After researching for a day, I just found a way to implement the delete button of a custom rounded left sliding cell, mainly to print out the view hierarchy of UITableView step by step (Xcode 9.0 iOS 10+)
In UITableView's ViewController's - (void)viewDidLayoutSubviews implementation.
iOS 11 (Xcode 9编译): UITableView -> UISwipeActionPullView -> UISwipeActionStandardButton
The Delete button displayed by sliding is on _tableVeiw.subviews, print out _tableVeiw.subviews, there is a UISwipeActionStandardButton in it, take out this button is the delete button
UIButton *deleteButton = subview.subviews[0];
deleteButton.frame = CGRectMake(0, 5, 70, 110);
deleteButton.backgroundColor = [UIColor whiteColor];
[deleteButton setBackgroundImage:[UIImage imageNamed:@"Group 5"] forState:UIControlStateNormal];
At the same time to implement the agent
- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
{
self.editingIndexPath = indexPath;
[self.view setNeedsLayout]; // 触发-(void)viewDidLayoutSubviews
}
- (void)tableView:(UITableView *)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath
{
self.editingIndexPath = nil;
}
[self.view setNeedsLayout]; must be implemented
Here is all the code
- (void)viewDidLayoutSubviews
{
[super viewDidLayoutSubviews];
if (self.editingIndexPath)
{
[self configSwipeButtons];
}
}
- (void)configSwipeButtons
{
// Get the reference of the option button
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"11.0")){
for (UIView *subview in _tableVeiw.subviews)
{
subview.backgroundColor = [UIColor whiteColor];
if ([subview isKindOfClass:NSClassFromString(@"UISwipeActionPullView")])
{
NSLog(@"The view above%@",subview.subviews);
// Reverse the order of buttons in iOS 10
UIButton *deleteButton = subview.subviews[0];
deleteButton.frame = CGRectMake(0, 5, 70, 110);
// deleteButton.layer.cornerRadius = 10;
// deleteButton.layer.masksToBounds = YES;
deleteButton.backgroundColor = [UIColor whiteColor];
[deleteButton setBackgroundImage:[UIImage imageNamed:@"Group 5"] forState:UIControlStateNormal];
[self configDeleteButton:deleteButton];
[self centerImageAndTextOnButton:deleteButton];
}
}
}else{
// iOS 8-10层级: UITableView -> UITableViewCell -> UITableViewCellDeleteConfirmationView
NoticeTableVC *tableCell = [_tableVeiw cellForRowAtIndexPath:self.editingIndexPath];
for (UIView *subview in tableCell.subviews)
{
subview.backgroundColor = [UIColor whiteColor];
if ([subview isKindOfClass:NSClassFromString(@"UITableViewCellDeleteConfirmationView")])
{
UIButton *deleteButton = subview.subviews[0];
[self configDeleteButton:deleteButton];
deleteButton.frame = CGRectMake(0, 5, 60, 110);
// deleteButton.layer.cornerRadius = 10;
// deleteButton.layer.masksToBounds = YES;
deleteButton.backgroundColor = [UIColor whiteColor];
[deleteButton setBackgroundImage:[UIImage imageNamed:@"Group 5"] forState:UIControlStateNormal];
[self configDeleteButton:deleteButton];
[self centerImageAndTextOnButton:deleteButton];
}
}
}
}
- (void)centerImageAndTextOnButton:(UIButton*)button
{
if (SYSTEM_VERSION_LESS_THAN(@"11.0"))
{
CGRect btnFrame = button.frame;
btnFrame.origin.y = 30;
button.frame = btnFrame;
}
}
- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
{
self.editingIndexPath = indexPath;
[self.view setNeedsLayout]; // 触发-(void)viewDidLayoutSubviews
}
- (void)tableView:(UITableView *)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath
{
self.editingIndexPath = nil;
}
- (void)configDeleteButton:(UIButton*)deleteButton
{
if (deleteButton)
{
//method triggered by clicking the delete button
}
}
- (void)configReadButton:(UIButton*)readButton
{
if (readButton)
{
}
}
#pragma mark - return to edit mode, default is delete mode
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
return UITableViewCellEditingStyleDelete;
}
- (nullable NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath{
return @"delete";
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{//Request data source submission to insert or delete the specified row receiver.
if (editingStyle == UITableViewCellEditingStyleDelete) {//If the editing style is the delete style
}else {
}
}
-(void) tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath
{
NSLog(@"Tapped accessory button");
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
}