Created
March 7, 2018 07:09
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通过 resolveInstanceMethod: 解决无法找到selector导致的奔溃。
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| #import <Foundation/Foundation.h> | |
| @interface MisImp : NSObject | |
| - (void)foo; | |
| + (void)fooMethod; | |
| @end | |
| #import "MisImp.h" | |
| #import <objc/runtime.h> | |
| void dynamicMethodIMP(id self, SEL _cmd) { | |
| NSLog(@"😄 dynamicMethodIMP"); | |
| } | |
| void classDynamicMethodIMP(id self, SEL _cmd) { | |
| NSLog(@"😄 classDynamicMethodIMP"); | |
| } | |
| @implementation MisImp | |
| + (BOOL)resolveInstanceMethod:(SEL)sel { | |
| if (sel == @selector(foo)) { | |
| class_addMethod([self class], sel, (IMP)dynamicMethodIMP, "v@:"); | |
| return YES; | |
| } | |
| return [super resolveInstanceMethod:sel]; | |
| } | |
| + (BOOL)resolveClassMethod:(SEL)sel{ | |
| Class metaClass = objc_getMetaClass(class_getName(self)); | |
| if (sel == @selector(fooMethod)) { | |
| class_addMethod(metaClass, sel, (IMP)classDynamicMethodIMP, "v@:"); | |
| return YES; | |
| } | |
| return [super resolveClassMethod:sel]; | |
| } | |
| @end |
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