category chooser

When the CateGory is used in the framework, the call app appears "selector not recognized", the workaround is to call the app's Build Settings--and linking-> other Li Nker Flags, plus-OBJC or-all_load. Here are the reasons for the online reprint: The use of this flag is related to an important feature of OBJECTIVE-C: category. As explained here, there are some conflicts between the standard static lib

iOS category and extensions (Extension) Apple's official documentationcategory is used very frequently in iOS development. Especially in the expansion of the system class, we can not inherit the system class, directly to the system class to add methods, the maximum extent of the objective-c dynamic language characteristics.#import@interface NSObject (Category)-(void) MyMethod;@endThis is the simplest

Select a categoryAVAudioSessionCategoryAmbientOrkAudioSessionCategory_AmbientSound--For non-voice-based applications, apps that use this category will be muted with the mute key and the screen off. It does not stop other apps from playing sound, and can play sounds with other apps such as Ipod,safari. Note: The category cannot play sound in the backgroundAVAudioSessionCategorySoloAmbientOrkAudioSessionCateg

This article mainly introduces how to obtain the number of articles under a specified category and its subcategories in WordPress. This article summarizes the use of some built-in functions. For more information, see Obtain the number of articles in a specific category Sometimes we want to get the number of articles under a category so that they can be displayed

OC-objective concepts and usage, oc-category concepts The previous article introduced the use of the @ class keyword in OC. First, let's take a look at the scenario. If we want to expand the functions of a class, what should we do? For object-oriented programming, we will first think of inheritance, but there are two problems with inheritance: First, the premise of inheritance is that this class can be inherited because some classes in Java are not al

OC object adds attributes to a category You cannot add attributes to a category in an OC object. However, in actual development, attributes must be added to a category for better performance. The added attributes cannot have default member variables. We need to implement the set and get methods by ourselves. We need to use the runtime As follows: # Import

IOS developed for UIButton Add Category method load network pictureUsing the GCD thread queue implementationThe project is as follows:Uibutton+webcache.h#import To add a category method to a button@interface UIButton (Webcache)-(void) Xr_setbuttonimagewithurl: (NSString *) urlstr;@endUibutton+webcache.m#import "Uibutton+webcache.h"@implementation UIButton (Webcache)-(void) Xr_setbuttonimagewithurl: (NSStrin

[Javascript]/** get the style value of the specified category selector * @ methodgetClassStyle * @ param {String} name of the category selector * @ param {Document} doc specified document *@ return {String} cssText of the style... S [javascript] /* * Obtain the style value of the specified category selector. * @ Method getClassStyle * @ Param {String} name of the

Copy codeThe Code is as follows:$ Act = isset ($ _ GET ['ac'])? Trim ($ _ GET ['ac']): ";If ($ act = 'del '){$ Sort_id = isset ($ _ GET ['id'])? Intval ($ _ GET ['id']): '0 ';$ Sort_ids = $ sort_id;$ ChildrenIds = getChildrenIds ($ sort_id );If (! Empty ($ childrenIds )){$ Sort_ids. = $ childrenIds;}$ SQL = "delete from 'Article _ sort 'WHERE 'sort _ id' in ({$ sort_ids })";$ Res = mysql_query ($ SQL );If ($ res){Alert ('deleted successfully ');Exit;}Else{Alert ('deletion failed ');Exit;}} The g

The following is an example of using Php to classify and read unlimited columns. I hope this article will help you. The following is an example of using Php to classify and read unlimited columns. I hope this article will help you. How to Implement the infinitus topic classification idea: Get the auto-increment ID (that is, the parent ID) and then obtain the sub-ID (that is, the uid sub-id) data in the database as follows:Id: 1 uid: 0 I'm column 1Id: 2 uid: 1 I'm column 2Id: 3 uid: 1

According to the parameter Display category (three levels of association, JSON data is required ), Scripts/Category. js Call method:$ (Function () {BindCategory (); // BindCategoryData ($ ("# txtCategoryId"). val () by default, BindCategory ());})View Code Binding three levels of linkage (see: http://www.cnblogs.com/haozhenjie819/p/3887279.html for details)Function BindCategory () {var $ txtCategory = $ ("#

("phonetype.telecom"),Phonekeyvalue : new ("181", phonetype.telecom), : new phonekeyvalue ("189", phonetype.telecom) : }; : #endregion : Getphonetype : #region Check whether the mobile phone number is the corresponding phone category // A : // Check whether the mobile phone number is the corresponding phone category :/ /

Java Collection Series directory (category)Go to: Java Collection series directory (category)The overall framework of the Java Collection series 01Collection Architecture of Java Collection series 02ArrayList detailed introduction to the Java Collection series 03 (source parsing) and usage examplesFail-fast Summary of Java Collection series 04 (through ArrayList to illustrate the fail-fast principle, soluti

Require_once 'app/MAGE. php ';Mage: APP ('default ');$ Category = Mage: GetModel ('catalog/Category ')-> load (3 );$ Productcollections = $ category-> getproductcollection ();$ Productcollections-> addattributetoselect ('name '); Foreach ($ productcollections as $ productcollection ){Echo $ productcollection-> getname ();Echo "} ?> Magento's homepage is a static

1. extension is more like Anonymous category (class extensions are like Anonymous categories) 2. Category is more inclined to be written in an independent file, and then named "nsview + customadditions. h ", in the corresponding. block in the M file. Therefore, cagegory tends to be used to separate functions of classes and organize functional modules of classes. Extension is more inclined to write at the to

Preface: Objects and categoriesThese two are intended for beginners and are confusing.I try to explain the differences between objects and classes on the physical level of the calculator. Note: Whether it's an object-oriented or structured program,When the program is executed.The computer loads the file to the memory and executes the file row by row.The file loaded into the memory. Let's call it "program code 」 The unit of object-oriented program code is the unit of category.That is to say, wh

ProgramFile /Chapter06_intent_category/src/COM/Amaker/test/mainactivity. Java Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Package com. Amaker. test;Import Android. App. activity;Import Android. content. intent;Import Android. OS. Bundle;Import Android. View. view;Import Android. View. View. onclicklistener;Import Android. widget. Button; /** * Test the category attribute of int

In general, the category can add methods to existing classes or declare property for existing classes, but cannot automatically generate implementation code for the corresponding property. In other words, even if you add a property to a class by category, you cannot access the property in the form of "Self.name". But! With the help of runtime, this is not a problem. For example, I intend to add a property (

Original:How do I train the last layer of the inception new category? Modern object recognition models have millions of parameters that can take weeks to fully train. Learning Migration is a shortcut to a lot of such work to fully train the pattern of a group of classes such as Imagenet, and retrain new classes from existing weights. In this example, we'll start with the last layer of retraining, and let all the rest be the same. For more information

-----------------------------------------------Category--------------------------------------The class is to add the method on the basis of the original class, and only need to use the original class to instantiate the object, the call can be. You cannot add variables or attributes to a class, only add methods.1. Under what circumstances is the actual development used?A: Expand a class that is already encapsulated (you do not want to change the origin