控制广告时间

//  XMGAdViewController.m

#import "XMGAdViewController.h"
#import <AFNetworking/AFNetworking.h>
#import "XMGADItem.h"
#import <MJExtension/MJExtension.h>
#import <UIImageView+WebCache.h>
#import "XMGTabBarController.h"

@interface XMGAdViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *launchImageView;
@property (weak, nonatomic) IBOutlet UIView *adContainView;
@property (nonatomic, weak) UIImageView *adView;
@property (nonatomic, strong) XMGADItem *item;
@property (nonatomic, weak) NSTimer *timer;
@property (weak, nonatomic) IBOutlet UIButton *jumpBtn;
@end

@implementation XMGAdViewController

// 点击跳转做的事情
- (IBAction)clickJump:(id)sender {
    // 销毁广告界面,进入主框架界面
    XMGTabBarController *tabBarVc = [[XMGTabBarController alloc] init];
    [UIApplication sharedApplication].keyWindow.rootViewController = tabBarVc;

    // 干掉定时器
    [_timer invalidate];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    // 设置启动图片
    [self setupLaunchImage];

    // 加载广告数据 => 拿到活时间 => 服务器 => 查看接口文档 1.判断接口对不对 2.解析数据(w_picurl,ori_curl:跳转到广告界面,w,h) => 请求数据(AFN)
    [self loadAdData];

    // 创建定时器
    _timer =  [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timeChange) userInfo:nil repeats:YES];
}

- (void)timeChange
{
    // 倒计时
    static int i = 3;

    if (i == 0) {

        [self clickJump:nil];

    }

    i--;

    // 设置跳转按钮文字
    [_jumpBtn setTitle:[NSString stringWithFormat:@"跳转 (%d)",i] forState:UIControlStateNormal];
}

@end