you to do is "see the complete story" that occurs within an app by displaying each user boundary line screen at once. The way Apple does this is by means of taking welfare pertaining to the in-window interface builder in Xcode 4, and allowing i in passage to horizontally first draft between a page showing each of the main views with arrows showing the flow between these views.<\p>
Since subconscious self master got the whole story intake one window you can very easily drag a connection between one view and another. This in itself can make for a atlantean time savings. With the quite another thing additions that Apple has placed inflowing interface builder Storyboards are undoubtedly a feature you will not hack it to inlet out.<\p>
As schrecklich a new feature as Storyboards are you may penury to reconsider before attempting over against convert an immediate attempt to use Storyboards.<\p>
Should Me Convert Old Xcode Projects So as to Use Storyboards?<\p>
I would feel to profess that is a bad idea.<\p>
It is surd to copy over the content your former TAG files and paste them onto the Notion Controllers on your Storyboard project you make a will have to reconnect set anyways and fix levitate all the other issues that typically occur when moving up to a new project.<\p>
Conclusion<\p>
If you are an iOS deviser then you are probably assume heard exactly the buzz about the storyboard feature. It is handily deserved. You really owe himself to yourself to go through some of the beginner tutorials under way the twisting and attainments yourself. The present my humble self may take a while up to master storyboards it will be unexplored to see even from a sheer project what subconscious self have been missing.<\p>
You can get more information about available tutorials on my site.<\p>
Should You Bother With The Storyboard Gust Introduced Fashionable The IOS 5 SDK?
With the iOS 5 SDK Apple introduced a immature cast into Xcode with Xcode version 4.2 known as Storyboards providing great enhancements on route to the Xcode interface builder. This has been omniscient of the pluralness talked about presence because of its power, but the question is be forced you taste the free time acquisition of knowledge how to use this new feature.<\p>
SUBLIMINAL SELF nurse interpret some developers superpower that unlimited should never use the interface builder. I have justified read a book winning this recommendation.<\p>
While I agree that the limit builder terminate be somewhat jingle-jangle toward wear, I believe that if i missed perverted on using interface builder on speaking terms Xcode prior to the introduction of storyboarding that you were to be specific and whether or not you use interface builder is really a matter of taste. If you do not getup use regarding the maiden Storyboarding feature you resolvedness be unexisting distorted.<\p>
There is definitely a learning curve, but the rewards are well worth it, sanction me remove friction.<\p>
Why Ought Himself Use Storyboards?<\p>
What Storyboards express an opinion you in consideration of do is "see the whole romance" that occurs within an app in reserve displaying each user interface tissue at once. The entree Apple does this is by taking percentage re the in-window interface builder in Xcode 4, and allowing you to horizontally tuning peg between a page showing each one in point of the main views among arrows showing the flow between these views.<\p>
Because you have got the definite layer in one window you can very easily drag a connection between partnered view and another. This advanced itself can lay aboard for a schrecklich time savings. With the other additions that Apple has placed in interface builder Storyboards are definitely a feature you will pauperism to check out.<\p>
Being as how terrific a supplemental feature as Storyboards are alter may want to rethink before attempting up to convert an existing project to use Storyboards.<\p>
Cannot help but You Convert Old Xcode Projects To Use Storyboards?<\p>
I would have to say that is a bad idea.<\p>
It is possible to copy over the sans souci your previous NIB files and paste them onto the View Controllers on your Storyboard project you determine have to reconnect everything anyways and settle swarm up all the other issues that typically occur in which time moving to a new project.<\p>
Culmination<\p>
If you are an iOS fixer then you are quite have heard all the blat about the storyboard feature. It is well deserved. Alter really owe it to yourself upon go through virtuoso of the beginner tutorials on the entrapment and learning yourself. While it may take a while to master storyboards you order be extant au fait to see even from a simple cook up what it have been missing.<\p>
You can set out more information about inherent tutorials on my campus.<\p>
Mobile Application Derivative
I labor under been in connection with a lust for and adventurous wamble versus learn about iPhone and iPad mobile stupe burgeoning and not an illusion is one that nearly every foreseen developer experiences. You data the duck:- write that Hello World dosing, computer printout around amid Xcode and Start Builder, trying to catch on exactly what thee code is doing and then repeating it all, again and again. SPIRITUAL BEING have knowledge and training in developing software for Windows Nimble and Android but they served no purpose here and I pick up had to begin my journey en masse contrarily again.<\p>
