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[操作系统]【代码笔记】切换条

一,效果图。

二,工程图。

三,代码。

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController@end

 

RootViewController.m

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#import "RootViewController.h"#import "TopIndexForMoreButton.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{  self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];  if (self) {    // Custom initialization  }  return self;}- (void)viewDidLoad{  [super viewDidLoad];  // Do any additional setup after loading the view.    //添加切换栏  TopIndexForMoreButton* topView = [[TopIndexForMoreButton alloc] initWithFrame:CGRectMake(0, 100, 0, 0) delegate:self];  [self.view addSubview:topView];  }- (void)didReceiveMemoryWarning{  [super didReceiveMemoryWarning];  // Dispose of any resources that can be recreated.}
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