Question

我在viewDidLoad和其他方法中有一个代码，我想重新加载它们，如果我点击一个按钮，我已经尝试了setNeedDisplay但它不起作用，我不知道我是否在使用它对吗？

这是我在viewDidLoad中的代码：

     - (void)viewDidLoad
  {
      // Create the UISegmentedControler "Next Review" and "Previouse Review"
      UISegmentedControl *paginateReviewSegment  = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"Précedent",@"Suivant", nil]];
      paginateReviewSegment.segmentedControlStyle = UISegmentedControlStyleBar;
      [paginateReviewSegment addTarget:self action:@selector(paginateReviews:) forControlEvents:UIControlEventValueChanged];

       UIBarButtonItem *paginateBarButton = [[UIBarButtonItem alloc] initWithCustomView:paginateReviewSegment];
       self.navigationItem.rightBarButtonItem =  paginateBarButton;

      [super viewDidLoad];

     // Get the review selected
      entryReview = [[entriesReview getEntries] objectAtIndex:self.reviewSelected];

    // Resize the UIScrollView
     [self.scrollView setScrollEnabled:YES];
     [self.scrollView setContentSize:self.contentView.frame.size];

    // Add UIView "Content" to UIScrollView
    [self.scrollView addSubview:self.contentView];

   // Set the user name
   userNameLabel.text = entryReview.userName;

   .....
   }

这是我想用来重新加载UIView的动作：

  - (void)paginateReviews:(UISegmentedControl*)sender
  {
      if (sender.selectedSegmentIndex == 0 && self.reviewSelected != 0)
      {
          self.reviewSelected -= 1; 
          entryReview = [[entriesReview getEntries] objectAtIndex:self.reviewSelected];
          [self.view setNeedsDisplay];

      } else if(sender.selectedSegmentIndex == 0 && self.reviewSelected != ([entriesReview entriesCount] - 1)) 
      {
          self.reviewSelected += 1; 
          entryReview = [[entriesReview getEntries] objectAtIndex:self.reviewSelected];
      }

  }

Answer 1

[self.view setNeedsDisplay];不会调用[self viewDidLoad];。

而且，我们不会手动调用viewDidLoad。我建议将要调用的代码移动到另一个方法中，并在viewDidLoad和方法绑定中调用该方法。

我怎样才能重新加载我的UIViewController？

1 个答案: