oc autostyle

After taking a photo and uploading it to iOS, the web Client displays the rotating Swift + OC solution, iosswift + oc Problem description: A strange phenomenon occurs when you upload a mobile phone portrait, that is, when you upload a photo, the mobile phone displays the portrait normally, but there is a left-hand 90 degrees problem on the web side. This problem occurs only when the picture is vertical. The

Dark Horse programmer ------ inheritance of OC object-oriented, dark horse ------ oc ------ Android training, iOS training, and Java training. We look forward to communicating with you ----- I. Basic concepts of Inheritance Inheritance is one of the three features of orientation. It refers to defining a new class based on a class. The original class becomes the parent class (base class), and the new class

"OC" constructor and classification, and "oc" ConstructorI. Constructor(1) Call of Constructor Create an available object: Person * p = [Person new]; The new method is actually divided into two steps to create an object: 1) Use the + alloc method to allocate storage space (return the allocated object ); 2) use the-init method to initialize the object. You can split the new method as follows: 1. Call the cla

: finding characters and substringsDividing Strings: Split stringCombining Strings: Stitching stringsGetting C Strings: Get the C language stringGetting characters and Bytes: getting characters or bytesGetting A string ' s length: Gets the lengths of the stringsWriting to a file or URL: Writes the content to a document or URLCreating and Initializing A string from a file: Create and initialize a string from a documentDeprecated: DeprecatedCreating and Initializing Strings: Creating an initializa

OC-@ property, self, and class nature, oc-@ propertyselfMake code writing easier -- 1 -- seter and accesser1.1 setter1.2 getter-- 2 -- the nature of the class2.1 class objects2.2 category nature2.3 How to obtain class objects2.4 use of class objects2.5 storage of class objects-- 3 -- SEL type3.1 SEL-- 4 -- @ property keyword4.1 Basic Concepts4.2 @ property usage4.3 @ property precautions-- 5 -- @ synthesize

Use of OC Regular Expressions and OC Regular Expressions Generally, the use of regular expressions in OC is two steps. 1. Create a regular expression object 2. Use a regular expression to test the corresponding string For example NSString * checkString = @ "a34sd231"; // 1. create a regular expression. [0-9]: indicates the NSString * pattern = @ "[0-9]" set of ch

OC, oc Language I. Encapsulation 1> encapsulation Definition Hides the attributes and implementation details of an object and only exposes the interface to control the read and modify access levels of attributes in the program. 2> advantages of encapsulation You can use the set method to prevent improper values for member variables. Only public interfaces are provided to the outside, and the operation

[IOS learning basics] OC, ios basic oc A few days ago, it suddenly occurred to someone else's class. the m file contains the following code: @ synthesize xxxx = _ xxxx. At that time, the role did not understand what it meant. After that, it slowed down and found that the basic knowledge of some classes was forgotten, although you don't need to go into some of the old things in the past, you should review th

Most of this article is reproduced on the network, there are some of the content I changedOne, the setter accessor getterSetter:set+ an instance variable name with the first letter capitalizedsuch as:-(void) Setnickname: (NSString *) name;//parameter name not identical to instance variable nameGetterSame as instance variable name (no dash), and return value type is also consistentCases:@interface Cup:nsobject{float _price;}-(void) Setprice: (float) Price;-(float) Price;@endIi. differences betwee

1.HTML page1 HTML>2 3 Head>4 5 title>Invoking the OC method with JS in HTMLtitle>6 7 Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8">8 9 Script>Ten One functionTest () A - { - the Alert ("Test Alert ..."); - - return "ABCD"; - + } - + Script> A at Body> - - - - BR/> - in BR/> - to BR/> + - ahref= '

Principle: Each time the WebView execution jumps will be intercepted by iOS, execute the following function to obtain system permission.So it can be transferred to the system according to the jump information, to perform the corresponding functions, such as opening albums.Each request in the webpage is triggered-(BOOL) WebView: (UIWebView *) WebView shouldstartloadwithrequest: (nsurlrequest *) Request Navigationtype: (uiwebviewnavigationtype) NavigationtypeHtml:HTML>Head> Metahttp-equiv=

OC basics -- Property, oc -- property Compiler commands: Used to tell the compiler what to do @ Property: @ Property is the instruction of the compiler, which tells the compiler to automatically generate the setter and getter declarations in @ interface. @ Synthesize: @ Synthesize is the compiler instruction that tells the compiler to automatically generate setter and getter implementations in @ implementat

1. Arrays1.1 Immutable Array (reading group only)Note :the difference between OC arrays and C arrays:-The method of creation is different;-The OC array itself is also an object and is a collection of object addresses of any type;-"OC-compatible array of C, which can be used to store objects;"(1) creating an Array object-"mode One": Nsarray *array = [[Nsarray allo

As in the previous article, the importance of the array is self-evident, in the process of OC programming we will continue to use Nsarray, and C language is different, we here can only save the OC object type, cannot save the C language Basic data type, can not save nsnull type, But our array here can be a variety of object types, for example, in the same arrays, can be stored in the string type, but also c

[Learning notes] [oc] pointer, learning notes oc 1. Take the value of a variable, either directly or indirectly Direct: Access variable Indirect: obtains the value of the variable through the memory address of the variable. The variable that stores the memory address is the pointer variable. 2. syntax for defining pointer variables: type * variable name : Obtains the address operator and the memory address

OC memory management summary, clear and clear !, Oc Memory Management Summary How can I improve my speech ability? For example, if I want to describe one thing, how can I give a simple and clear description to the other party? I teach you: I rely on it! (Although there are only two words in this reply, it deeply expresses the deep blessings and deep feelings of the respondent. It is concise and concise, w

your plist file less added something, together to send up;　　Here is the choice of one, I have chosen to run in the background, you can choose another property, use time to run, as for key I do not remember. I can find it in Baidu Map Forum.Here incidentally, after the iOS9, Apple opened ATS, the service is actually need to support HTTPS, it is estimated that Apple's goal is to reverse force developers to enhance their security, but sometimes the company does not want to spend money to buy the H

Nil Nil NULL Nsnulnil: null pointer to object in OCNil: null pointer to class in OCnull: Pointer to a different type of null pointer, such as a C -type memory pointerNsnul: An object that represents a null value in a collection objectif obj is nil:[obj message] will return no, not nsexceptionif obj is NSNull:[obj message] Throws an exception NSExceptionOC Exception Handling:cup *cup = [[Cup alloc] init];@try {[Cup fill];}@catch (NSException *exception) {NSLog (@ "Main:caught%@:%@", [exception na

OC reflection --> dynamic creation class, oc -- Create a Class 1-(Class) createNewClass {2 const char * className; 3 className = [@ "Student" UTF8String]; 4 Class kclass = objc_getClass (className ); 5 // determine whether this class already exists. if it exists, it will return. if it does not exist, it will create 6 if (! Kclass) 7 {8 Class superClass = [NSObject class]; 9 kclass = objc_allocateClassPair (

[Oc learning diary] Singleton mode, oc learning Diary First, let's take a look at the concept of Singleton mode. The Singleton mode ensures that only one object (only one address) exists in the system. The following is an example of a student. To ensure that there is only one object in the system, you must override the object creation method and object COPY method. 1 # import Next, let's look at the imple