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这是关于使用Cocoa数组时的内存管理和最佳实践的一般问题。填充NSArray/NSMutableArray,正确的方法
下列哪项是 “更好”:
NSArray *pageControllers = [[NSArray alloc] initWithObjects:
[[Page1 alloc] initWithNibName:@"Page1" bundle:nil],
[[Page2 alloc] initWithNibName:@"Page2" bundle:nil],
[[Page3 alloc] initWithNibName:@"Page3" bundle:nil],
nil];
...then release NSArray later when not needed anymore...
或者
NSMutableArray *pageControllers = [[NSMutableArray alloc] init];
UIViewController *page1 = [[Page1 alloc] initWithNibName:@"Page1" bundle:nil];
[pageControllers addObject:page1];
[page1 release];
UIViewController *page2 = [[Page2 alloc] initWithNibName:@"Page2" bundle:nil];
[pageControllers addObject:page2];
[page2 release];
UIViewController *page3 = [[Page3 alloc] initWithNibName:@"Page3" bundle:nil];
[pageControllers addObject:page3];
[page3 release];
...then release NSMutableArray later when not needed anymore...
或者是有别的,甚至更好?
谢谢。那么我会继续第二个例子。 – RyJ 2010-07-13 21:58:14
那么,如果你记得自动释放页面或者将它们的指针存储到一个变量中,并且在创建数组之后调用'release',那么第一个示例将不会泄漏。一般来说,对于简单的,非动态的东西,我会去不可变的路线,但它确实无关紧要。 – Wevah 2010-07-14 02:36:57