iOS微信分享后关闭发送成功提示并返回应用

//如果点击返回app会调用这个方法
 - (void)didFinishGetUMSocialDataInViewController:(UMSocialResponseEntity *)response {
   //返回200说明分享成功 
  if (response.respOnseCode== 200) { 
      //分享成功之后弹出这个提示语 
 
      //自己添加遮罩层，并添加点击手势，方便回收提示 
      self.mask2 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreen_Width, kScreen_Height)]; 
      self.mask2.backgroundColor = [[UIColor colorWithHexColorString:@"000000"] colorWithAlphaComponent:0.5]; 
      UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tap:)]; 
      [self.mask2 addGestureRecognizer:tap]; 
      [self.view.window addSubview:self.mask2];
     //遮罩层上放提示框      
      self.showView = [[UIView alloc] init]; 
      self.showView.frame = CGRectMake(32, kScreen_Height/2.0-((kScreen_Width-64)/254.0*150.0+44)/2.0-20, kScreen_Width-64, 0);
      self.showView.backgroundColor = [UIColor whiteColor]; 
      self.showView.layer.cornerRadius = 20; 
      [self.mask2 addSubview:_showView];
 
      
 
      UILabel *titleLab = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, _showView.width, 31)]; 
      titleLab.text = @"分享成功"; 
      titleLab.textAlignment = NSTextAlignmentCenter; 
      titleLab.backgroundColor = [UIColor redColor]; 
      titleLab.textColor = [UIColor whiteColor]; 
      titleLab.fOnt= [UIFont systemFontOfSize:15]; 
     //使用贝塞尔曲线，绘制一个上面两个是圆角的矩形 
      UIBezierPath *titlePath = [UIBezierPath bezierPathWithRoundedRect:titleLab.bounds byRoundingCorners:UIRectCornerTopLeft|UIRectCornerTopRight cornerRadii:CGSizeMake(20, 20)]; 
      CAShapeLayer *titleLayer = [CAShapeLayer layer]; 
      titleLayer.frame = titleLab.bounds; 
      titleLayer.path = titlePath.CGPath; 
      titleLab.layer.mask = titleLayer; 
      [_showView addSubview:titleLab]; 
 
      UILabel *lab = [[UILabel alloc] initWithFrame:CGRectMake(16, 31+16, _showView.width-32, 15)]; 
      lab.textAlignment = NSTextAlignmentLeft;
       lab.text = @"大家都在看"; 
      lab.textColor = [UIColor colorWithHexColorString:@"000000"]; 
      lab.fOnt= [UIFont systemFontOfSize:15]; 
      [_showView addSubview:lab];
 
      
 
      NSMutableArray *arr = [[NSMutableArray alloc] initWithObjects:@"",@"" nil]; 
      int y = 31+16+15+16; 
      for (int i = 0; i