How to resolve 'Potential Leak' issue
I am using the 'analyze' tool in xcode to check for potential leakages in my app. I am getting the following warning as a result. How do I resolve the potential leak shown above? "self.answerArray" is just an array I declared in my header file |
解决 :
You've called mutableCopy
on the array (which returns a new array with a retain count of +1 - You own it), and you assign it to a property (which I assume is a strong/retain property) and you're not releasing it. You're leaking the memory.
You should release tempArray
after assigning it to the property - and ensure the property is released in your class' dealloc
method.
这个项目中遇到类似的问题
if (self.newsList) {
for (int count = 0; count < [ self.newsList count]; count ++) {
self.currentRecord = [ self.newsList objectAtIndex:count];
if ([[[self.currentRecord .personVOList objectForKey:@"pk"] stringValue] isEqualToString:((KidsAppDelegate*)[[UIApplication sharedApplication]delegate]).currentKidPK]) {
NSMutableArray * localArray = [((KidsAppDelegate*)[[UIApplication sharedApplication]delegate]).currentKidNewsList mutableCopy];
self.currentNewsList = localArray; //或者书写为
self.currentNewsList = [((KidsAppDelegate*)[[UIApplication sharedApplication]delegate]).currentKidNewsList mutableCopy];
都会有以上的问题存在
break;
}
}
}
修改方式:
if (self.newsList) {
for (int count = 0; count < [ self.newsList count]; count ++) {
self.currentRecord = [ self.newsList objectAtIndex:count];
if ([[[self.currentRecord .personVOList objectForKey:@"pk"]
stringValue] isEqualToString:((KidsAppDelegate*)[[UIApplication
sharedApplication]delegate]).currentKidPK]) {
NSMutableArray * localArray = [((KidsAppDelegate*)[[UIApplication sharedApplication]delegate]).currentKidNewsList mutableCopy];
self.currentNewsList = localArray; //或者书写为
[localArray release];或者
NSMutableArray * localArray = [[((KidsAppDelegate*)[[UIApplication sharedApplication]delegate]).currentKidNewsList mutableCopy] autorelease];
break;
}
}
}
How to resolve 'Potential Leak' issue的更多相关文章
- A memory leak issue with WPF Command Binding
Background In our application, we have a screen which hosts several tabs. In each tab, it contains a ...
- iOS 错误 之 Potential leak of an object stored into 'cs'
存储到 “cs”的对象存在潜在的泄露
- Resolve Missing artifact Issue in maven
https://jingyan.baidu.com/article/d621e8da0a5b192864913f79.html
- RocketMQ 源码学习笔记————Producer 是怎么将消息发送至 Broker 的?
目录 RocketMQ 源码学习笔记----Producer 是怎么将消息发送至 Broker 的? 前言 项目结构 rocketmq-client 模块 DefaultMQProducerTest ...
- RocketMQ 源码学习笔记 Producer 是怎么将消息发送至 Broker 的?
目录 RocketMQ 源码学习笔记 Producer 是怎么将消息发送至 Broker 的? 前言 项目结构 rocketmq-client 模块 DefaultMQProducerTest Roc ...
- RocketMQ(二):producer客户端实践
MQ解耦了生产者和消费者,前提是有一个稳定强大的消息服务,我们只管与之通信即可. 所以,和MqServer通信是什么样的?难否? 0. 发送端demo /** * This class demonst ...
- SilverLight - Memory Leak
There is a memory leak issue in current silverlight project. It occurs in the search function: the m ...
- Use UMDH to identify memory leak problem
We sometimes got memory leak problem, and we need to find the leaked memory, Here is a usful tool fr ...
- Android Lint Checks
Android Lint Checks Here are the current list of checks that lint performs as of Android Studio 2.3 ...
随机推荐
- Life is short.,You need Python
真棒Python https://awesome-python.com/ 精选的Python框架,库,软件和资源的精选列表. 灵感来自awesome-php. 真棒Python 管理员面板 算法和设 ...
- 条款38:通过复合塑模has-a或“根据某物实现出”
NOTE: 1.复合(composition)的意义和public继承完全不同. 2.在应用域(application domain),复合意味 has-a(有一个). 在实现域(implementa ...
- InnoDB体系架构总结(二)
事务 确保事务内的SQL都可以同步执行 要么一起成功 要么一起失败.事务有四个特性原子性 一致性,隔离性,持久性 实现方式 开始事务的时候回家记录记录一个LSN日志序列 当事务执行的时候 会首先在In ...
- Python中怎么进行单元测试
既然是测试,那我们得有被测试的代码,我们先定义一个简单的函数,这个函数的功能就是接收一个姓名,并返回一句问候语句. say_hello_function.py def hello_name(name) ...
- JavaScript正则表达式-边界符
^:表示字符串开始位置,在多行匹配中表示一行的开始位置. /^\w+/匹配字符串中第一个单词. $:表示字符串结束的位置,在多行匹配中表示一行的结束位置. /\w+$/匹配字符串中最后一个单词. /@ ...
- Luogu 3423 [POI 2005]BAN-银行票据 (多重背包单调队列优化 + 方案打印)
题意: 给出 n 种纸币的面值以及数量,求最少使用多少张纸币能凑成 M 的面额. 细节: 好像是要输出方案,看来很是头疼啊. 分析: 多重背包,裸体??? 咳咳,好吧需要低调,状态就出来了: dp [ ...
- 关于logging模块重复问题
logger对象配置 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 import logging # 获取一个新日志logger = ...
- HTML、CSS知识点总结_D
一,html+css基础 1-1 Html和CSS的关系 学习web前端开发基础技术需要掌握:HTML.CSS.JavaScript语言.下面我们就来了解下这三门技术都是用来实现什么的: 1. HTM ...
- 【01】let和const命令
let和const命令 魔芋总结: 01,let声明变量,只在代码块{}内有效. 02,不存在变量提升,只能先声明,再使用.否则报错. 03,暂时性死区 如果代码块中存在let和const声明的变 ...
- zabbix的配置之新版微信报警(二)
zabbix配置2018版本微信报警 centos6.5中微信报警需要Python2.7版本之上,由于服务器是centos6.5.所以需要升级版本2.6到2.7. 具体升级步骤:Python升级版本2 ...