可能重复:
how to change tableView Cell button on click in iphone
我在表格 View 单元格中有一个按钮,其背景图像使用此函数设置。
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:
SectionsTableIdentifier];
cell.textLabel.text = self.names[self.keys];
if (cell.accessoryView == nil) {
UIImage *buttonUpImage = [UIImage imageNamed:@"button_up.png"];
UIImage *buttonDownImage = [UIImage imageNamed:@"button_down.png"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setBackgroundImage:buttonUpImage
forState:UIControlStateNormal];
[button setBackgroundImage:buttonDownImage
forState:UIControlStateHighlighted];
[button setTitle:@"Send" forState:UIControlStateNormal];
[button sizeToFit];
[button addTarget:self
action:@selector(tappedButton:)
forControlEvents:UIControlEventTouchUpInside];
cell.accessoryView = button;
}
return cell;
}
点击按钮的代码是:
- (void)tappedButton:(UIButton *)sender
{
NSInteger row = sender.tag;
// NSString *character = self.names[self.keys];
/* NSString *key = self.keys[indexPath.row];
NSArray *nameSection = self.names[key];
NSString *character = nameSection[indexPath];
*/
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:@"Request Notification."
message:[NSString
stringWithFormat:@"Friend Request Sent ."]
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
/* UIImage *buttonUpImage = [UIImage imageNamed:@"button.png"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[cell.theSyncButton setImage:buttonUpImage forState:UIControlStateSelected];
[button setBackgroundImage:buttonUpImage
forState:UIControlStateNormal];
[button setTitle:@"Sent" forState:UIControlStateNormal];
[button sizeToFit];
*/
}
现在我需要的是在用户单击表格 View 单元格中的“发送”按钮时动态地将背景颜色和标题更改为“已发送”。我如何才能获得此功能?
最佳答案
试试这个,
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
....
UIButton *button;
if (cell.accessoryView == nil) {
...
button = [UIButton buttonWithType:UIButtonTypeCustom];
....
cell.accessoryView = button;
}
button.tag = indexPath.row;
...
}
在 tappedButton 中:
- (void)tappedButton:(UIButton *)sender
{
NSInteger row = sender.tag;
UIImage *buttonUpImage = [UIImage imageNamed:@"button.png"];
[sender setBackgroundImage:buttonUpImage
forState:UIControlStateNormal];
[sender setTitle:@"Sent" forState:UIControlStateNormal];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:row inSection:0];
[self.tableView beginUpdates];
[self.tableView reloadRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationFade];
[self.tableView endUpdates];
}
关于ios - 如何在 ios 中单击时更改 tableView Cell 按钮图像,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22960879/