Mobile Develop

Define row height, line width, number of rows, number of columns, and spacing with a macro#define ROW_COUNT 5#define COLUMN_COUNT 3#define Row_height #define Row_width Row_height#define Cell_spacing -(void) Viewdidload {[Super Viewdidload]; [self

The 11th day of Miss Scarlett's sisterOne: There is no ID in the model attributeAdd a property ID to the model, set the name substitution/** ID * /@property (nonatomiccopy) nsstring *id; Replace:+ (Nsdictionary*)Replacedkeyfrompropertyname

First, the attribute Uiscrollview most important is the properties associated with the display: Contentsize, Contentinset, and Contentoffset. Contentsize This property represents the size of the content view in Uiscrollview, which returns

Test instructions: Given a tree map, a person from point s, can only walk the K-step, each point has a certain number of apples, asked to collect as many apples as possible, output the maximum number of apples.Ideas:Since it is a tree, and there are

Nsthread:Pros: Nsthread two lighter than others (Cocoa nsoperation, GCD)Cons: You need to manage your thread's life cycle, thread synchronization. Thread synchronization has a certain overhead in locking dataCocoa operationPros: No need to care

Tip One:When we write the program, the width of the screen is not fixed, such as writing 320,480, because we want to adapt to different mobile phones. One common way is to set the width height in the. pch file, because the. pch is a precompiled file

Dictionaries and arrays are divided into mutable and immutableSelf-created general for variable (in-load data)Use other people's general as immutable (take data from it)Interview question: What can key in the dictionary write?Generally we will write

Submit an IPA in itunes connection, or set it up in advance, and pack it up well.Step: Produc->archive->submit to App Store, submit the build version of the successful itunes connection will be:Fill out other information and you can submit it.1.

1 using the drop-down refresh control to improve the user experienceTable View Uirefreshcontrol types of Refreshcontrol properties, no control layout issues to considerInitializationTo set the Attributedtitle property to add an event handling

the concept of a process : Each process is an application, has a separate memory space, in general, an application exists a process, but there are multiple processes (such as the browser)Threads in the same process share memory and resources in

Sometimes it is possible to use some of the features of the map, such as to get the current city, and then return the corresponding data according to the city, without the need for other operations, each time to write a few lines of code, so you do

1. Customizing asynchronous task /*** Asynchronous acquisition of real-time data*/ Public classTimerdatataskextendsAsynctask{@OverrideprotectedBoolean doinbackground (Void ... params) {String GetUrl= Murl + "/realtimedata.ashx?type=data"; URL

Http://zanderzhang.gitcafe.io/2015/09/19/iOS-Andriod Baidu Map Imitation Baidu takeout-hungry-Choose my address-poi search/Title:ios andriod Baidu map imitation Baidu outside to sell hungry? Select My address poi search date:2015-09-19

Often when we encounter memory problems, the solution generally has the following examples:1. Do some processing memory reference, often use soft reference, strengthen the reference, weak reference;2. When loading a photo in memory, it can be

Reprinted from: http://www.cnblogs.com/bandy/archive/2012/04/25/2469369.html-(UIImage *) Stretchableimagewithleftcapwidth: (Nsinteger) leftcapwidth topcapheight:(Nsinteger) Topcapheight This function is an instance function of UIImage, its function

1 developing TvOS App part http://swift.gg/2015/09/14/developing-tvos-apps-for-apple-tv-with-swift/for Apple TV2 recommend a book, and if there's one book that makes me sigh that I didn't spend my time at college, it's the hacker and the painter.3

For example, there are activitya, activityb, close Activitya in activityb.Solution:1. In activitya, set a static variable instance, initialized to this, in activityb, ActivityA.instance.finish ();2. You can also use ActivitymanagerActivitymanager

Communication between Clients: in fact, two clients can not communicate directly, to use the server as a broker, to achieve communication between the two Sides.A client sends data to the server, and the server sends the data to the client (all

Third-party Network framework except for Nsurlconnection and nsurlrequest provided by Apple1 Installing and configuring the Mknetworkkit frameworkDownload and open the Mknetworkkit directory Add Mknetworkkit folder to the new Project-add a supported

the Current mainstream Android development environment is the eclipse/android Studio/intellij idea + SDK, But as Google announces that ADT is no longer being updated, And the website also removes the Eclipse download link that integrates with the