ios給系統添加分類管理屬性

swift 測試

import UIKit import ObjectiveCstruct MDTableConst{static let associatedKey = UnsafeRawPointer.init(bitPattern: "MDTableAccessoryKey".hashValue) } public extension UITableView{/*var manager:TableManager?{get{return objc_getAssociatedObject(self,MDTableConst.associatedKey!) as? TableManager}set{newValue?.bindTo(tableView: self)objc_setAssociatedObject(self, MDTableConst.associatedKey!, newValue, .OBJC_ASSOCIATION_RETAIN)}}*/ }

oc

@interface UIViewController (AddPropertyInCategory) @property(nonatomic,assign)id test_assign; @property(nonatomic,strong)UIView *testView_Strong; @end #import "UIViewController+AddPropertyInCategory.h" #import <objc/runtime.h> static const void *test_assginKey = &test_assginKey; static const void *test_strongKey = &test_strongKey; @implementation UIViewController (AddPropertyInCategory) - (id)test_assign{return objc_getAssociatedObject(self, test_assginKey); }- (void)setTest_assign:(id)test_assign{objc_setAssociatedObject(self, test_assginKey, test_assign, OBJC_ASSOCIATION_ASSIGN); }- (UIView *)testView_Strong{return objc_getAssociatedObject(self, test_strongKey); } - (void)setTestView_Strong:(UIView *)testView_Strong{objc_setAssociatedObject(self, test_strongKey, testView_Strong, OBJC_ASSOCIATION_RETAIN_NONATOMIC); } @end

調用

#import "Test1VC.h" #import "UIViewController+AddPropertyInCategory.h"@implementation ViewController - (void)viewDidLoad {[super viewDidLoad];Test1VC *testVc = [[Test1VC alloc]init];UIView *iv = [[UIView alloc] init];iv.backgroundColor = UIColor.redColor;testVc.testView_Strong = iv; }

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