Question

ios中有这种黑暗的巫术阻止了我的按钮被点击。如果我没有向uitableviewcell添加按钮，并且我单击按钮，则会触发事件。但如果按钮在uitableviewcell中，它将不会被触发，它似乎是表格我准备了示例代码，如果你们可以帮助我，请在xcode中创建一个简单的单视图应用程序，然后粘贴以下代码

// GRDViewController.h

#import <UIKit/UIKit.h>

@interface GRDViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>

@property (nonatomic, strong) UIView* container;
@property (nonatomic, strong) UIButton* button;
@property (nonatomic, strong) UITableView* tableView;
@property (nonatomic, strong) NSArray* arr;

@end

// GRDViewController.m

#import "GRDViewController.h"

@implementation GRDViewController
@synthesize button, container, arr, tableView;

- (void)_btnTapped {
NSLog(@"TAPPED");
}

- (void)viewDidLoad 
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
    self.button = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 100, 100)];
    [self.button addTarget:self action:@selector(_btnTapped)    forControlEvents:UIControlEventTouchUpInside];
   [self.button setTitle:@"CLICK ME" forState:UIControlStateNormal];
  self.arr = [[NSArray alloc] initWithObjects:@"123", @"456", @"678", nil];

   self.container = [[UIView alloc]initWithFrame:self.button.frame];
  [self.container addSubview:self.button];
  [self.view addSubview:self.container];
  //[self.view  addSubview:self.button];

  self.tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 100, 400, 400)];

 self.tableView.autoresizingMask = UIViewAutoresizingFlexibleHeight |   UIViewAutoresizingFlexibleWidth;
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
  self.tableView.delegate = self;
  self.tableView.dataSource = self;

  [self.view addSubview:self.tableView];

self.tableView.backgroundColor  = [UIColor redColor];





}



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

  if (cell == nil) {
            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault   reuseIdentifier:cellIdentifier];
      //cell.accessoryType = UITableViewCellAccessoryNone;

      UIButton * btn =  [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 50, 50)];
         [btn addTarget:self action:@selector(_btnTapped)   forControlEvents:UIControlStateNormal];
      [btn setTitle:[self.arr objectAtIndex:[indexPath row]]     forState:UIControlStateNormal];
     [cell.contentView addSubview:btn];
         }

    return cell; 
}
- (NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section {
   return [self.arr count];      
}
 @end

请帮忙我觉得这个案子应该在ios中很常见，但没人能解决这个问题???

编辑：当点击按钮时，它会在xcode控制台中打印NSLOG msg ...所以请确保...你在那里查看结果......

Answer 1

您没有向按钮发出任何控制事件。请从UIControlEventTouchUpInside

将其更改为UIControlStateNormal

Answer 2

而不是使用UIControlStateNormal用于ControlEvents而不是像这样使用UIControlEventTouchUpInside

[btn addTarget:self action:@selector(_btnTapped) forControlEvents:UIControlEventTouchUpInside];

Answer 3

尝试这样做：

[btn.titleLabel setUserInteractionEnabled: NO];

UIButton没有响应UITableViewCell中的click事件

3 个答案: