Objective-C中的构造方法 [英] Constructor in Objective-C

问题描述

我已经创建了我的iPhone应用程序，但是有问题。
我有一个 classViewController 在其中实现了我的程序。
我必须分配3个 NSMutableArray ，但是我不想在grapich方法中这样做。
我的课程中没有像Java这样的构造函数吗？

I have created my iPhone apps but I have a problem. I have a classViewController where I have implemented my program. I must alloc 3 NSMutableArray but I don't want do it in grapich methods. There isn't a constructor like Java for my class?

// I want put it in a method like constructor java

arrayPosition = [[NSMutableArray alloc] init];
currentPositionName = [NSString stringWithFormat:@"noPosition"];

推荐答案

是的，有一个初始化程序。它叫做 -init ，它有点像这样：

Yes, there is an initializer. It's called -init, and it goes a little something like this:

- (id) init {
  self = [super init];
  if (self != nil) {
    // initializations go here.
  }
  return self;
}

编辑：不要忘记 -dealloc ，。

- (void)dealloc {
  // release owned objects here
  [super dealloc]; // pretty important.
}

请注意，在代码中使用本地语言通常是不好的举动，您通常希望坚持使用英语，尤其是在在线寻求帮助时。

As a side note, using native language in code is generally a bad move, you usually want to stick to English, particularly when asking for help online and the like.

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