iOS 修改 TableView 的 delete 按钮

在iOS 6 以前重写
-(void)willTransitionToState:(UITableViewCellStateMask)state ,发现iOS7 以前的方法不管用了

iOS7 下
在自定义cell里重写
-(void)willTransitionToState:(UITableViewCellStateMask)state{
[super
willTransitionToState:state];
if((state &
UITableViewCellStateShowingDeleteConfirmationMask) ==
UITableViewCellStateShowingDeleteConfirmationMask){
// [self recurseAndReplaceSubViewIfDeleteConfirmationControl:self.subviews];
[self performSelector:@selector(recurseAndReplaceSubViewIfDeleteConfirmationControl:)
withObject:self.subviews
afterDelay:0];
}
}

-(void)recurseAndReplaceSubViewIfDeleteConfirmationControl:(NSArray*)subviews{
NSString *delete_button_name =
@"delete";
for (UIView *subview
in subviews)
{
/**
* iOS 6 以前
*/
if ([NSStringFromClass([subview
class]) isEqualToString:@"UITableViewCellDeleteConfirmationControl"])
{
/**
将添加一个视图来覆盖默认的控制使用的图像有一个透明的背景
*/
UIView *backgroundCoverDefaultControl = [[UIView
alloc] initWithFrame:CGRectMake(0,0,
64, 33)];
[backgroundCoverDefaultControl setBackgroundColor:[UIColor
whiteColor]];
[[subview.subviews
objectAtIndex:0] addSubview:backgroundCoverDefaultControl];
UIImage *deleteImage = [UIImage
imageNamed:delete_button_name];
UIImageView *deleteBtn = [[UIImageView
alloc]initWithFrame:CGRectMake(0,
0,deleteImage.size.width, deleteImage.size.height)];
[deleteBtn setImage:[UIImage
imageNamed:delete_button_name]];
[[subview.subviews
objectAtIndex:0] addSubview:deleteBtn];
}
/**
* ios7
*/
if ([NSStringFromClass([subview
class]) isEqualToString:@"UITableViewCellDeleteConfirmationButton"])
{
UIButton *deleteButton = (UIButton *)subview;
[deleteButton setImage:[UIImage
imageNamed:delete_button_name] forState:UIControlStateNormal];
[deleteButton setTitle:@""
forState:UIControlStateNormal];
[deleteButton setBackgroundColor:[UIColor
clearColor]];
for(UIView* view
in subview.subviews){
if([view isKindOfClass:[UILabel
class]]){
[view removeFromSuperview];
}
}
}
if ([NSStringFromClass([subview
class]) isEqualToString:@"UITableViewCellDeleteConfirmationView"])
{
for(UIView* innerSubView
in subview.subviews){
if(![innerSubView
isKindOfClass:[UIButton class]]){
[innerSubView removeFromSuperview];
}
}
}
if([subview.subviews
count]>0){
[self
recurseAndReplaceSubViewIfDeleteConfirmationControl:subview.subviews];
}

}
}