我的retainCount正在增加？ [英] My retainCount is increasing?
问题描述
我正在尝试构建rss阅读器，问题是当用户完成阅读artical并按回dealloc时不要调用
am trying here to build rss reader , the problem that when user finish read artical and press back the dealloc don't called
并且我得到了retainCount 6&有时候7 !!
and i got retainCount 6 & some times 7 !!
我有很多自定义面板
当按下后退按钮时视图被激活并且没有调用dealloc？！
when back button pressed the view is poped and no dealloc called ?!
.h文件：
@interface ArticalViewController : UIViewController<UIWebViewDelegate,UIScrollViewDelegate,UIActionSheetDelegate,ArticalBottomPanelDelegate,ArticalContentFetcherDelegate> {
UIWebView * description_;
UIActivityIndicatorView * ind_;
ArticalModel * artical_;
NSString * content;
UIButton * faceBookShareBtn_;
UIBarButtonItem * btnSharePanel_;
CustomTopToolBar * topToolbar_;
ArticalBottomPanel* articalBottomPanel_;
MovingSharePanel * movingSharePanel_;
int fontSize;
BOOL favoStatus;
ArticalContentFetcher *datafetcher_;
}
@property (nonatomic,retain) IBOutlet UIWebView * description;
@property (nonatomic,retain ) IBOutlet UIActivityIndicatorView * ind;
@property (nonatomic,retain) ArticalModel * artical;
@property (nonatomic,retain) IBOutlet UIButton * faceBookShareBtn;
@property (nonatomic,retain) IBOutlet CustomTopToolBar * topToolbar;
@property (nonatomic , retain) IBOutlet ArticalBottomPanel * articalBottomPanel;
@property (nonatomic , retain) IBOutlet MovingSharePanel * movingSharePanel;
@property (nonatomic , retain) ArticalContentFetcher *datafetcher;
-(void) loadArtical:(ArticalModel * )artical;
- (void) loadArticalContentFromInternet;
-(void) changeFavoriteBtnIcon:(BOOL) status;
-(void)backBtnPressed:(id) sender;
-(IBAction)openPostBtnPressed:(id)sender;
@end
.m文件：
#import "ArticalViewController.h"
@implementation ArticalViewController
@synthesize description=description_;
@synthesize artical=artical_;
@synthesize ind=ind_;
@synthesize faceBookShareBtn=faceBookShareBtn_;
@synthesize topToolbar=topToolbar_;
@synthesize articalBottomPanel=articalBottomPanel_;
@synthesize movingSharePanel=movingSharePanel_;
@synthesize datafetcher=datafetcher_;
- (void)dealloc
{
NSLog(@"ArticalViewController : dealloc");
[description_ release];
[ind_ release];
[artical_ release];
[content release];
[faceBookShareBtn_ release];
[btnSharePanel_ release];
[topToolbar_ release];
[articalBottomPanel_ release];
[movingSharePanel_ release];
[datafetcher_ release];
[super dealloc];
}
#pragma mark -
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
fontSize=100;
[self.articalBottomPanel setDelegate:self];
[self.movingSharePanel setArtical:self.artical];
[self.movingSharePanel setParentView:self];
[self.topToolbar.rightButon setFrame:CGRectMake(260 , 3, 50, 30)];
[self.topToolbar.rightButon addTarget:self action:@selector(backBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
[self.topToolbar.rightButon setImage:[UIImage imageNamed:@"back-button"] forState:UIControlStateNormal];
[self.topToolbar.leftButon setFrame:CGRectMake(10 , 3, 50, 30)];
[self.topToolbar.leftButon setImage:[UIImage imageNamed:@"button-toolbar-post-link"] forState:UIControlStateNormal];
[self.topToolbar.leftButon addTarget:self action:@selector(openPostBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
self.topToolbar.label.text =self.artical.category;
// [label release];
//Navigation Buttons
self.navigationItem.hidesBackButton=YES;
//Check if artical is favorited or not
[self changeFavoriteBtnIcon:[Favorites chechArtical:self.artical]];
[self.description setBackgroundColor:[UIColor clearColor]];
[self.description setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"1px-post-views-background"]]];
if([[self.artical content] length] >1){
NSLog(@"[[self.artical content] length] >1");
[self loadArtical:self.artical];
}else {
NSLog(@"else");
self.datafetcher=[[ArticalContentFetcher alloc ]init ];
[self.datafetcher setArticalContentFetcherDelegate:self];
[NSThread detachNewThreadSelector:@selector(loadArticalContentFromInternet) toTarget:self withObject:nil];
}
}
#pragma mark -
#pragma mark ArticalConnectionFeed Delegate Methods
-(void) articalContentConnectionDoneWithArtical:(ArticalModel *)artical {
NSLog(@"articalContentConnectionDoneWithArtical");
[self loadArtical:artical];
}
-(void) articalContentConnectionFailed{
NSLog(@"articalContentConnectionFailed");
}
#pragma mark -
#pragma mark ArticalBottomPanelDelegate Delegate Methods
-(void) openPanelFired{
NSLog(@"openPanelFired");
[self.movingSharePanel movePanel];
// [self.articalBottomPanel.btnOpenSharePanel setHidden:YES];
}
-(void) fontBtnFired:(int)font{
// NSLog(@"fontBtnFired : %d",font);
if(font==1){
[self.description stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '90%'"];
