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协议上的内存管理
原标题：memory management on Protocol

I 正在使用协议,并被泄漏, 这是我的代码 :

最佳回答

在您的 strategygyfromType 函数中

return [strategy autorelease];

当您调用此函数时使用 remain 

GMGridViewLayoutStrategy *strat = [[YourClassName strategyFromType:yourType] retain];

使用 strat 变量后

[strat release];
时间：2012-05-22 06:56:52
问题回答 
-(id<GMGridViewLayoutStrategy>)strategyFromType:(GMGridViewLayoutStrategyType)type
{id<GMGridViewLayoutStrategy> strategy = nil;

switch (type) {
    case GMGridViewLayoutVertical:
        strategy = [[GMGridViewLayoutVerticalStrategy alloc] init];
        break;
    case GMGridViewLayoutHorizontal:
        strategy = [[GMGridViewLayoutHorizontalStrategy alloc] init];
        break;
    case GMGridViewLayoutHorizontalPagedLTR:
        strategy = [[GMGridViewLayoutHorizontalPagedLTRStrategy alloc] init];
        break;
    case GMGridViewLayoutHorizontalPagedTTB:
        strategy = [[GMGridViewLayoutHorizontalPagedTTBStrategy alloc] init];
        break;
}

return [strategy autorelease];
}

在呼唤的一面..

GMGridViewLayoutStrategy *obj = [[YourClassName strategyFromType:yourType] retain];

在使用“obj”后释放。

时间：2012-05-22 07:06:51




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