Apple's new place of OC for a high-level programming language!
In fact, few users know，ios system is actually a complete set of easy access mechanism，Many blind or visually impaired users prefer to useiphone。
So，As a developer，I think both in terms of product sales or as a side responsibility，We should do well to easily access support。
Fortunately, however,，Thanks to Apple's strict development standards，It is generally as long as your app can be added to already approved，So basic[……]
In the ios platform，Permanent storage of data so few，比如说 coredata，For example realm，There are several options of nosql，But unfortunately，Several programs to support functions are still too few nosql，So let their selection is very sad - after all,，If it is a simple application of the words，It is not as good as other programs to facilitate quick - although the trend is nosql[……]
Swift language development in the use of time，Many of my friends will be baffling problem encountered memory full，Obviously there ARC ，Obviously the release of memory，But still let the program memory footprint with circulation soared。
There is not really a memory leak occurs，This is actually ARC A mechanism：In each of the main Runloop At the end of the clean-up。That is，It is necessary to have a cache[……]
Swift performed using Xcode development software language when，Many people in the latter part of the project will encounter such a problem，If that diagram as：SourceKitService Take up a lot of CPU and memory，Or even directly cause the system stuck。
Then，This in the end is how it all about? StuckOverflow of the vote on the answer is to say：[……]
How to write an input method on iOS? This question has been answered a lot of people over。You can easily find a detailed tutorial by Google。but，On macOS write an input method is not so simple。
Ok，Strictly speaking，I mean use Swift to write a input method is difficult on macOS。The main reason is that no one has ever done this thing 。
Now able to[……]
Xcode 8 Official version has been released，I want the first time my project to the Swift 3 --After all, this is a trend。
During the migration process, I encountered a lot of problems--such as Xcode provides automated migration tool is not working，I've been waiting for more than two hours，after that I give up，I chose to manually migrate--after all,，Xcode's auto-correction is also very good。
however--[……]
Most of the time，We all want the button design style more in line with iOS，This will make the application interface does not look so jump，Even if the design does not look good，Nor was incompatible with the system。
"I'm not a designer，I don't know how to design beautiful style-but as close as possible to the system is not a wrong choice。 ” —— by Router
So it is for UIButton，Rounded corners + shadow should be the norm。[……]
Until we are，For example, third-party input method Sogou input method has a classic gesture - paddling around on the keyboard to move the cursor。And this feature I am also very common，so，I want to implement it yourself。
The first thing I think of is UISwipeGestureRecognizer ，However, with predictable results，Paddling can only move the cursor one space，This is not what I want[……]
At the beginning of a，Swift did not provide regular expression support，So we can only package，For example write a structure，Like this：
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
struct MyRegex { let regex: NSRegularExpression? init(_ pattern: String) { regex = try? NSRegularExpression(pattern: pattern, options: .CaseInsensitive) } func match(input: String) -> Bool { if let matches = regex?.matchesInString(input, options: [], range: NSMakeRange(0, (input as NSString).length)) { return matches.count > 0 } else { return false } } } |
In fact, Swift already has support for regular expressions，We just need to：
[crayon-693bd2b264af8950648[……]
in most cases，If we want to get the contents of a section of the array (for example, front-to-middle，Some of the values of the array or the last)，This time you need to traverse the array to assign a new array：
|
1 2 3 4 5 6 7 |
let fixedArray = [1,2,3,4,5,6] var myArray:[Int] = [] for (i,n) in fixedArray.enumerate() { if i > 3 {break} myArray.append(n) } |
Such an array of short, better said it does not matter，However, if the array is relatively large and we need to value and more，It is clear that it is a waste of time to traverse up。[……]
Home for iOS system does not seem to be willing to write an input method，Except for a few oligarchs other than large companies do nothing else。Approaching China's unique Apple ecological platform，Find inside are empty shells，Meaningful applications is really very little of。
Pocketed blog recently is working to write in the first paragraph can really support the iOS platform the code table of double input method，First compatible double nature of the programme is open to the "Chick double"，[……]
Speaking SQLite，It is well known to you as MySQL，It is a relational database management system，But unlike the latter is that，It does not necessarily correspond completely independent server!
Generally speaking，SQLite is in the form of a file exist，Mostly used in embedded applications in storage。SQLite library is loaded by the application code，It can easily direct access to SQL[……]
In Xcode，We give iOS platform App，Will inevitably have to add a button to bind an event，At this time there is a statement，You will find a button touch event already not before a "Touch Up Inside" so simple。
Referring to FIG title，There are at least not so much in some events can be for your choice，In more features at the same time，Novices may be more ignorant of the force?[……]
In the process of writing the code，We will meet when the need to ensure that only one instance of the global，This time use the singleton pattern。
Single mode--this ensures that only one instance of a class，And provide a global point of access to。
What about how to implement the singleton pattern? We take a look at the classic Java code，How to implement the singleton pattern。
We had a quick search on the Internet "java singleton pattern" will be able to find[……]
in most cases，People use the programming language is implicitly convert data types to determine whether a languageWeakly typedLanguage，For example, C。
In fact，For in addition to the more classic foreign language，Most other common languages Strong、Weak type could not tell - or，yesInconsistentof。So it will always be someone to argue。If we take as the basis for the concept of opening，Then the conflicts will appear：
比如 Pasc[……]
While our Web development，Would inevitably have to obtain data from the Web server，In many cases also need to submit the data to the server，Which at the moment，We are used to using JSON formatted data，Because it is easy，This time we look，How to use Swift to send JSON-RPC command and get response。
JSON-RPC is a stateless and lightweight[……]
Today in practice design patterns when there is no sudden discovery Swift stack - Stack class is。Since I was shining Java version of the design patterns to learn，So I had no choice but to implement a look at the。
But speaking，In Apple's official manual, "generic" chapter really have a stack of chestnuts，It is the structure implemented。This is actually in line with the Swift's style - after all,， S[……]
Update：A blink of an eye 5 Years passed，This article is also invalid... Now Xcode no longer allows random installation of plugins，The only one recommended at the moment Swift Format for Xcode，Everybody，mutual encouragement。
—
Development on OSX，Then you necessarily involves dealing with this famous IDE。after all，We use IDE is to improve productivity[……]
Friend sent today a very special topic：
Topics：There are two array a,b，Size n,Any of the values of the array elements，Disorder；
Requirements：Through the exchange of a,Elements in the b，Elements of array a and b elements in the array, and the difference between the minimum。
I feel familiar at first glance the problem ... ... And domestic c exams almost，But a closer look seems to be a bit more difficult，Do not look like that has a clue what the problem。Ok，[……]