I've a String who's value is the name of the Class[MyClass] which has to be instantiated, and MyClass has a method called
我有一个字符串，它的值是必须实例化的类[MyClass]的名称，而MyClass有一个名为
-(void)FunctionInClass;
i'm using the method called NSClassFromString to instantiate MyClass.I want to know
我正在使用名为NSClassFromString的方法来实例化MyClass。我想知道
1) what does NSClassFromString return??
2) what is id?
3) How to call method -(void)FunctioninClass which is in MyClass using the instance.
how should i proceed , i'm doing it in Objective-C for iPhone app?
我该怎么办，我是在Objective-C for iPhone app中做的？
1 个解决方案
#1
51
1) what does NSClassFromString return??
1）NSClassFromString返回什么？
It returns a Class, which means you can do [[NSClassFromString(@"MyClass") alloc] init]; see Mac Dev Center Docs for more info.
它返回一个Class，这意味着你可以[[NSClassFromString（@“MyClass”）alloc] init];有关详细信息，请参阅Mac Dev Center Docs。
2) what is id?
2）什么是id？
See http://www.otierney.net/objective-c.html#idtype
见http://www.otierney.net/objective-c.html#idtype
3) How to call method -(void)FunctioninClass which is in MyClass using the instance.
3）如何调用方法 - （void）使用实例在MyClass中的FunctioninClass。
id myclass = [[NSClassFromString(@"MyClass") alloc] init];
[myclass FunctioninClass];
#1
51
1) what does NSClassFromString return??
1）NSClassFromString返回什么？
It returns a Class, which means you can do [[NSClassFromString(@"MyClass") alloc] init]; see Mac Dev Center Docs for more info.
它返回一个Class，这意味着你可以[[NSClassFromString（@“MyClass”）alloc] init];有关详细信息，请参阅Mac Dev Center Docs。
2) what is id?
2）什么是id？
See http://www.otierney.net/objective-c.html#idtype
见http://www.otierney.net/objective-c.html#idtype
3) How to call method -(void)FunctioninClass which is in MyClass using the instance.
3）如何调用方法 - （void）使用实例在MyClass中的FunctioninClass。
id myclass = [[NSClassFromString(@"MyClass") alloc] init];
[myclass FunctioninClass];