Mobile Develop

In the development of Android applications, we will inevitably use multi-threading, to obtain server data, download network data, traverse the file directory to find specific files, and so time-consuming work is inseparable from the knowledge of

Multithreading:first, the concept 1. What is a process? A one-time execution of a program is a process. The process occupies a separate memory space.   2. What is a thread? the execution path of the code in the process.   3.

Singleton mode: Two ways to create singleton objectsmode one: Before the iOS4 versionstatic Singleclassmanager *singlemanager = nil;+ (singleclassmanager*) Sharedmanager     {@synchronized (self)//synchronous lock, used in multi-threading, can make

iOS Development multithreaded article-Custom nsoperationFirst, to achieve a simple tableview display effectImplementation results show:code example (using a previous way of doing business with the host controller)1. Create a new project to inherit

Block block.1. declare BlockInt (^myblock) (int n) = ^ (int num)class type (^ name) (Requires Pass parameters) = ^ (parameter)2 __block Change VolumeModify the value of the external variables of block blocks in block blocks, only the external

Broadcastreceiver is one of the four components of the Android system, essentially a global listener for receiving the system's global broadcast messages. Because of this, broadcastreceiver can be very convenient to achieve communication between

First, send the user name and password to the server (take the HTTP protocol)Create a URL: request pathNSString *urlstr = [NSString stringwithformat:@ "http://localhost:8080/mjserver/login?username=%@&pwd=%@", Usernametext, Pwdtext];Nsurl *url =

In the iOS Sina Weibo 1.0 framework, the use of xcode5.1.1 development. Now we're going to restructure the frame. Change to xcode7.0 development Manage third-party libraries with Cocoapad The program will be hosted on GitHub In the

Two other components of Android: Broadcastreceiver and service.First, Broadcastreceiver broadcast receiver, broadcast is the way to pass events in Android, there are two aspects: Broadcast sender and broadcast receiver.1, the broadcast sender can

Preparation of Applition initializationAll the actions of the gallery are obviously originated from application. This is a feature of the simple application that distinguishes itself from other kinds of feelings that do not feel application, but

The differences between the XML attributes src and background in ImageView:The background is stretched according to the length and width given by the ImageView component, while SRC stores the size of the original. No stretching is done. SRC is the

Local_src_files: = hellocpp/main.cpp \.. /.. /classes/appdelegate.cpp \.. /.. /classes/helloworldscene.cppJust replace the above with the following:Src_files: = Hellocpp/main.cppSrc_files + = $ (wildcard $ (local_path)/.. /..

There is too much of a way to jump between activity in the app ... Want to change it? Then write it yourself,!!!!!!. There are two ways to achieve jumps between acitvity. One, defined in the androidmanifest. 1. Now add a style to the

At present, the rapid development of mobile devices, different screen sizes, storage and performance limitations, how to combine the functions of HTML5, on multi-platform to create high-performance, responsive mobile site, web developers are facing

IntroductionThe previous article has explained the data loading process, and then we take a look at the data load processing process. According to normal thinking logic, when the data is loaded, the next step is to consider the display logic of the

The IP dialer uses a system-provided broadcast event when it listens for outgoing calls. There are times when we need to set up broadcast events to meet certain needs. Ok, the whole thing today. Define the broadcast event, we use a state monitoring

When using touch actions on a mobile device, the most common use is tapping, holding the screen or gestures, and jQuery Mobile can respond to a user's specific touch by touching the event binding behavior.One, tap and holdDirectly in the code

-(void) Viewdidload {[super viewdidload];/*Nsoperation and Nsoperationqueue for multithreaded programmingStep: encapsulate the action performed into the Nsoperation objectTo add a Nsoperation object to the NsoperationqueueThe Nsoperation object is

Design mode: single ExampleI. Singleton mode is a common software design Pattern. In its core structure, it contains only a special class called a singleton class. The singleton mode can ensure that there is only one instance of a class in the

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