ios - 如何在 UITableviewcell 中隐藏或显示 uibutton

Question

我在uitableviewcell中创建了一个按钮

@interface MyMusicLibraryCell : UITableViewCell
{
    IBOutlet UIButton * rangeBtn ;
}

在.m文件中

@synthesize rangeBtn;
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        // Initialization code 
        rangeBtn = [[UIButton alloc] init];
        rangeBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        [rangeBtn setBackgroundImage:[UIImage imageNamed:@"fav_4.png"] forState:UIControlStateNormal];
        rangeBtn.frame = CGRectMake(260.0f, 10.0f, 20.0f, 20.0f);
        [self addSubview:rangeBtn];
    }

    return self;
}

我想使用 rangeBtn 并在 cellForRowAtIndexPath 中添加一个 addTarget。我应该怎么做？

Answer 1

给按钮添加一个标签，您可以访问按钮如下:

// initWithStyle
rangeBtn.tag = 1;


// cellForRowAtIndexPath
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier: @"cell"];
    UIButton *cellButton = (UIButton *)[cell viewWithTag: 1];

    // add target to the button
    [cellButton addTarget: self action: @selector(buttonPressed:) forControlEvent: UIControlEventTouchUpInside];
}