IOS

1, find Nsstring*str = @ "BFJFNNFKANFKNF"; Nsrange range = [str rangeofstring:@ "111"]; if (range.location = = Nsnotfound) { NSLog (@ "not found in STR 111"); }else { NSLog (@ "Search range%@", Nsstringfromrange (range)); } The following method

In actual development, when we click on a button button, we need to trigger an event to execute. When the user is under normal operation, the button will only respond to a single click when clicked. But if a user clicks a button more than once, it

Original address: http://zhangbuhuai.com/2015/02/11/common picture buffering strategy It 's written in front . "Download Picture" is almost every mobile app to deal with the problem, for the iOS development platform, downloading pictures is not a

Brief Introduction The localization of the language in iOS is simple, just to make a simple record of the process. A, localized storyboard on the string 1. Create an application (e.g. project name: Localizationdemo)2. Add localized files3. Add a

1, nil and null literal meaning is simpler, nil is an object, and null is a value, my understanding is nil is to set the object to NULL, and NULL is to set the basic type to empty, the individual feels a bit like the attribute, the basic type is

1. Add a variable in the. h file to record the current scale value and let this viewcontroller follow Uigesturerecognizerdelegate Agent. and add the following variable to. h CGFloat Lastscale; 2. Add the following statement to the

Headphone Wire Control 1. Introducing #import 2. Turn on remote control events [[Avaudiosession sharedinstance] Setcategory:avaudiosessioncategoryplayback Error:nil]; if (![ [Avaudiosession sharedinstance] Setactive:yes Error:nil]) {

URL coding Problems in iOS Roche (http://www.cnblogs.com/kesalin/) This article follows the authoring common agreement "signed-non-commercial-Consistent" NSString's stringbyaddingpercentescapesusingencoding can encode URL parameters, but there is a

  1 Preface Gestures are actually a combination of touch events. gesture event recognition must be added to a uiview class. Multiple gesture identifiers can be added to a single view. Once some gesture actions are captured on this interface,

After reviewing the application for a month, it was released. The first submission was rejected because a private API was used (not realizing that it was a private API), and then the solution had to be changed. Then the second submission was made.

This interview question contains 40 questions. It is a hot one that can be found online, but the answer is not very detailed and complete. The basic answer is cocoachina, and some of your own supplements. 1. Difference between shallow copy and deep

In the previous blog's open-source Chinese IOS client study-(11) What is the process of saving the user name and password to the local sandbox and reading the user name and password from the local machine? -(void)saveUserNameAndPwd:(NSString

IOS platform development tool xcode Xcode is a development tool set provided by Apple. It provides functions such as project management, code editing, execution Program Creation, code-level debugging, code library management, and performance

Tutorial description Tools used: IOS SDK Execution difficulty: normal Operation Time: 15 to 30 minutes Importance of device data First, we need to clarify the question: why do we need to access device data? If you encounter problems during use,

As required by the project, you must disable the copy paste menu option in input when loading HTML using uiwebview. Modify HTML page Method 1: Function onload () { Document.doc umentelement. style. webkittouchcallout = "NONE"; // The menu is

Create a nib-based helloworld Project Create a project Start xcode and click File → new → project. On the open choose a template for your new project page, select single view application project template. Click Next. The page is

-(Bool) Application :( uiapplication *) Application didfinishlaunchingwitexceptions :( nsdictionary *) launchoptions {self. window = [[[uiwindow alloc] initwithframe: [[uiscreen mainscreen] bounds] autorelease]; // override point for customization

Https://forums.codegear.com/message.jspa? Messageid = 561776 #561776 In this post, some guys are confused in this issue. since I just have time to check the rad studio X4 during our laboray holiday, I have try to do some Resarch on this issue. I

This is an article about arm structure in IOS. It has simple words, clear logic, and humor. Non-developers are also worth reading, and the right to increase knowledge. When I wrote "getting started with the neon iPhone", I thought that the reader

Ios-runtime intercepts touch events, displays user touch effects, and ios-runtimetouch [Display effect description] When you screen recording an app, you can view the touch effect of the shot on the app to see the specific clicks. This makes it easy