func class_getInstanceMethod(AnyClass?, Selector) -> Method? func class_getClassMethod(AnyClass?, Selector) -> Method? func class_copyMethodList(AnyClass?, UnsafeMutablePointer<UInt32>?) -> UnsafeMutablePointer<Method>? func class_replaceMethod(AnyClass?, Selector, IMP, UnsafePointer<CChar>...
Example:Java Currency class: getInstance() Method importjava.util.*;importjava.util.*;publicclassMain{publicstaticvoidmain(Stringargs[]){// Create a currency object with specified currency codeCurrencycurr=Currency.getInstance("ADP");// Print currency's codeSystem.out.println("Currency code: "+cu...
voidlgInstanceMethod_classToMetaclass(ClasspClass){//获取类名constchar*className=class_getName(pClass);//元类ClassmetaClass=objc_getMetaClass(className);Methodmethod1=class_getInstanceMethod(pClass,@selector(sayHello));Methodmethod2=class_getInstanceMethod(metaClass,@selector(sayHello));Methodmethod3=c...
*/OBJC_EXPORT Methodclass_getInstanceMethod(Classcls,SEL name)__OSX_AVAILABLE_STARTING(__MAC_10_0,__IPHONE_2_0);/** * Returns a pointer to the data structure describing a given class method for a given class. * * @param cls A pointer to a class definition. Pass the class that cont...
.reflect.Method.invoke(Method.java:597) at com.tuan.util.DynClassLoader.callMethod(DynClassLoader.java:59) at ParserTester.main(ParserTester.java:83)java.lang.NullPointerException at com.tuan.parser.AreaRecognize.<init>(AreaRecognize.java:34) at com.tuan.parser.AreaRecognize.getInstance(Area...
class_getInstanceMethod Returns a specified instance method for a given class. iOS 2.0+iPadOS 2.0+Mac Catalyst 13.1+macOS 10.0+tvOS 9.0+visionOS 1.0+watchOS 1.0+ externMethodclass_getInstanceMethod(Classcls,SELname); Parameters cls The class you want to inspect. ...
class_getInstanceMethod(Class _Nullable cls,SEL _Nonnull name)OBJC_AVAILABLE(10.0,2.0,9.0,1.0,2.0); 由Api说明可知,当前类查找不到该SEL时,会在父类中查找 2. Runtime 源码 /*** * class_getInstanceMethod. Return the instance method for the * specified class and selector. ***/Method...
当我们调用 这个方法,来查找某个类的实力的方法的时候,我们看看都干了什么事,其实 objc_msgSend 还有 class_getClassMethod 是一样的道理,最后都会调到这里,只不过可能前面不同,比如 objc_msgSend,会调用汇编的方法 Methodclass_getInstanceMethod(Class cls,SEL sel){if(!cls||!sel)returnnil;// This deliber...
class_getInstanceMethod得到类的实例方法 class_getClassMethod得到类的类方法 /** * Returns a specified instance method for a given class. * * @param cls The class you want to inspect. * @param name The selector of the method you want to retrieve. * * @return The method that corresponds ...