IOS memory optimization experience

DiscussionIOS Memory OptimizationExperience is the content to be introduced in this article.IOSOfMemory OptimizationSolution. Let's look at the details first.

First, make sure that each retain, copy, and delloc has a release

1. CT... Create... is used to release CTRelease (myObject); CF is also true.

2. The following return is not released either.

 
 

  
  
CTParagraphStyleRef paragraphStyle = CTParagraphStyleCreate (paragraphStyle_settings,
  
  
Sizeof (paragraphStyle_settings)/sizeof (paragraphStyle_settings [0]);
  
  

  
  
If (...)
  
  
{
  
  
<SPAN style = "WHITE-SPACE: pre"> </SPAN> return; // Overflow
  
  
}
  
  
CTRelease (paragraphStyle );
  
  
CTParagraphStyleRef paragraphStyle = CTParagraphStyleCreate (paragraphStyle_settings,
  
  
Sizeof (paragraphStyle_settings)/sizeof (paragraphStyle_settings [0]);
  
  
If (...)
  
  
{
  
  
Return; // Overflow
  
  
}
  
  
CTRelease (paragraphStyle );
 
 

3. Sometimes NSMutableArray mutableCopy overflows.

 
 

  
  
NSMutableArray * mutableRecents = [NSMutableArray arrayWithArray: recentSearches];
  
  
// NSMutableArray * mutableRecents = [recentSearches mutableCopy]; memory overflow
  
  
[MutableRecents removeObject: searchString];
  
  
NSMutableArray * mutableRecents = [NSMutableArray arrayWithArray: recentSearches];
  
  
// NSMutableArray * mutableRecents = [recentSearches mutableCopy]; memory overflow
  
  
[MutableRecents removeObject: searchString];
 
 

4. Most memory overflow in dealloc is caused by improper initialization of init or initWithFrame.

5: Check the memory overflow with the simulator under the Instrument, and then use the Instrument to connect the real machine.

Summary:IOS Memory OptimizationI hope this article will help you!