iOS 万能跳转界面方法 (runtime实用篇一)

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@interface HSFeedsViewController : UIViewController// 注：根据下面的两个属性，可以从服务器获取对应的频道列表数据/** 频道ID */@property (nonatomic, copy) NSString *ID;/** 频道type */@property (nonatomic, copy) NSString *type;@end

跳转界面- (void)push:(NSDictionary *)params{    // 类名    NSString *class =[NSString stringWithFormat:@"%@", params[@"class"]];    const char *className = [class cStringUsingEncoding:NSASCIIStringEncoding];    // 从一个字串返回一个类    Class newClass = objc_getClass(className);    if (!newClass)    {        // 创建一个类        Class superClass = [NSObject class];        newClass = objc_allocateClassPair(superClass, className, 0);        // 注册你创建的这个类        objc_registerClassPair(newClass);    }    // 创建对象    id instance = [[newClass alloc] init];    // 对该对象赋值属性    NSDictionary * propertys = params[@"property"];    [propertys enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {        // 检测这个对象是否存在该属性        if ([self checkIsExistPropertyWithInstance:instance verifyPropertyName:key]) {            // 利用kvc赋值            [instance setValue:obj forKey:key];        }    }];    // 获取导航控制器    UITabBarController *tabVC = (UITabBarController *)self.window.rootViewController;    UINavigationController *pushClassStance = (UINavigationController *)tabVC.viewControllers[tabVC.selectedIndex];    // 跳转到对应的控制器    [pushClassStance pushViewController:instance animated:YES];}

- (BOOL)checkIsExistPropertyWithInstance:(id)instance verifyPropertyName:(NSString *)verifyPropertyName{    unsigned int outCount, i;    // 获取对象里的属性列表    objc_property_t * properties = class_copyPropertyList([instance                                                           class], &outCount);    for (i = 0; i < outCount; i++) {        objc_property_t property =properties[i];        //  属性名转成字符串        NSString *propertyName = [[NSString alloc] initWithCString:property_getName(property) encoding:NSUTF8StringEncoding];        // 判断该属性是否存在        if ([propertyName isEqualToString:verifyPropertyName]) {            free(properties);            return YES;        }    }    free(properties);    return NO;}

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