strong reference

Discover strong reference, include the articles, news, trends, analysis and practical advice about strong reference on alibabacloud.com

2-23 the ownership modifier (_strong modifier and _weak modifier) in Arc

A _strong modifierThe 1._strong modifier is the default ownership modifier for the ID type and object type. As follows:ID obj = [[NSObject alloc] init]; // when no explicit variable ownership modifier is used, the default is _strong modifier ID

Memory reclaim mechanism at the Android C ++ Layer

Document directory 1.2 create sp and wp objects 1.4 usage 1. Memory reclaim mechanism of c ++ Layer The memory recovery at the Android C ++ layer is mainly implemented through three classes: RefBase, sp, and wp; SP and WP are two smart pointer

Weakeventhandler: avoiding GC problem by strong reference of an event)

Using System; Using System. Collections. Generic; Using System. text; namespace testweakreference { class weakeventhandler T : weakreference where T: eventargs { Public weakeventhandler (): base ( null ) {}

Technical Points of ARC memory management for iOS development

Technical Points of ARC memory management for iOS developmentThis article comes from my personal ARC Study Notes and aims to summarize the key points of the Automatic Reference Counting (Automatic Reference Counting) Memory Management Technology in

Programming with OBJECTIVE-C (vi)

This time the main content is block, for beginners, the code involved in the content of the block is really easy to confuse. First of all, the concept of block, block is an apple for C, C + + and OC add a feature, it contains a part of the code, can

Deep understanding of Weakhashmap

Weakhashmap(a) to view the API documentation, theweakhashmap points are as follows:1. Hash table-based MAP implemented with weak keys. In Weakhashmap, when a key is no longer in normal use , its entry is automatically removed. More precisely, for a

Java/android reference types and their use comprehensive analysis _java

There are four types of references in java/android, respectively: Strong reference-strong referenceSoft Reference-Soft referenceWeak Reference-Weak referencePhantom Reference-Virtual reference Different reference types have different

Weak references? Strong references? Not held? The amount of God--Swift Reference Counting Guide

ARCThe compile time feature of the automatic memory management of the ARC Apple version. It represents the automatic reference count (Automatic Reference counting). That is, for an object, memory is freed only if the reference count is 0.Strong

GC and memory leaks in Java

Since its inception, more than 20 years ago, Java is still the most widely used language. This relies on the various technologies and features provided by Java, allowing developers to gracefully write efficient programs. Today, let's talk about a

Java/android reference types and their usage analysis

There are four types of references in java/android, namely:Strong reference-strong referencesSoft Reference-Soft referenceWeak Reference-Weak referencesPhantom Reference-Virtual referenceDifferent reference types have different characteristics, and

5.6 Data types and applications

Basic types and reference types, strong references, and weak referencesData types in Java can be categorized into two main categories: reference type (Reference) and base type (primitive).1) Basic types are 8 kinds: boolean, char, Byte, short, int,

Java Reference WeakReference

Reference is an abstract class, and Softreference,weakreference,phantomreference and finalreference are the concrete classes that inherit it.Next, we will introduce and analyze the characteristics and usages of the strong references and the various

The difference between weak and soft references in Java and the introduction of virtual and strong references _java

Knowing the concepts of weak references and soft references are different from how they are used, and referencing classes play an important role in the process of garbage collection. We all know that the garbage collector reclaims the memory of

Relationship between garbage collection and strong references, soft references, and phantom references

The Java 2 platform introduces the java. Lang. Ref package, including classes that allow you to reference objects without leaving them in memory. These classes also provide limited interaction with the garbage collector. Peter Haggar analyzes

In-depth discussion of JAVA.LANG.REF package--turn

OverviewJava.lang.ref is a special package in the Java class Library that provides reference classes that are closely related to the Java garbage collector. These reference class objects can point to other objects, but they are different from

Java memory leaks-full parsing and processing methods [reprint]

Java memory leak-full parsing and processing methods [reprint]@author Small Basket@address http://www.jianshu.com/p/bf159a9c391a This article explores the issue of memory leaks step-by-step.Bo Master for the first time to write long technical

Strong references to Android performance gains, soft references, weak references, virtual references use

Reprint please the head source link and the tail two-dimensional code together reprint, this article from countercurrent fish yuiop:http://blog.csdn.net/hejjunlin/article/details/52637333Background: Received a public contribution, "Reference from

IOS Application Development: What is ARC?

What is ARC? Change Point Benefits of using ARC Poor Basic ARC rules Objective-C object Reference keywords Summary At the beginning of the new year, Vientiane was updated. From the beginning of the new year, let's take a closer look at

"Pick Up the Flowers" Memory (ii) Java memory Recycling

In the previous log ("to pick Up" memory (a) Java memory allocation), the JVM memory consists of program counter, virtual machine stack, local method Stack, GC heap, five parts of the method area. Where the GC heap is a multi-threaded shared area,

What is arc? Ios5, xcode 4.2

From http://www.yifeiyang.net/development-of-the-iphone-simply-1/ At the beginning of the new year, Vientiane was updated. From the beginning of the new year, let's take a closer look at the iPhone development. First, let's take a look at arc.

Total Pages: 15 1 2 3 4 5 6 .... 15 Go to: Go

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.