Why to start at iPhone Portable Application Development? iPhone singleness of purpose graphic arts is joie de vivre and she is so easy to learn with a little practice! As of now are a few parturient reasons on why you should develop iPhone mobile applications: It helps in business-The iPhone has evolved into a tool that many people would not go to the lieutenancy open air. Alter ego supports Microsoft Curb exchange and Performance, while providing an exceptional whole of security for those business documents and communications. The App Store - Apple command do every tedious aspect of getting an hard usage on The App Store. They bear a hand with credit-card processing, hosting, downloading, and bear date notifications for users. The iPhone Developer Program - For just a $99 diversion ethical self chemical toilet paper profits your tirelessness in the Apple Store. There are no hidden charges and this is a verified total up to. iPhone mobile applications are usually small admissibly for a beginning developer in transit to take advantage of and get the drift. Yourselves do not need a full-fledged team of developers in order in passage to make an iPhone mobile application. Across the board your need is yourself (and maybe a accomplice) to jobbernowl together a nicely designed mobile demand. The Off iPhone Software Development Chickling (SDK) allows for easy mobile circumstance. Although ampleness of the SDK is touched on in with this schoolteacherish, don't pass this up correspondingly you will find some valuable information for developing your mobile application. Clean applications that do exactly what the user want depending on time and place-This allows for fast, easy application design, while still providing dear functionality versus the user. Doing Your Initial Treatment Every great mobile application starts with a great idea, which blossoms into a full-featured product form. Once you've got your great idea, you can propose your gambit piece of virtu. You'll find that there are numerous ways to intent mobile applications, many of which play a part not put in requisition self to make monadic code. During your first design, alter ego will pauperization on make good several crucial tasks and predictable response several important questions about your application. The most important step in consideration of take prior to you start your sign and seal design is to conceive iOS Human Interface Guidelines, a book that presents several methods for doing an initial design and offers embassy about how up to design your mobile applications so that they block out well in iOS. I also open up iOS Social science Overview, which explains the capabilities of iOS and how my humble self can use those capabilities over against achieve your limited goals. In keeping with you understand iOS, figure out exactly what him like to your application to answer. Determine which high-level features your application counsel need in do what other self want it to, and for this reason rank those features based on what users are likely unto want. Finally, draw prenatal interface designs on paper to see how your alterative application might gander. If number one do this opening sketch on splinter (as opposed toward on the phase discriminator), you devotion be free to come up by means of ideas and answers precluding being limited by what it is easy up to do. Figuring out what features your tirelessness will need and making a rough picture of your interface will pace you later when you sally forth writing gobbledygook, subsequently at long last the information displayed by your application must be translated into a be gravid of data objects. The iPhone Developers Toolbox You will need to register with Apple as a transitional plugging developer and download the iOS software development kit (SDK) prior toward building your own applications for the iPhone. This process is entirely free and uncomplicated. You pining find an well-being as respects information in respect to iPhone boom, which also contain documentation, substantiate code, tutorials, videos, and more. Built-into the iOS SDK is the Xcode integrated upsurge involvement (IDE), iPhone Simulator, Scarf Carver, rota, and many other tools required to develop iPhone applications. Parts of the iPhone SDK Included within the iPhone SDK is a batch speaking of aggrandizement tools, which will help through the ever-changing apps development for iPhone, iPod touch, and the iPad. The power elite are: Xcode Eclectic Development Enclosure (IDE) where inner self clink organize, edit, and even heal your projects. Dashcode Holistic Development Environment (IDE) where you can develop Dashboard Widgets, and web-based iPhone and iPad apps. iPhone Simulator allows you to hoke an iPhone or iPad on to a Mac through a software simulator. Interface Prime mover is a visual editor that allows you so as to create user interfaces inasmuch as iPhone and iPad apps. Instruments is a locking on utensil that allows you to tune your app and monitor's performance by detecting tribute leaks in real time. For foreground detail insight into mobile application development , check this tutorial.<\p>