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IOS Performance Tuning series: use Instruments to dynamically Analyze memory leaks and tune instruments

IOS Performance Tuning series: use Instruments to dynamically Analyze memory leaks and tune instruments Hardware wide: The second article in the IOS Performance Tuning series, which is continuously updated. The first article introduces Analyze's

IOS Enumeration type enum NS_ENUM NS_OPTIONS

IOS Enumeration type enum NS_ENUM NS_OPTIONS Generally, we can use the C-style enum keyword to define the enumeration type. Enum

Three ways to set AutoLayout-NSLayoutConstraint code, nslayoutconstraint

Three ways to set AutoLayout-NSLayoutConstraint code, nslayoutconstraint AutoLayout is a new layout technology introduced by Apple to replace autoresizing from IOS 6. There are three ways to set AutoLayout. Let me explain it one by one. Before

Objective-c syntax (2), objective-c syntax

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TIPS: how to display images in a Label,

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IOS: heap and stack

IOS: heap and stack Objects in Object-c are allocated with memory space in heap mode, and the heap memory is released by you, that is, release. 1. stack: the stack is automatically allocated and released by the compiler, storing the parameter

KVO for IOS SDK

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IOS checks whether the UIView is displayed on the screen

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Use of IOS UIWebView After more than a year of development in IOS, hybrid mobile development is becoming increasingly popular, because development costs and speed are better than traditional APP development, hybrid development is a combination of

IOS Network -- Check Network Status: Reachability, iosreachability

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Mac cannot ssh localhost, error prompt: bash:/usr/local/bin/ssh_session: Permission denied, sshssh_session After searching for a long time on the Internet, I did not find a solution. Finally, I tried the following as prompted: 1. Edit the/etc/sshd_

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Several animation methods in IOS1. UIView first animation (gradient effect) [UIView animateWithDuration:...] After modifying the constraints of the automatic layout, execute the following code to achieve the animation effect.[UIView

KVC and KVO in IOS development, ioskvckvo

KVC and KVO in IOS development, ioskvckvo KVC: Key-Value Coding KVO: Key-Value Observing   Person. m @ Interface Person: NSObject {// This access modifier is used to indicate that even private member variables can be accessed and assigned @ private

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Touch event UITouch application, touch event uitouch Because both UIView and UIViewController are inherited and UIResponder, there is a UITouch event. When a user clicks the screen, a touch event is triggered. With the UITouch event, we can monitor

Delete unused images in ios project using scripts

Delete unused images in ios project using scripts I recently learned a major trick in reading Tang Qiao's "iOS development advanced": using scripts to delete unused images in ios. (there is a small problem in the paper. Refer to the issue on github:

Xmpp organizing notes: import and introduction to the xmppFramework framework, xmppxmppframework

Xmpp organizing notes: import and introduction to the xmppFramework framework, xmppxmppframework To develop an xmpp project, we recommend that you import the framework as soon as the project is created to avoid unnecessary losses caused by some

[IOS Weibo project, [iOS blog Project

[IOS Weibo project, [iOS blog ProjectGithub: https://github.com/hellovoidworld/HVWWeiboA. Light gray background of Weibo1. Requirements The background color needs to be set for the Weibo part. Use an image as the background 2. IdeasMethods:

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