是否有任何通用
方法来修复 ios 应用程序中的这种内存泄漏。
我正在从服务器获取 5000 张图像，然后将其保存在文档目录中，同时将它们的路径保存在核心数据中。
这是代码
-(void)connectionDidFinishLoading:(NSURLConnectionWithTag *)connection
{
NSNumber* nn66 = [NSNumber numberWithInt:2];
if ([nn66 isEqualToNumber:connection.tag])
{
NSXMLDocument* rElement = [[NSXMLDocument alloc] initWithData:[dataFromConnectionsByTag objectForKey:connection.tag] options:0 error:nil];
NSXMLElement* element = [rElement rootElement];
NSArray* shadowElement3 = [element elementsForName:@"PRODUCT_NAME"];
for (int i = 0; i < [shadowElement3 count]; i++)
{
@autoreleasepool
{
NSMutableArray* array = [[NSMutableArray alloc] init];
Product* failedBankInfo = [NSEntityDescription insertNewObjectForEntityForName:@"Product" inManagedObjectContext:context];
NSXMLElement* element11 = [shadowElement3 objectAtIndex:i];
NSString* strPath = [element11 stringValueForNode:@"B1_COD"];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:strPath];
[array addObject:savedImagePath];
if (getimages == NO)
{
//**************************************************
NSData* receivedData = [NSData dataWithContentsOfURL:[NSURL URLWithString:[element11 stringValueForNode:@"img"]]];
[receivedData writeToFile:savedImagePath atomically:YES];
//**************************************************
//**************************************************
int testNo = ((i+1)*100)/[shadowElement3 count];
NSMutableDictionary* dic = [[NSMutableDictionary alloc] initWithDictionary:[tableDataArray objectAtIndex:lineNo]];
[dic setObject:[NSString stringWithFormat:@"%d",[[NSNumber numberWithInt:testNo] intValue]] forKey:@"status"];
[dic setObject:[NSString stringWithFormat:@"%@",[self onlyDateFromDate:[NSDate date]]] forKey:@"syncDate"];
[dic setObject:[NSString stringWithFormat:@"%d/%d",[[NSNumber numberWithInt:i+1] intValue],[[NSNumber numberWithInt:[shadowElement3 count]] intValue]] forKey:@"totalloaded"];
[tableDataArray replaceObjectAtIndex:lineNo withObject:dic];
[[NSUserDefaults standardUserDefaults] removeObjectForKey:@"settingdata"];
[[NSUserDefaults standardUserDefaults] setObject:tableDataArray forKey:@"settingdata"];
[_mtable reloadData];
// [self performSelectorInBackground:@selector(ricaelleupdatecompleted:) withObject:dic];
[NSThread detachNewThreadSelector:@selector(ricaelleupdatecompleted:) toTarget:self withObject:dic];
//**************************************************
}
else
{
NSString* newImagePath = [NSString stringWithFormat:@"%@_t",strPath];
NSString *savedImagePath1 = [documentsDirectory stringByAppendingPathComponent:newImagePath];
[array addObject:savedImagePath1];
int testNo = ((i+1)*100)/[shadowElement3 count];
NSMutableDictionary* dic = [[NSMutableDictionary alloc] initWithCapacity:0];
[dic setObject:[NSString stringWithFormat:@"%d%@ Completo",[[NSNumber numberWithInt:testNo] intValue],@"%"] forKey:@"status"];
[dic setObject:[NSString stringWithFormat:@"%@",[self onlyDateFromDate:[NSDate date]]] forKey:@"syncDate"];
[dic setObject:[NSString stringWithFormat:@"%d/%d",[[NSNumber numberWithInt:i+1] intValue],[[NSNumber numberWithInt:[shadowElement3 count]] intValue]] forKey:@"totalloaded"];
[NSThread detachNewThreadSelector:@selector(allimagesCompleted:) toTarget:self withObject:dic];
}
failedBankInfo.images = array;
failedBankInfo.DA1_FILIAL = [element11 stringValueForNode:@"DA1_FILIAL"];
failedBankInfo.DA1_CODTAB = [element11 stringValueForNode:@"DA1_CODTAB"];
failedBankInfo.DA1_CODPRO = [element11 stringValueForNode:@"DA1_CODPRO"];
failedBankInfo.DA1_ITEM = [element11 stringValueForNode:@"DA1_ITEM"];
failedBankInfo.DA1_PRCVEN = @"100"; //[element11 stringValueForNode:@"DA1_PRCVEN"];
failedBankInfo.DA1_X_PROM = @"10"; //[element11 stringValueForNode:@"DA1_X_PROM"];
