xcode 什么时候调用 initWithCoder？
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When does initWithCoder get called?
提问by node ninja
This will load an array
这将加载一个数组
- (id)initWithCoder:(NSCoder*) coder
{
self = [super initWithCoder: coder];
if (self) {
myArray=[coder decodeObjectForKey:@"myArray"];
}
return self;
}
What is the code that will call this function so that the array can be loaded?
调用此函数以便加载数组的代码是什么？
回答by DarkDust
The initWithCoder:methods are used for deserializing using NSCoding protocol, e.g. via [NSKeyedUnarchiver unarchiveObjectWithFile:]. For details see the Archives and Serializations Programming Guide, especially the Encoding and Decoding Objectssection.
这些initWithCoder:方法用于使用NSCoding 协议进行反序列化，例如通过[NSKeyedUnarchiver unarchiveObjectWithFile:]。有关详细信息，请参阅存档和序列化编程指南，尤其是编码和解码对象部分。
回答by Max Seelemann
As DarkDust said, it's called when a NSUnarchiver or a NSKeyedUnarchiver is used. However, this is not necessarily the own case. One could actually implement a custom NSCoder and according NSDecoder .. e.g. to encode/decode yaml etc...
正如 DarkDust 所说，当使用 NSUnarchiver 或 NSKeyedUnarchiver 时会调用它。然而，这不一定是自己的情况。实际上可以实现自定义 NSCoder 并根据 NSDecoder .. 例如编码/解码 yaml 等...
The most common use case is when loading nib files, as those contents are archived.
最常见的用例是加载 nib 文件时，因为这些内容已存档。
