IOS

A summary of iOS layout and screen adaptation In the past, there was no need to consider screen adaptation for iOS development because there was only one screen size. Now there are four types of screens, 4, 5, 6, and 6 P. Therefore, screen

Jpushcpu occupies 100% of JPush's CPU usage rate of 100%. The cpu usage of the running simulator is more than 120%. I didn't pay attention to it at first. When the real machine was running, the mobile phone was very hot. I checked the CPU and

Ios development-UI basics-Application Management (simple interface) Improvement 2, ios-ui This article uses dictionary-to-model to improve the code in the previous article. Dictionary-to-model conversion, which has been introduced in previous

Web developers and designers must know ten iOS 8 changes.Source: mobilexweb Source: Luo lei (@ Luo luolei) Welcome to share the original article with bole headlines XI dapupben, weeping,XI dang DadWith the release of iPhone 6 and iPhone 6 plus, ios 8

Objective-C Protocols, objective-c Objective-C Protocols 1.1 Formal Protocols A formal protocol (like an informal protocol) is a named list of methods and properties. Formal protocol (like informal protocol) is a list of names of a series of methods

IOS development-Detects network status (WIFI, 2G/3G/4G)Detect Network Status In network applications, You need to monitor the network status of your devices in real time.Let users know their network status and prevent misunderstandings (such as the

IOS multithreading and thread synchronization Generally, we use threads to access the same resource in multiple threads. To ensure the security of thread resources and ensure the correctness of thread access. In IOS, we generally use the following

Object, objectid Object-c OOP, source code organization, Foundation framework details 1 1.1 So what is OOP? OOP is a way of constructing software composed of objects. Objects are like little machines living inside your computer and talking to each

Value passing in the basic iOS control UINavigationController and iosui Control In the Basic iOS control UINavigationController, the value is transmitted by proxy, forward, and reverse.   # Import // declare a protocol @ protocol SendValue //

IOS block and iosblock //// Block. h // Block //// Created by tqh on 15/4/12. // Copyright (c) 2015 tqh. all rights reserved. // # import typedef void (^ block1) (id obj); typedef void (^ block2) (); typedef NSInteger (^ block3) (); @ interface

IOS tableVIewcell to the left end of the horizontal line, iostableviewcell You need to add the following code to initialize tableview and draw the cell Proxy: // Initialize and add Self. tableView_chose = [[UITableView alloc] init]; If ([self.

IOS development-custom list controls In the past two days, projects are relatively idle. When you are idle, You can implement the list control by yourself. It took about one day from the start of the project to the preliminary completion. At present,

Animation in IOS -- Core Animation I. Basic animation CABasicAnimation 1 // initialization method: CABasicAnimation * cabase = [CABasicAnimation animation]; 2 // you can use keyPath to set the attribute to be animated. In this

Use of IOS SQLite3I. What is SQLIte? SQLite is a lightweight embedded database, which occupies very low resources. In embedded devices, it may only need several hundred KB of memory. The processing speed is faster than that of Mysql and PostgreSQL. 2

UIButton-first knowledge of IOS, uibutton-ios Today, I have learned all the UIButton controls that are frequently used by apps. These are all summarized during my study. I hope they can help beginners in the future, IOS Beginners should not drag and

Gdata XML parsing configuration and simple use, gdataxml parsing Configuration Import libxml2, use third-party AFNetworking network requests, third-party XML parsing GData Search for the configuration Build Settings required by GData, and add the

IOS interview questions1. The answer to the definition of MAX or MIN. cainiao is as follows: #define MAX(X,Y) X>Y ? X : Y Verification:When MAX (1 = 3, 2) is input, the expected result is 2, but the actual result is 0?The answer is as

IOS Study Notes-UINavgationController,Creating Navigation Controllers -(Instancetype) initWithRootViewController :( UIViewController *)rootViewController Parameter: UIViewController   Method: initWithNavigationBarClass: toolbarClassInitializes and

IOS implements automatic cyclic rolling advertisement-ScrollView optimization and Encapsulation I. Problem Analysis In many apps, we will see a circular scrolling view, such as an advertisement. In fact, it is not difficult to

Introduction to iosGCD 2 Today, the wind blows me away, but I still come back... La la, let's make a short speech. The following provides an in-depth understanding of GCD. You can copy it to your own Xcode and run it. Then, let's take a closer look