我在这个应用程序中有3个类。
在DetailBrand2.m中发生了内存泄漏, DetailBrand2继承自DetailType, 我还有一个包装类FairPriceDatabaseView,它与sqlite3进行通信。
我对NSDictionary,NSString和Sqlite感到困惑?
泄漏发生在这条线上!!!?
NSDictionary * brandRow = [fairPrice_DB getProductRow:tempProductID];
NSString * message = [brandRow objectForKey:@“brandName”];
brandRow = nil;
我刚开始在iphone appmication中,我提前感谢任何帮助,我已经阅读了很多iphone内存管理指南,但我无法解决它。问题是我没有使用任何关键字看起来像alloc,retain,copy或mutablecopy但我在这行中有泄漏!!
此行带回一个NSDictionary,其中包含productID,productName,brandName,price。从包装类开始,fairPrice_DB是FairPriceDatabaseView的一个实例。
DetailBrand2.h
@interface DetailBrand2 : DetailType
{
NSString * topBrandName;
NSNumber * tempProductID;
NSString * brandName;
}
@property (nonatomic, retain) NSString * topBrandName;
@property (nonatomic, retain) NSString * brandName;
@property (nonatomic, retain) NSNumber * tempProductID;
-(void) loadbrandName;
@end
DetailBrand2.m
#import "DetailBrand2.h"
#import "SeventhFairPriceAppDelegate.h"
@implementation DetailBrand2
@synthesize topBrandName,brandName,tempProductID;
-(void) loadbrandName
{
if(!topBrandName)
{
[self loadDB];
*NSDictionary * brandRow = [fairPrice_DB getProductRow:tempProductID];*
NSString *message = [brandRow objectForKey:@"brandName"];
brandRow = nil;
self.topBrandName = message;
// self.brandName = self.topBrandName;
}
}
答案 0 :(得分:0)
通过覆盖dealloc方法解决问题:D
DetailBrands.m
-(void) dealloc
{
[self.tempProductID release];
[self.topBrandName release];
[self.brandName release];
[super dealloc];
}