failedBankInfo.DA1_X_ALTE = [element11 stringValueForNode:@"DA1_X_ALTE"];
failedBankInfo.DA1_X_PRFI = [element11 stringValueForNode:@"DA1_X_PRFI"];
failedBankInfo.B2_FILIAL = [element11 stringValueForNode:@"B2_FILIAL"];
failedBankInfo.B2_COD = [element11 stringValueForNode:@"B2_COD"];
failedBankInfo.B2_LOCAL = [element11 stringValueForNode:@"B2_LOCAL"];
failedBankInfo.B2_QATU = @"25";// [element11 stringValueForNode:@"B2_QATU"];
failedBankInfo.B1_FILIAL = [element11 stringValueForNode:@"B1_FILIAL"];
failedBankInfo.B1_COD = [element11 stringValueForNode:@"B1_COD"];
failedBankInfo.B1_DESC = strPath;
failedBankInfo.B1_TIPO = [element11 stringValueForNode:@"B1_TIPO"];
failedBankInfo.B1_UM = [element11 stringValueForNode:@"B1_UM"];
failedBankInfo.B1_LOCPAD = [element11 stringValueForNode:@"B1_LOCPAD"];
failedBankInfo.B1_GRUPO = [element11 stringValueForNode:@"B1_GRUPO"];
failedBankInfo.B1_IPI = [element11 stringValueForNode:@"B1_IPI"];
failedBankInfo.B1_POSIPI = [element11 stringValueForNode:@"B1_POSIPI"];
failedBankInfo.B1_ALTER = [element11 stringValueForNode:@"B1_ALTER"];
failedBankInfo.B1_X_ALT_P = [element11 stringValueForNode:@"B1_X_ALT_P"];
failedBankInfo.B1_X_LAR_P = [element11 stringValueForNode:@"B1_X_LAR_P"];
failedBankInfo.B1_X_COM_P = [element11 stringValueForNode:@"B1_X_COM_P"];
failedBankInfo.B1_PESO = [element11 stringValueForNode:@"B1_PESO"];
failedBankInfo.B1_PESBRU = [element11 stringValueForNode:@"B1_PESBRU"];
failedBankInfo.B1_X_ALT_C = [element11 stringValueForNode:@"B1_X_ALT_C"];
failedBankInfo.B1_X_LAR_C = [element11 stringValueForNode:@"B1_X_LAR_C"];
failedBankInfo.B1_X_COM_C = [element11 stringValueForNode:@"B1_X_COM_C"];
failedBankInfo.B1_X_DIA_P = [element11 stringValueForNode:@"B1_X_DIA_P"];
failedBankInfo.B1_X_DIA_C = [element11 stringValueForNode:@"B1_X_DIA_C"];
failedBankInfo.B1_X_PLI_C = [element11 stringValueForNode:@"B1_X_PLI_C"];
failedBankInfo.B1_X_PBR_C = [element11 stringValueForNode:@"B1_X_PBR_C"];
failedBankInfo.B1_X_ALT_M = [element11 stringValueForNode:@"B1_X_ALT_M"];
failedBankInfo.B1_X_LAR_M = [element11 stringValueForNode:@"B1_X_LAR_M"];
failedBankInfo.B1_X_COM_M = [element11 stringValueForNode:@"B1_X_COM_M"];
failedBankInfo.B1_X_DIA_M = [element11 stringValueForNode:@"B1_X_DIA_M"];
failedBankInfo.B1_X_PBR_M = [element11 stringValueForNode:@"B1_X_PBR_M"];
failedBankInfo.B1_X_PLI_M = [element11 stringValueForNode:@"B1_X_PLI_M"];
failedBankInfo.B1_X_PGCAT = [NSNumber numberWithInt:[[element11 stringValueForNode:@"B1_X_PGCAT"] intValue]];
failedBankInfo.B1_X_CXMAS = [element11 stringValueForNode:@"B1_X_CXMAS"];
failedBankInfo.B1_CODBAR = [element11 stringValueForNode:@"B1_CODBAR"];
failedBankInfo.B1_X_DUN14 = [element11 stringValueForNode:@"B1_X_DUN14"];
failedBankInfo.B1_TS = [element11 stringValueForNode:@"B1_TS"];
failedBankInfo.B1_TE = [element11 stringValueForNode:@"B1_TE"];
failedBankInfo.B1_X_DESCR = [element11 stringValueForNode:@"B1_X_DESCR"];
failedBankInfo.B1_QE = [NSNumber numberWithInt:4]; //[[element11 stringValueForNode:@"B1_QE"] intValue]]; //[eleme
NSError *error;
if (![context save:&error])
{
NSLog(@"error occured");
}
else
{
NSLog(@"clientes Saved copupons");
}
}
}
}
[SVProgressHUD dismiss];
if (getimages == NO)
{
[SVProgressHUD showWithStatus:@"Please wait we are processing images"];
[self performSelector:@selector(complieImage) withObject:nil afterDelay:.1];
}
NSNumber* nnn = [NSNumber numberWithInt:3];
if ([connection.tag isEqualToNumber:nnn])
{
[self saveClientTableData:nnn];
}
NSNumber* nn5 = [NSNumber numberWithInt:5];
if ([nn5 isEqualToNumber:connection.tag])
{
[self saveBannerData:nn5];
}
[SVProgressHUD dismiss];
[Utils readAllCoreData];
[dataFromConnectionsByTag removeObjectForKey:connection.tag];
}