如何设置按钮的索引路径？
如何设置按钮的索引路径？
提问于 2016-06-10 20:29:21
使用下面的代码，我试图获得视频点赞计数，我正在获得数组中的计数，我想将其设置为一个按钮标题，所有工作正常。
我有一个按钮动作，有了这个按钮，我就能显示出这个按钮上的点赞了。但我的问题是，使用这段代码，我在表视图中的所有剪辑中都得到了相同的like count，所以我想要获得各自点击like按钮的特定like count，我该怎么做呢？
// here is how i am getting like count
- (void)getcat
{
NSFetchRequest *fetchRequest = [NSFetchRequest fetchRequestWithEntityName:@"ClipTable"];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"ClipTable" inManagedObjectContext:self.managedObjectContext];
fetchRequest.resultType = NSDictionaryResultType;
fetchRequest.propertiesToFetch = [NSArray arrayWithObject:[[entity propertiesByName] objectForKey:@"total_likes"]];
fetchRequest.returnsDistinctResults = YES;
NSArray *dictionaries = [self.managedObjectContext executeFetchRequest:fetchRequest error:nil];
NSLog (@"total_likes: %@",dictionaries);
[NSString stringWithFormat:@"%@",[dictionaries valueForKey:@"total_likes"]];
self.devices =[[NSMutableArray alloc]init];
self.devices=[dictionaries mutableCopy];
NSLog(@"cat1 is%@",self.devices);
}这就是我显示的点数按钮
- (IBAction)likeButtonAction:(id)sender
{
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:[sender tag] inSection:0];
NSManagedObject *managedObject = [self.devices objectAtIndex:indexPath.row];
NSString *likes = [NSString stringWithFormat:@"%@",[managedObject valueForKey:@"total_likes"]];
[sender setTitle:likes forState:UIControlStateNormal];
}cellForRowAtIndexPath的代码如下此代码不包含我的任何按钮代码按钮操作likeButtonTapped是单独的
- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath {
// Fetch Record
NSManagedObject *record = [self.fetchedResultsController objectAtIndexPath:indexPath];
//this button is different one
UIButton *btn=[[UIButton alloc]initWithFrame:CGRectMake(208,96, 100, 30)];
[btn addTarget:self action:@selector(yourButtonClicked:) forControlEvents:UIControlEventTouchUpInside]; btn.tag = indexPath.row;
[btn setImage:[UIImage imageNamed:@"btn-details.png"] forState:UIControlStateNormal];
[cell.contentView addSubview:btn];
NSLog(@"sender.tag cell is%ld ",(long)btn.tag);
}
see my debugger output
indexpath is0
2016-06-10 19:20:31.435 freejournlaist[4159:134867] indexpath is4
2016-06-10 19:20:31.436 freejournlaist[4159:134867] sender.tag cell is4
2016-06-10 19:20:33.351 freejournlaist[4159:134867] indexpath is5
2016-06-10 19:20:33.352 freejournlaist[4159:134867] sender.tag cell is5
2016-06-10 19:20:34.140 freejournlaist[4159:134867] indexpath is6
2016-06-10 19:20:34.141 freejournlaist[4159:134867] sender.tag cell is6
2016-06-10 19:20:35.506 freejournlaist[4159:134867] indexpath is7
2016-06-10 19:20:35.507 freejournlaist[4159:134867] sender.tag cell is7
2016-06-10 19:20:35.888 freejournlaist[4159:134867] indexpath is8
2016-06-10 19:20:35.889 freejournlaist[4159:134867] sender.tag cell is8
2016-06-10 19:20:36.139 freejournlaist[4159:134867] indexpath is9
2016-06-10 19:20:36.140 freejournlaist[4159:134867] sender.tag cell is9
2016-06-10 19:20:36.475 freejournlaist[4159:134867] indexpath is10
2016-06-10 19:20:36.476 freejournlaist[4159:134867] sender.tag cell is10
2016-06-10 19:20:38.201 freejournlaist[4159:134867] indexpath is6
2016-06-10 19:20:38.202 freejournlaist[4159:134867] sender.tag cell is6
2016-06-10 19:20:38.701 freejournlaist[4159:134867] indexpath is5
2016-06-10 19:20:38.702 freejournlaist[4159:134867] sender.tag cell is5
2016-06-10 19:20:39.267 freejournlaist[4159:134867] indexpath is4
2016-06-10 19:20:39.268 freejournlaist[4159:134867] sender.tag cell is4
2016-06-10 19:20:40.684 freejournlaist[4159:134867] indexpath is3
2016-06-10 19:20:40.685 freejournlaist[4159:134867] sender.tag cell is3
2016-06-10 19:20:40.837 freejournlaist[4159:134867] indexpath is2
2016-06-10 19:20:40.839 freejournlaist[4159:134867] sender.tag cell is2
2016-06-10 19:20:41.152 freejournlaist[4159:134867] indexpath is1
2016-06-10 19:20:41.153 freejournlaist[4159:134867] sender.tag cell is1
2016-06-10 19:20:41.952 freejournlaist[4159:134867] indexpath is0
2016-06-10 19:20:41.954 freejournlaist[4159:134867] sender.tag cell is0
2016-06-10 19:21:02.915 freejournlaist[4159:134867] indexpath is3
2016-06-10 19:21:02.916 freejournlaist[4159:134867] sender.tag cell is3
2016-06-10 19:55:38.055 freejournlaist[4326:144151] total_likes: (
{
"total_likes" = 1;
},
{
"total_likes" = 5;
},
{
"total_likes" = 2;
},
{
"total_likes" = 0;
},
{
"total_likes" = 4;
},
{
"total_likes" = 3;
},
{
"total_likes" = 6;
},
{
"total_likes" = 115;
}
)
2016-06-10 19:55:38.055 freejournlaist[4326:144151] cat1 is(
{
"total_likes" = 1;
},
{
"total_likes" = 5;
},
{
"total_likes" = 2;
},
{
"total_likes" = 0;
},
{
"total_likes" = 4;
},
{
"total_likes" = 3;
},
{
"total_likes" = 6;
},
{
"total_likes" = 115;
}Stack Overflow用户
发布于 2016-06-10 20:42:31
如果你正在做下面的事情，那么应该没有问题..
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
/* - - - - */
/* - - - - */
[cell.yourButton setTag:indexPath.row];
/* - - - - */
/* - - - - */
}获取按钮索引的其他替代方法是：
-(IBAction)likeButtonAction:(id)sender
{
CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:yourTable];
NSIndexPath *indexPath = [yourTable indexPathForRowAtPoint:buttonPosition];
NSInteger rowIndex = indexPath.row;
// Use this index path
}如果使用tag进行转换，请将sender转换为UIButton对象，如下所示：
-(IBAction)likeButtonAction:(id)sender
{
UIButton *button = (UIButton *)sender;
NSLog(@"%d", button.tag);
/* - - - - */
/* - - - - */
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/37748333
复制相关文章
相似问题
腾讯云开发者
