ios - 在 UITableView 中单击时更改 UIButton 颜色和文本

Question

我必须在单击每个单元格时将此“关注”按钮更改为“关注”，当我再次点击“关注”时，它应该返回到“关注”。怎么可能？

Answer 1

创建从单元格到 Controller 的 Action 。现在您可以引用您的单元格按钮

-(void)followButtonActionFromTableViewCell:(UIButton *)sender
{  
 [self followUnfolloWithButton:sender]
}

-(void)followUnfolloWithButton:(UIButton *)sender{
//you may need to call web service and set button accordingly

   [sender setTitle:@"Follow" forState:UIControlStateNormal];
    [sender setBackgroundColor:[UIColor yellowColor]];//set your colour

}

如果你想重新加载 TableView ，请使用。

  UIButton * button = (UIButton*)sender;
  CGRect frameRect ;
   NSIndexPath * indexPath ;
   frameRect=[button convertRect:button.bounds toView:self.tableView];
   indexPath= [self.tableView indexPathForRowAtPoint:frameRect.origin];

//Reload 

  [self.tableView reloadRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationAutomatic];

在 cellForRowAtIndexPath 方法中保存 follow/following put 检查条件的状态。和

update your model by sender.tag

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

//...your code
cell.yourFollowButton.tag=indexPath.row;

//check condition and set button text and colour 

    }