iPhone sdk如何在两次不同的按钮点击中添加/删除UIButton
我有两个单独的按钮,分别用于在UITableView中按升序和降序对数组进行排序iPhone sdk如何在两次不同的按钮点击中添加/删除UIButton,iphone,uibutton,hidden,Iphone,Uibutton,Hidden,我有两个单独的按钮,分别用于在UITableView中按升序和降序对数组进行排序 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { checkButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; checkButton.frame = CGRec
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
checkButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
checkButton.frame = CGRectMake(540, 30, 42, 42);
[checkButton setBackgroundImage:[[UIImage imageNamed:@"Down Arrow.png"] stretchableImageWithLeftCapWidth:0.0 topCapHeight:0.0] forState:UIControlStateNormal];
[checkButton addTarget:self action:@selector(descender:) forControlEvents:UIControlEventTouchUpInside];
[checkButton setTag:200];
[cell.contentView addSubview:checkButton];
checkButton1 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
checkButton1.frame = CGRectMake(600, 30, 42, 42);
[checkButton1 setBackgroundImage:[[UIImage imageNamed:@"Up Arrow.png"] stretchableImageWithLeftCapWidth:0.0 topCapHeight:0.0] forState:UIControlStateNormal];
[checkButton1 addTarget:self action:@selector(ascender:) forControlEvents:UIControlEventTouchUpInside];
[checkButton1 setTag:100];
[cell.contentView addSubview:checkButton1];
checkButton = (UIButton *)[cell viewWithTag:200];
if (indexPath.row == 0 && appDelegate.a == 300)
{
checkButton.hidden = NO;
checkButton1.hidden = YES;
}
checkButton1 = (UIButton *)[cell viewWithTag:100];
if ((lastSectionIndex == indexPath.section && lastRowIndex == indexPath.row ))
{
checkButton.hidden = YES;
checkButton1.hidden = NO;
}
}
在cellforrowAtIndexPath中,我添加了两个用于排序的按钮。现在,当我点击排序按钮时,排序按钮应该消失,完成按钮必须出现。我给出的结论如下:
-(void)sortItem:(id)sender
{
NSLog(@"sort clicked");
if(appDelegate.a = 300)
{
checkButton.hidden = NO;
checkButton1.hidden = YES;
}
self.navigationItem.title = @"Sort Book Shelf";
sortButton.hidden = YES;
editButton.hidden = YES;
doneButton.hidden = NO;
// if (appDelegate.b == 400)
// {
// checkButton.hidden = NO;
// checkButton1.hidden = NO;
// }
[editTable reloadData];
}
接下来,当我单击“排序”按钮时,这两个“检查”按钮应该出现,而当我单击“完成”按钮时,这两个按钮应该消失
-(void)doneClick:(id)sender
{
NSLog(@"Done Clicked");
if (appDelegate.b == 400)
{
checkButton.hidden = YES;
checkButton1.hidden = YES;
}
self.navigationItem.title = @"Edit Book Shelf";
sortButton.hidden = NO;
editButton.hidden = NO;
doneButton.hidden = YES;
}
现在,我的排序功能运行良好。但当我点击“完成”按钮时,我的按钮并没有从单元格路径中消失,因为我给出了条件,让按钮位于第一个和最后一个索引上。如何仅在单击“完成”按钮时隐藏我的两个按钮?提前非常感谢。也请尝试在doneClick中调用reload data
[editTable reloadData];
试着先在谷歌上搜索,然后再在软件上提问,因为这可能是重复的问题 h m
在
表格视图的开始和结束更新中,给出按钮
方法块。像
-(void)doneClick:(id)sender
{
NSLog(@"Done Clicked");
[tableView beginUpdates];
if (appDelegate.b == 400)
{
checkButton.hidden = YES;
checkButton1.hidden = YES;
}
[tableView endUpdates];
self.navigationItem.title = @"Edit Book Shelf";
sortButton.hidden = NO;
editButton.hidden = NO;
doneButton.hidden = YES;
}
我不能清楚地理解你的问题。。。。那么,你想要什么???请简写:)
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
// . . Some Code . . .
if ( selectedIndexPath.row = indexPath.row && selectedIndexPath.section = indexPath.section ) {
button1.hidden = NO;
button2.hidden = NO;
} else {
button1.hidden = YES;
button2.hidden = YES;
}
// . . Some Code . . .
}
- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath {
selectedIndexPath = indexPath;
[tableView relaodData];
}
-(void)doneClick:(id)sender
{
NSLog(@"Done Clicked");
[tableView beginUpdates];
if (appDelegate.b == 400)
{
checkButton.hidden = YES;
checkButton1.hidden = YES;
}
[tableView endUpdates];
self.navigationItem.title = @"Edit Book Shelf";
sortButton.hidden = NO;
editButton.hidden = NO;
doneButton.hidden = YES;
}