Question

在iPhone中，我将使用图像自定义UITableView的滚动条。但我没有找到正确的方法。请帮我。提前谢谢。

Answer 1

首先，您必须在Interface Builder中取消选中showVerticalIndicatir和showHorizontallIndicatir。

然后在ViewDidLoad方法中添加：

    [super viewDidLoad];
    self.scrollViewBarImgView = [[UIImageView alloc] init];
    UIImage *imgBar = [UIImage imageNamed:@"scroller.png"];
    [self.scrollViewBarImgView setImage:imgBar];
    CGRect frame = scrollViewBarImgView.frame;
    frame.size.width = 8;
    frame.size.height = 60;
    frame.origin.x = 312;
    frame.origin.y = 0;
    [self.scrollViewBarImgView setFrame:frame];

[self.tableView addSubview:scrollViewBarImgView];

然后在 - （void）scrollViewDidScroll方法：

CGPoint offset = scrollView.contentOffset;
CGRect frame = self.scrollViewBarImgView.frame
float fact = (cellHeight*numberOfRow+ indicatorBarHeight) / tableViewHeight;
frame.origin.y = offset.y + (offset.y/fact);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.1];
[self.scrollViewBarImgView setFrame:frame];
[UIView commitAnimations];

iOS在UITableView中自定义滚动条

1 个答案: