IOS

We can find the definition of class and object in/usr/include/objc/objc.h and runtime.h: typedef struct OBJC_CLASS *class; typedef struct OBJC_OBJECT { Class Isa; } *id; Class is a pointer to a objc_class struct type, and an ID (any object) is

"notice before Escape" The computer system needs Mac OS X (10.8) or above; 1. Please back up your equipment data before escaping from the prison to avoid loss 2. This jailbreak is compatible with 64-bit iOS 9.1 devices (that is, the iphone 5S,

The date is set to January 1, 1970 the solution that causes 64-bit iOS devices to fail to start: Solution One: Send to the Apple Store for repairs, dismantle the machine by the professional and remove the battery, and then reinstall it after 10

The date-time format object provided by the IOS SDK needs to use the Nslocale object to control the display of the date and time, and en_US is often used most of the standard formats, but friends who are accustomed to using Java or C # will overlook

What exactly is Apple pay? First of all, we must make clear that applepay relative to Alipay and micro-credit payments, is completely different.You are not able to recharge the ApplePay, said more bluntly, it is a "card bag", its function is to

LLDB is the abbreviation of low level debugger, LLDB is often used in the debugging of iOS development, LLDB is the Xcode built-in dynamic debugging tool. Use LLDB to debug your application dynamically, and if you don't do additional processing

I have no title and image only Uitabbaritem. I want to know how I can change the size of the image so it can occupy the entire uitabbaritem. I looked all over the internet, but I couldn't find anything. I have tried: Uistoryboard *storyboard =

From "A little progress every day." When the HTML page is displayed on the iOS device, when a serial number is entered consecutively, the click Defaults to the phone number dialing. Methods to suppress this event: meta name= "Format-detection"

sliders are used in many places, so here we show you a custom, two-way-controlled slider, and you can get the corresponding range values through the proxy method, some of the code is as follows: Property Value: /**Set minimum value*/@property

Problem description The following business scenarios, in iOS applications, embed the H5 page, call him a page, click a page to jump to b page, b page has a button, call him button S, button s will trigger an AJAX event, to request an application

Original address iOS under the input[type= ' Tel '],input[type= ' text '] input box, in the trigger, input will have a gray background color block, flash over, online search a lot of keywords, have nothing, and later with the development of iOS

Today suddenly have a demand, the second page to display a page, the first page to display a picture title or introduction, etc., but! Backstage only returned a url! This means that I have to take the first page myself through the URL to get the

Problem Description When you use a delegate to add a click event to an element, if the event is delegated to document or body, and the element of the delegate is not clickable by default (such as Div, span, etc.), the Click event is invalidated.

Playing cached audio on iOS's Safari browser for offline use has been a challenge that has proven impossible to accomplish. But with the development of the Network audio API (which supports only the WebKit kernel), it is now finally implemented-but

Today's blog content is relatively simple, is to look at the Shrimp Music Home channel selection of an animation effect of the implementation. Before using mask to write another kind of tab switching effect, NetEase cloud music inside a tab switch

The jar package is Commons-codec.jar.Pnuts//base64 decoding into picturesfunction Gldbase64toimage (imgstr,imgfilepath) {//Base64 decoding a byte array string and generating a picture if("". Equals (IMGSTR) | | Imgstr = =NULL)//image data is

Preface Zxing (GitHub image address) is an open source library for generating and scanning bar codes (the Open Source protocol is apache2.0 ). It not only supports a large number of bar code formats, but also provides implementation versions in a

IOS reverse engineering: Hopper + LLDB debugging third-party App, javasperlldb LLDB is short for Low Level Debugger. LLDB is often used in iOS debugging, and LLDB is a built-in dynamic debugging tool of Xcode. You can use LLDB to debug your

The concept and core mechanism of RunLoop in iOS Directory [-] RunLoop Definition Purpose Understanding Features RunLoop Mechanism Call Stack when RunLoop is running Message Events supported by RunLoop) Run Loop Modes Run Loop application definition

Are Native, Web, or hybrid applications used to develop mobile applications? The answer is that different mobile applications require different technologies. Just select the appropriate one. In fact, most mobile applications, whether enterprise or