copy ios app

Ios: one app starts another app, and ios starts another app Problem description: You need to be able to start another ios application from one ios application. Development Environment:

Before reading this article, I first want to know the differences between copy and retain. If there are any errors, I hope you can give me more advice: Differences between copy and retain: Copy is to create a new object, retain is to create a pointer, reference object count plus 1. The Copy attribute indicates that the

(If you encounter the problem of deep copy and shortest copy during encoding today, find this article online and repost it by: Yangchen.) before reading this article, first understand the differences between copy and retain, if there are any errors, please kindly advise: Differences between copy and retain:

: (nszone *) Zone Student.h file@interface student:nsobject STUDENT.M file#import "Student.h" @implementation Student + (ID) studentwithname: (NSString *) name { //Here it is best to write [self class] Student *stu = [[[Self class] alloc] init] autorelease]; Stu.name = name; return stu; } -(void) dealloc { [_name release]; [Super Dealloc]; } #pragma mark Description method cannot print self internally, otherwise it will cause a dead loop -

immutable objects Create immutable replicas (copy) is shallow copy, others are deep copy Example: A custom copy of an objectThe object has a copy attribute, which implements the Nscopying, nsmutabelcopying protocol to implement the copywithzone of the Protocol: Methods

demand, based on the second demand: "From their own app jump system app." Upgrade to open Safari from your app without refreshing the page.As we all know (as can be seen from the above article), to open Safari, you need to pass the OpenURL method to the address before you can open it. Once the address is passed in, Safari opens or refreshes the page. Therefore,

It was all about remembering to keep copy and strong and asking me. I don't know what I'm talking about.Verify with simple code. Sometimes it takes a little time to verify that you can make your ideas clearer.nsmutablestring * mustr = [nsmutablestring stringwithstring:@ "good"]; Self . str = mustr; Self . fuzhistring = mustr; NSLog(@ "Self.str is (%@) = = = Str,self.fuzhistring is (%@)", self. Str,self. Fuzhistring); NSLog(@ "Self.str *p

Source: http://ask.seowhy.com/article/2541The day before yesterday wrote an article about the difference between the Web app and the native app, and that article mainly wrote about some of the differences in design. A friend asked what the difference was.Here's a comparison from the following points:Development aspectsNative app Each mobile operating sys

How do I send notifications from one app to another app? (Example: Sogou input method to download skin after the completion of the use of skin) Note: Sogou Input method is app, and keyboard is extension When you add app extension to your app, if you want to send a notice to

Ios-app publishing to app-store process, ios-appapp-store The first attempt is a complicated process. 1. First, you need an apple developer account to log on to the background. You need to create a publisher certificate. You can see that I have created a developer certificate. below is the newly created publishing cer

sandbox, equivalent to offline data (Official Rules except app The resulting files cannot be placed in the document and need to be placed in the cache) NSString *cache=[nssearchpathfordirectoriesindomains (Nscachesdirectory, Nsuserdomainmask, YES) lastobject]; NSString *path=[cache stringbyappendingpathcomponent:@ "Friends.plist"]; [Data Writetofile:path Atomically:yes]; Then processing data nsarray *dictarr=[nsarray Array

Deep copy and shallow copy of IOS collectionArchivesiOSConceptThere are two ways to copy objects: Shallow copy and deep copy. As the name implies, shallow copy, not

IOS ---------- detects that the app enters the background or foreground, and ios ---------- app When developing a player, you often need to check that the app enters the background (pause PLAYING) or enters the foreground (start playing ). The method is very simple.1. Check

The difference between copy and retain:copy is to create a new object, retain is to create a pointer to reference the object Count plus 1. The Copy property represents the same contents as two objects, the new object retain to 1, independent of the reference count of the old object, and the old object does not change. Copy reduces the object's dependency on the c

determined, and no matter how the string content is modified, the address will not change. But the second line here is not a re-assignment of the memory address pointed to by STR, because the left str of the assignment operator is a pointer, which means that the memory address is modified here.So the second line should understand this: "Newstirng" as a new object, the memory address of this object is assigned to Str.I like the next two ways to view memory address1 p STR Prints the memory addres

and object contents of the object itself (lldb) p str (NSString *) $0 = 0x000000010c913680 @"a" po strThe address where the pointer to the referenced object is printed (lldb) po str 0x00007fff532fb6c0 Reference documents[1] Apple collections programming Topics:copying Collections[2] deep copy of IPhone Dev:ios development and light copy (Mut

copy is immutable, and the object returned after Mutablecopy is mutable.(4) We mentioned above are the system class, if it is our custom class, copy the result? I define a person class below, which is implemented as follows:Person.h#import Person.m#import "Person.h" @interface person () First of all, why do you want to implement the Copywithzone and Mutablecopywithzone methods described above? In fact, not

the left str of the assignment operator is a pointer, which means that the memory address is modified here.So the second line should understand this: "Newstirng" as a new object, the memory address of this object is assigned to Str.I like the next two ways to view memory address PSTR will print the memory address and object contents of the object itself 12 1.(lldb)pstr2.(NSString*)[emailprotected]"a" POSTR is the address where the pointer

IOS social app technology partners pen questions, ios social app partnersThe ideal situation is of course to find an architect with the ability to manage and write code. However, if such an architect can initiate a project on his own, it is really difficult for you to pull him. Just meet certain conditions and do not p