IOS

The Core animation is directly acting on the Calayer (not UIView) very powerful animations across Mac OS X and iOS platforms Api,core Animation animation execution is done in the background and does not block the main thread. Core animation

Forget about the iphone or the ipad access restrictions password, it does not matter, a minute to quickly resolve. This method is applicable to the 7.0.4 system, has been tested, other versions please self-test The total method is divided into two

iOS-side apps are added to the App store by adding a binary file, similar to the Android obfuscation, to prevent decompile, but sometimes for reasons that are not descriptive, we imagine some Daniel learning some experience and saying, "Reading

In the Uicontrol control event, briefly explain the following several events. Description: Because it was tested in the IOS simulator, you can't use your finger, you can only use the mouse. 1) Uicontroleventtouchdown Refers to the left mouse button

Models Size Resolution Logical resolution Ppi Status bar Height Navigation Bar Height Label Bar Height App Store icon Icon of the main screen Set icon Spotligh Notice icon Toolbars and navigation

This article directory one, add a simple layer two, add a layer to display the picture three, why Calayer use Cgcolorref and cgimageref these 2 types of data, without Uicolor and uiimage. Iv. UIView and Calayer's Options v. Other relations between

I. Nsrunloop In cocoa, a run loop (Nsrunloop) object within each thread (Nsthread) object is used to loop through the input events, including two classes, one from the input sources asynchronous event, and one from the timer Sources synchronization

Recently developed new features, which have the need to load Web pages, and recently learned that the Wkwebview, said that the memory consumption is small, fast loading, and JS interactive good. Because the need to interact with the Web page, and

#import "DownLoadCell.h" @implementation Downloadcell -(Instancetype) Initwithstyle: (Uitableviewcellstyle) style Reuseidentifier: (NSString *) reuseidentifier{ Self = [Superinitwithstyle:style reuseidentifier:reuseidentifier]; if (self) { _button =

class library list: Dznemptydataset (UI, empty table View graph operator) Pdtsimplecalendar (ui,drop-in calendar component) Magicalrecord (core Data assistant implementing active record Mode) Chameleon (UI, Color frame) Alamofire (Swift Network)

1. Get Current time + (NSString *) getcurrentdate { Get current time NSDate *now = [NSDate Date]; Kelog (@ "Now date are:%@", now); Nscalendar *calendar = [Nscalendar Currentcalendar]; Nsuinteger unitflags = Nsyearcalendarunit | Nsmonthcalendarunit

In many cases, we need to know the width and height of a piece of text to better write the interface. The method in iOS is actually very simple, write a simple method as follows: cgsize calculatetextsize (uifont font, nsstring text) { cgsize

The common encryption method is to encrypt the password and save it to the user preferences. The keychain is kept in clear text, but it is not known where it is stored. 1base64 encryption Base64 coding is the foundation of modern

If it is the contents of the page alert, we can wait for the page loaded, that is, in the Webviewdidfinishload to execute the following JS code, you can screen alert [Mywebview stringbyevaluatingjavascriptfromstring:@ "window.alert=null;"]; But the

Reprint from: Click to open the link Summary of knowledge points often used or infrequently used in iOS development, collection and accumulation of several years (trampled pits). i. IPhone Size Mobile phone Model Screen Size

function RealizationEnter the registration interface from the login interface to return to the login interface from the registration interface function Realization Idea Search on the internet found that you are using navigation, but the individual

Reprint Address: http://blog.csdn.net/kmyhy/article/details/7940704 Today, multitasking is an interesting feature that has been successfully integrated into the device, and one of the things that we use today to fully support multitasking is

to save a picture for example: 1. Save /** * Save user Avatar * * + (NSString *) Saveuserimage: (UIImage *) image{nsstring; Gets the document path Nsarray *document = Nssearchpathfordirectoriesindomains (NSDocumentDirectory,

several ways to use global variables in the iphone development（ Method 1: Use static variables (not recommended) Method 2: Use singleton pattern (ref link:http://nice.iteye.com/blog/855839) Method 3: Set the global variable to Appdelegate In the

Yesterday received several new tasks, the first one is to implement the text translation function. Search data from the Internet to find commonly used there are Baidu translation, Youdao translation, Google translation. All three are in contrast: 1.