使用 viewForHeaderInSection
有一个类似展开-折叠的表格 View ,带有自定义标题。
在那,我想添加滑动手势功能来删除相同的 View ,即 section header
。
我的 viewForHeaderInSection
代码是,
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
mView = [[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 110)]autorelease];
mView.backgroundColor=[UIColor whiteColor];
[mView setBackgroundColor:[UIColor whiteColor]];
UILabel *title=[[UILabel alloc]initWithFrame:CGRectMake(10, 10, 290, 28)];
title.text=[[updateDataArray objectAtIndex:section] objectForKey:@"message"];
title.font = [UIFont fontWithName:@"Raleway-Medium" size:18];
UIButton *bt = [UIButton buttonWithType:UIButtonTypeCustom];
[bt setFrame:CGRectMake(0, 0, 320, 44)];
[bt setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[bt setTag:section];
addCellFlag=2;
[bt.titleLabel setFont:[UIFont systemFontOfSize:20]];
[bt.titleLabel setTextAlignment:NSTextAlignmentCenter];
[bt.titleLabel setTextColor:[UIColor blueColor]];
[bt setBackgroundColor:[UIColor whiteColor]];
[bt addTarget:self action:@selector(addCell:) forControlEvents:UIControlEventTouchUpInside];
[mView addSubview:bt];
if (section<updateDataArray.count-1) {
UIView *lineView = [[UIView alloc]initWithFrame:CGRectMake(0, 2, 320, 0)];
lineView.backgroundColor=[UIColor lightGrayColor];
[bt addSubview:lineView];
[lineView release];
}
mView.backgroundColor=[UIColor clearColor];
[mView addSubview:title];
return mView;
}
请建议如何创建滑动以删除表格 View 行等按钮功能?我也想要部分标题中的那个按钮。
最佳答案
在返回 View 之前在 viewForHeaderInSection 中添加以下行:
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
....
// Your code here
....
mView.tag = section;
UISwipeGestureRecognizer* sgr = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(headerViewSwiped:)];
[sgr setDirection:UISwipeGestureRecognizerDirectionRight]; // change direction accordingly
[mView addGestureRecognizer:sgr];
return mView;
}
- (void)headerViewSwiped:(UIGestureRecognizer *)gestureRecognizer {
if (gestureRecognizer.state == UIGestureRecognizerStateEnded) {
UIView *mView= (UIView *)gestureRecognizer.view;
// use mView.tag property to get the section index which you require to delete from array
// update your sectionDataSource array remove all the objects from section array
// so that it will reflect to numberOfSection method
// then remove all the rows which that section containing from your rowDataSource array
// so that it will reflect to numberOfRowsInSection method
// now call [tableView reloadData] method
}
}
这是实现您要求的基本想法,请根据您的项目要求更改此代码。
希望这对您有所帮助。
关于iOS:如何将滑动删除按钮添加到 viewForHeaderInSection 中的自定义 View ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27598066/