Question

我想在自定义表格单元格中使用UIWebView和label显示一些网页。

我已成功为不同的cell获取不同的名称，但我在每个自定义url中获得相同的cell。如何为不同的单元格获得不同的URL？

//MyCustomCell.h

@property (weak, nonatomic) IBOutlet UIWebView *myWebView;
@property (weak, nonatomic) IBOutlet UILabel *websiteNameLabel;
@property NSString *websiteURLString;

//MyCustomCell.m
- (void)awakeFromNib
{
    // Initialization code
    self.websiteURLString = [NSURL URLWithString:@"http://www.google.com"];
    NSURLRequest *request1 = [NSURL URLWithString:self.websiteURLString];
    [[self myWebView]loadRequest:request1];

    self.websiteURLString = [NSURL URLWithString:@"http://www.gmail.com"];
    NSURLRequest *request2 = [NSURL URLWithString:self.websiteURLString];
    [[self myWebView]loadRequest:request2];

    self.websiteURLString = [NSURL URLWithString:@"http://www.facebook.com"];
    NSURLRequest *request3 = [NSURL URLWithString:self.websiteURLString];
    [[self myWebView]loadRequest:request3];
}

//MyViewController.h
@property NSMutableArray *webPageNameArray;
@property NSString *googleWebURL,*yahooWebURL,*facebookWebURL;

//MyViewController.m
- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib. 
    self.webPageNameArray = [[NSMutableArray alloc]initWithObjects:@"google",@"gmail",@"facebook", nil];  
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 3;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *identifier = @"myCell";
    StudentCustomCell *cell = (StudentCustomCell*)[tableView dequeueReusableCellWithIdentifier:identifier];

    if (cell == nil)
    {
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"StudentCustomCell" owner:self options:nil];
        cell = [nib objectAtIndex:0];
    }

    cell.websiteNameLabel.text = [self.webPageNameArray objectAtIndex:indexPath.row];
    return cell;
}

Answer 1

从-awakeFromNib MyCustomCell.m删除您的代码，然后使用以下内容替换MyViewController.m处的代码：

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
    self.webPageNameArray = [ @"google", @"gmail", @"facebook" ];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.webPageNameArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *identifier = @"myCell";
    StudentCustomCell *cell = (StudentCustomCell*)[tableView dequeueReusableCellWithIdentifier:identifier];

    if (!cell)
    {
        UINib *headerNib = [UINib nibWithNibName:@"StudentCustomCell" bundle:nil];
        NSArray *aNib = [headerNib instantiateWithOwner:self options:nil];
        cell = [aNib objectAtIndex:0];
    }

    cell.websiteNameLabel.text = self.webPageNameArray[indexPath.row];
    NSString *websiteURLString = [NSURL URLWithString:[NSString stringWithFormat:@"http://www.%@.com", self.webPageNameArray[indexPath.row]]];
    NSURLRequest *request = [NSURL URLWithString:websiteURLString];
    [cell.myWebView loadRequest:request];

    return cell;
}

Answer 2

NSURL *url=[NSURL URLWithString:[NSString stringWithFormat:@"%@",cell.websiteURLString]];
NSURLRequest *myRequest=[NSURLRequest requestWithURL:url];
[cell.myWebView loadRequest:myRequest];

如何使用UIWebView将youtube视频添加到自定义UITableViewCell

2 个答案: