我只是包裝了我的應用程序,所以即時通訊到運行儀器的舞臺上以識別應用程序中的泄漏。我遇到了泄漏,我無法弄清楚爲什麼它被註冊爲泄漏。Iphone子串導致內存泄漏
我有例如以下行:
NSString *imageType = [[[NSString alloc] initWithString:[loopString substringToIndex:[loopString rangeOfString:@"</IMAGE>"].location]] autorelease];
imageType = [imageType substringFromIndex:[imageType rangeOfString:@"<IMAGE>"].location + :@"<IMAGE>".length];
所以基本上所有IM做的是拉出「loopstring」,並把該進IMAGETYPE串不僅僅是切斷的尾部的絨毛部分字符串使用SubstringFromIndex方法。
當我運行儀器時它說「NSCFString substringwithRange」泄漏。它突出了下聯:
imageType = [imageType substringFromIndex:[imageType rangeOfString:@"<IMAGE>"].location + :@"<IMAGE>".length];
我會認爲substringFromIndex方法應該返回自動添加到自動釋放池的字符串。
任何想法哪裏會出錯?
感謝
以下是重構代碼:
- (void)SetupTop10:(NSString *)Top10Data
{
while (Top10Data != @"") {
NSLog(Top10Data);
if ([Top10Data rangeOfString:@"</TOP10ENTRY>"].location == NSNotFound){
Top10Data = @"";
}
else
{
NSString *loopString = [Top10Data substringToIndex:[Top10Data rangeOfString:@"</TOP10ENTRY>"].location + 13];
Top10Data = [Top10Data stringByReplacingOccurrencesOfString:loopString withString:@""];
//NOW CREATE A RECORD FOR THIS ITEM
NSString *imageType = [loopString substringToIndex:[loopString rangeOfString:@"</IMAGE>"].location];
imageType = [imageType substringFromIndex:[imageType rangeOfString:@"<IMAGE>"].location + 7];
NSString *displayText = [loopString substringToIndex:[loopString rangeOfString:@"</DISPLAYTEXT>"].location];
displayText = [displayText substringFromIndex:[displayText rangeOfString:@"<DISPLAYTEXT>"].location + 13];
NSString *link = [loopString substringToIndex:[loopString rangeOfString:@"</INTERESTID>"].location];
link = [link substringFromIndex:[link rangeOfString:@"<INTERESTID>"].location + 12];
[Top10Images addObject:imageType];
[Top10Links addObject:link];
[Top10s addObject:displayText];
Top10RowCount = Top10RowCount + 1;
}
}
[self.Top10Table reloadData];
Top10Table.hidden = NO;
loadingLabel.hidden = YES;
loadingIndicator.hidden = YES;
}
// ******************
因爲你可能會改變''Top10Data'參數的副本,不是一個好主意嗎? – Rengers 2010-08-11 18:21:46