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我開發了我的iPhone應用程序，現在我正在用儀器測試它以發現內存泄漏。任何人都可以識別泄漏，幫助？
我有我的AppDelegate類中，我從網絡服務中獲取數據，然後分析它，然後將它存儲在陣列..
這裏是我的applicationDidFinishLaunching方法：
UIApplication* app = [UIApplication sharedApplication];
app.networkActivityIndicatorVisible = YES;
serviceURL = [[NSUserDefaults standardUserDefaults] stringForKey:@"readOnly_key"];
NSLog(@"text = %@",serviceURL);
if(serviceURL == nil)
{
//We set the default values from the settings bundle.
//Get the bundle path
NSString *bPath = [[NSBundle mainBundle] bundlePath];
NSString *settingsPath = [bPath stringByAppendingPathComponent:@"Settings.bundle"];
NSString *plistFile = [settingsPath stringByAppendingPathComponent:@"Root.plist"];
NSDictionary *settingsDictionary = [NSDictionary dictionaryWithContentsOfFile:plistFile];
NSArray *preferencesArray = [settingsDictionary objectForKey:@"PreferenceSpecifiers"];
NSDictionary *item;
NSString *textEntry_Key;
NSString *readOnly_Key;
for(item in preferencesArray)
{
//Get the key of the item.
NSString *keyValue = [item objectForKey:@"Key"];
//Get the default value specified in the plist file.
id defaultValue = [item objectForKey:@"DefaultValue"];
if([keyValue isEqualToString:@"textEntry_key"]){
textEntry_Key = defaultValue;
}
NSLog(@"default value = %@",defaultValue);
if([keyValue isEqualToString:@"readOnly_key"])
readOnly_Key = defaultValue;
}
//Now that we have all the default values.
//We will create it here.
NSDictionary *appPrerfs = [NSDictionary dictionaryWithObjectsAndKeys:
textEntry_Key, @"textEntry_key",
readOnly_Key, @"readOnly_key",
nil];
[[NSUserDefaults standardUserDefaults] registerDefaults:appPrerfs];
[[NSUserDefaults standardUserDefaults] synchronize];
}
NSURL *url5 = [[NSURL alloc] initWithString:@"http://192.168.0.150/Nirmal/Service.asmx/searchParameterList"];
//NSURL *url5 = [[NSURL alloc] initWithString:[NSString stringWithFormat:@"%@/Service.asmx/searchParameterList"]];
NSMutableURLRequest* request6=[NSMutableURLRequest requestWithURL:url5];
[request6 setHTTPMethod:@"POST"];
[request6 setTimeoutInterval:10];
//NSURLResponse *response6=nil;
// NSError *err6=nil;
//NSData *data6=[[NSURLConnection sendSynchronousRequest:request6 returningResponse:&response6 error:&err6] retain];
data2=[NSURLConnection sendSynchronousRequest:request6 returningResponse:nil error:nil];
if(data2 == nil)
{
UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"Alert" message:@"The network is not available.\n Please check the Internet connection." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
[alert release];
}
else
{
NSXMLParser *xmlParser5 = [[NSXMLParser alloc] initWithData:data2];
//Initialize the delegate.
SearchParameterDataParser *searchParameterDataParser = [[SearchParameterDataParser alloc] initSearchParameterDataParser];
//Set delegate
[xmlParser5 setDelegate:searchParameterDataParser];
//Start parsing the XML file.
@try {
// **the leakage line**
BOOL success1 = [xmlParser5 parse];
if(success1)
NSLog(@"No Errors");
else
NSLog(@"Error Error Error!!!");
}
@catch (NSException * e) {
NSLog(@"Exception in parsing %@ %@",[e name], [e reason]);
}
//[xmlParser5 release];
[searchParameterDataParser release];
//[xmlParser5 release]; //leakage
}
[data2 release];
，這是我的語法分析器類：
#import "SearchParameterDataParser.h"
#import "AppDelegate.h"
#import "SearchClass.h"
@implementation SearchParameterDataParser
-(SearchParameterDataParser *)initSearchParameterDataParser{
[super init];
appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
return self;
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName
attributes:(NSDictionary *)attributeDict {
if([elementName isEqualToString:@"SearchClass"]) {
[appDelegate.tempArray release];
appDelegate.tempArray = [[NSMutableArray alloc] init];
appDelegate.aSearchClass = [[SearchClass alloc]init];
}
NSLog(@"Processing Element: %@", elementName);
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if(!currentElementValue){
[currentElementValue release];
currentElementValue = [[NSMutableString alloc] initWithString:string];
}
else
[currentElementValue appendString:string];
NSLog(@"Processing Value: %@", currentElementValue);
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if([elementName isEqualToString:@"SearchClass"]){
[appDelegate.tempArray addObject:appDelegate.aSearchClass];
return;
}
else
[appDelegate.aSearchClass setValue:currentElementValue forKey:elementName];
// [currentElementValue release];
currentElementValue = nil;
}
- (void) dealloc {
[super dealloc];
[aSearchClass release];
[currentElementValue release];
//[self release];
}
@end
我在代碼中指定了泄漏線。
誰能告訴我哪裏出了問題，或者我該如何解決內存泄露???????
我知道tempArray不是一個好名字。但現在我已經接受了appDelegate，因爲我正在將所有數據加載到applicationDidDinishLaunching中，因此我在解析器類 中使用了該變量並且與[currentElementValue release]有關; 和[data2發佈]，我已經發布了，因爲我對內存修復知之甚少，但無論我在哪裏通過儀器重定向，我都試圖通過釋放對象來解決泄漏問題，因爲我認爲它沒有發佈。 。如果有進一步的建議，歡迎 – harshalb 2009-11-04 12:15:52