Question

以下self.listOfCustDetail和self.listOfCustomer

中存在内存泄漏

-(void) calCustList {
    NSArray   *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString  *documentsDirectory = [paths objectAtIndex:0];  
    NSString  *plistPath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"customer.plist"];

    self.listOfCustDetail = [[[NSMutableArray alloc] init] autorelease];
    self.listOfCustomer = [[[NSMutableArray alloc] init] autorelease];
    self.customers =  [[[NSMutableDictionary alloc] initWithContentsOfFile:plistPath] autorelease];

    [self.listOfCustomer removeAllObjects];
    [self.listOfCustDetail removeAllObjects];

    [self.listOfCustomer addObject:@"新紀錄"];
    [self.listOfCustDetail addObject:@""];

    for (id key in self.customers) {
        NSString *s = [NSString stringWithFormat:@"%@,%@,%@,%@", [[self.customers objectForKey:key] objectAtIndex:0], [[self.customers objectForKey:key] objectAtIndex:1], [[self.customers objectForKey:key] objectAtIndex:2], [[self.customers objectForKey:key] objectAtIndex:3]];
        [self.listOfCustomer addObject:key];
        [self.listOfCustDetail addObject:s];
    }  
}

Answer 1

您的房产如何定义？他们保留了吗？如果他们确实保留了，那么您正在展示的代码中没有实际错误。

该方法多久被调用一次？如果经常调用它，您可以使用自定义NSAutoreleasePool。

在新的初始化数组中也不需要以下两行：

[self.listOfCustomer removeAllObjects];
[self.listOfCustDetail removeAllObjects];

您是否正在显示实际的源代码？

Answer 2

我想建议，在Project中启用ARC（自动引用计数），因为您不需要释放数组

NSArray中的内存泄漏，长时间跟踪

2 个答案: