问题描述
|
以下是ѭ0的代码
UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects: [UIImage imageNamed:@\"down.png\"],[UIImage imageNamed:@\"dList.png\"],nil]];
[segmentedControl addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged];
segmentedControl.frame = CGRectMake(0,90,65);
segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
segmentedControl.momentary = YES;
UIBarButtonItem *segmentBarItem = [[UIBarButtonItem alloc] initWithCustomView:segmentedControl];
[segmentedControl release];
self.navigationItem.rightBarButtonItem = segmentBarItem;
[segmentBarItem release];
和
- (void)segmentAction:(id)sender{
if([sender selectedSegmentIndex] == 0)
{
button.hidden=NO;
}
else
{
[self dListMethod ];
}
}
在if()部分中,我想禁用selectedSegmentIndex==0
并在button.hidden=YES
时启用
解决方法
使用“ 5”方法启用和禁用分段。
[segmentedControl setEnabled:NO forSegmentAtIndex:0];
如果要禁用第一段。
, 对于那些对swift命令感兴趣的人:
迅捷2.3
segmentedControl.setEnabled(false,forSegmentAtIndex: 0);
迅捷3
self.segmentedControl.setEnabled(false,forSegmentAt: 0);