}else {
[self.description stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '-10%'"];
}
}
-(void) favoBtnFired {
NSLog(@"favoBtnFired");
favoStatus=[Favorites processArtical:self.artical];
[self changeFavoriteBtnIcon:favoStatus];
}
-(void) changeFavoriteBtnIcon:(BOOL) status{
if (status){
[self.articalBottomPanel.btnFavo setImage: [UIImage imageNamed:@"active-star.png"] forState:UIControlStateNormal];
}else {
[self.articalBottomPanel.btnFavo setImage: [UIImage imageNamed:@"star.png"] forState:UIControlStateNormal];
}
}
#pragma mark -
#pragma mark UIWebView Delegate Methods
-(BOOL) webView:(UIWebView *)inWeb shouldStartLoadWithRequest:(NSURLRequest *)inRequest navigationType:(UIWebViewNavigationType)inType {
if([InternetConnection getInternetStatus]){
if ( inType == UIWebViewNavigationTypeLinkClicked ) {
[[UIApplication sharedApplication] openURL:[inRequest URL]];
return NO;
}
return YES;
}else {
[InternetConnection ShowNoInternetAlert];
return NO;
}
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[self.ind stopAnimating];
}
#pragma mark -
#pragma mark Class Methods
-(void) loadArtical:(ArticalModel * )artical{
NSLog(@"loadArtical");
[self.artical setContent:[artical content]];
[self.artical setCategory:[artical category]];
NSString * style=[[NSString alloc ] initWithFormat:@"<style> #offline img{display:none;} .wrap{text-align:right;line-height:22px; direction:rtl;} .title{font-size:20px;margin-bottom:5px;} .date{font-size:13px;} .cat{font-size:13px;} </style>"];
if([InternetConnection getInternetStatus])
NSLog(@"[InternetConnection getInternetStatus] : true");
content=[[NSString alloc] initWithFormat:@"%@<div class='wrap' ><div class='title'>%@</div><div class='date'>%@</div><div class='cat'>%@</div>%@</div>",style,[self.artical title],[DateProcessor getInternetDateAndTimeForArticals:self.artical.pubDate],[self.artical category],[self.artical content] ];
[ self.description loadHTMLString:content baseURL:[NSURL URLWithString:@""]];
[style release];
}
- (void) loadArticalContentFromInternet{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[self.datafetcher loadArticlContentWithID:self.artical.ID];
[[NSRunLoop currentRunLoop] run ];
[pool release];
}
-(void)backBtnPressed:(id) sender{
NSLog(@"backBtnPressed");
[self.navigationController popViewControllerAnimated:YES];
}
#pragma mark -
#pragma mark IBActions
-(IBAction)openPostBtnPressed:(id)sender{
if([InternetConnection getInternetStatus]){
[InternetConnection openExternalUrl:self.artical.link];
}else{
[InternetConnection ShowNoInternetAlert];
}
}
@end
添加：
当我调用我使用的Artical时
when i was invoking the Artical i used
avc=[[ArticalViewController alloc]initWithNibName:@"ArticalViewController" bundle:nil];
avc.artical=[self.feeds objectAtIndex:indexPath.row];
[self.navCon pushViewController:avc animated:YES];
[avc release];
推荐答案
我发现跟踪保留计数的最佳方法是缺少保留释放对正在使用 Instruments 。点击个人资料（Cmd⌘ + I ）并选择泄漏模板。即使不会自动发现泄漏，也会记录保留更改，以便您可以手动跟踪其他保留。为此，请在选择分配工具时在对象摘要中查找您的班级名称。如果找不到，则表示所有实例都已取消分配。否则，请单击选择班级名称时出现的箭头：
您将看到您班级的所有生活实例：
I found that the best way to trace retain counts and missing retain-release pairs is using Instruments. Hit Profile (Cmd ⌘+I) and choose Leaks template. Even if leaks will not be discovered automatically, retain changes are logged so you can manually trace additional retains. To do that, find your class name in Object Summary when selected Allocations instrument. If you can't find it, this means that all instances were deallocated. Otherwise click on the arrow that appears when you select class name: You will see all living instances of your class:
如果您认为某些实例应已取消分配，请选择一个并单击箭头出现在对象地址旁边。现在，您应该看到在此对象上使用执行此操作的方法名称调用的任何保留或释放：
If you suppose that there are some instances that should be already deallocated, select one and click on the arrow that appeared next to object address. Now you should see any retain or release that was invoked on this object with method name that was performing this action:
RefCt 列显示调用操作后的retainCount，以及何时双击任何保留/释放，乐器将显示执行此操作的代码行：
RefCt column shows retainCount after action was invoked, and when you double click on any retain/release, instruments will show you line of code where this was performed:
如您所见，对象被添加到数组中，并且永远不会从中删除。
As you see, object is added to an array and never removed from it.
根据我的经验，这是查找 Leaks 仪器无法自动检测到的内存泄漏的最快速，最简单的方法。我认为另一个好的做法是在对象摘要中查看 #Living ，以确保生活实例的数量完全符合您的预期。
In my experience this is the fastest and easiest way to find memory leaks that Leaks instrument would not automatically detect. I think another good practice is to look at #Living in Object Summary to ensure that number of living instances are exactly as you'd expect.
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