IOS

Although this problem is very simple, it has been a long time for cainiao I have been in contact with for two days. I cannot find the relevant solution on the Internet. To avoid other people like me, record it. The tutorials found on the Internet

This blog post is mainly for IOS apps and is a summary of the problems related to screen rotation. The main content is: Blog: http://www.cnblogs.com/jhzhu Email: jhzhuustc@gmail.com Author: Zhi Ming-so Time: Three ways to change

In Objective-C, class encapsulation is essentially similar to other OO languages. However, there is a big difference between concepts and writing expressions, Property The Property here is not a simple class member variable, but a special feature in

, Highly coupled together , Two objects, each over. Computer2* computer2 = [[[Computer2 alloc] init] autorelease]; - (self = self.cpu = } Aggregate key code: TRCpu3* cpu = TRComputer3* computer3 = ; -( NSLog(

    A.   B. A. We can run the interface first. When looking for a file that can affect the interface, we can guess that the file can change the interface. B. Find the target file, drag the control at will, and run the program to see the interface

My development environment is MacBook Pro OS X 10.9.1 and Xcode5. Download cocos2dx and decompress it. The version I used is 2.2.1 and the 3.0beta version is not available yet. Terminal cd to cocos2d-x-2.2.1/tools/project-creator, my full path

Function, first of all to comply with the Protocol, must be implemented And the initialization method. Message. You can create class objects. : [] :] ] The unchangeable string can be used repeatedly. Generally,

-(BOOL)isEqual:(id) NSLog( (self == } ([ isMemberOfClass:[Student Student* stu2 = } } }

    Each NSThread object corresponds to a thread. NSOperation/NSOperationQueue object-oriented Thread Technology (distribution) is based on the C language framework and can make full use of multiple cores, is a multithreading technology recommended

1. Objectives In the Basic and Playback tutorials (note: the other two tutorials), GStreamer can be perfectly integrated with the main loop of GLib, in this way, you can monitor pipeline operations and UI processing in a simple way. On iOS and

Yesterday we introduced the use of the NSThread method, and today we will introduce the network download of NSOpreation. I decided to present small knowledge points in a concise manner for reference. 1. Use a selector to load NSOpreation Networks 1)

Add the following code in the AppDelegate. m file to change the Root View Controller. // Create an object for the navigation bar controller and initialize the Root View UINavigationController * pNavigation = [[UINavigationController alloc]

Today, I made a small ScrollView example (my environment Xcode5.0.2 IOS7), and found that the scrolling fails. Even if the contentSize of scrollView is set, I did some research, finally, the solution was found: Before ios6, because Xcode does not

If you have just learned how to create table views, you must be eager to create some defined cells to meet your individual needs. In fact, this is not difficult. Let me share it with you. What's more, I have added a new function, that is, the

Network request formats are generally divided into two types: the first is synchronous requests, the disadvantage is that there will be a choppy phenomenon during big data loading. The second is asynchronous requests: optimized synchronous requests

There are many ways to upload files in ios. For example, if you want to directly post a file using base64, you may find that the server is not happy to collapse the file, therefore, you just need to use the standard http upload protocol mutipart for

I. Performance Optimization StrategiesPerformance issue handling processDiscover/reproduce ProblemsAnalysis Using ToolsAssumptionsImproved code and DesignRepeat the preceding four steps until the problem is resolved.Main Performance Optimization

After class, I sat down and quietly summarized what I learned today.First, synchronous requests and asynchronous requestsSynchronous request,Using the main thread to obtain all the request data at a time leads to a relatively easy problem.When the

//// ARCMacros.h// #if !defined(__clang__) || __clang_major__  

I. Differences between Get requests and Post requests1. Get is a request to request data from the server, while Post is a request to submit data to the server.2. Get is used to obtain information rather than modify information. Similar to the