UIView 类中的内存泄漏

Question

我已经使用以下代码创建了自定义 UIView ....它运行没有问题....但是当我检查内存泄漏时...它在我发表评论的地方显示泄漏...这是 Uiview 的子类。 请帮我...

-(id) initWithLabel:(NSString*)labelName{

self = [super init];
if (self) {
    self.layer.cornerRadius=8.0f;
    self.layer.borderColor=[UIColor whiteColor].CGColor;
    self.layer.borderWidth=2.0f;
/*memory leaks 28.6% */ [self setBackgroundColor:[UIColor colorWithRed:51.0/255 green:51.0/255 blue:51.0/255 alpha:1]];
    [self setFrame:CGRectMake(86, 168, 160, 77)];
    [self setAlpha:1];

    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 28, 75, 21)];
    [label setBackgroundColor:[UIColor  clearColor]];
    [label setTextAlignment:UITextAlignmentLeft];
    [label setTextColor:[UIColor whiteColor]];
    [label setFont:[UIFont fontWithName:@"Helvetica" size:17]];//memory leak 57%
    [label setText:labelName];
    [label setOpaque:NO];//memory leak
    [self addSubview:label];
    [label release];

    UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(108, 22, 37, 37)];
    [activityIndicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhiteLarge];
    [activityIndicator setBackgroundColor:[UIColor clearColor]];
    [activityIndicator setHidesWhenStopped:YES];
    [self addSubview:activityIndicator];
    [activityIndicator release];
}
return self;

}

Answer 1

试试这个

  UIColor *myColor = [[UIColor alloc] initWithRed:51.0/255 green:51.0/255 blue:51.0/255 alpha:1];

  [self setBackgroundColor:myColor];

  [myColor release];

嘿伙计，这不是内存泄漏。那是自动释放的对象。所以不要担心它们。苹果不会拒绝你的。条件是如果你使用alloc，init，new或retain，那么只有你有责任释放。所以离开它。否则就像上面的alloc和init一样释放它。就这样