我正在使用“滑动删除”功能UITableView
.
问题是我正在使用定制的UITableViewCell
这是在每个项目的基础上创建的
- (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
我需要改变删除按钮的位置(只需将其向左移动 10px 左右),我该如何做呢?
这是我用于创建单元格的现有代码:
- (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(@"cellForRowAtIndexPath");
#if USE_CUSTOM_DRAWING
const NSInteger TOP_LABEL_TAG = 1001;
const NSInteger BOTTOM_LABEL_TAG = 1002;
UILabel *topLabel;
UILabel *bottomLabel;
#endif
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
//
// Create the cell.
//
cell =
[[[UITableViewCell alloc]
initWithFrame:CGRectZero
reuseIdentifier:CellIdentifier]
autorelease];
#if USE_CUSTOM_DRAWING
const CGFloat LABEL_HEIGHT = 20;
UIImage *image = [UIImage imageNamed:@"trans_clock.png"];
//
// Create the label for the top row of text
//
topLabel =
[[[UILabel alloc]
initWithFrame:
CGRectMake(
image.size.width + 2.0 * cell.indentationWidth,
0.5 * (aTableView.rowHeight - 2 * LABEL_HEIGHT),
aTableView.bounds.size.width -
image.size.width - 4.0 * cell.indentationWidth
,
LABEL_HEIGHT)]
autorelease];
[cell.contentView addSubview:topLabel];
//
// Configure the properties for the text that are the same on every row
//
topLabel.tag = TOP_LABEL_TAG;
topLabel.backgroundColor = [UIColor clearColor];
topLabel.textColor = fontColor;
topLabel.highlightedTextColor = [UIColor colorWithRed:1.0 green:1.0 blue:0.9 alpha:1.0];
topLabel.font = [UIFont systemFontOfSize:[UIFont labelFontSize]];
//
// Create the label for the top row of text
//
bottomLabel =
[[[UILabel alloc]
initWithFrame:
CGRectMake(
image.size.width + 2.0 * cell.indentationWidth,
0.5 * (aTableView.rowHeight - 2 * LABEL_HEIGHT) + LABEL_HEIGHT,
aTableView.bounds.size.width -
image.size.width - 4.0 * cell.indentationWidth
,
LABEL_HEIGHT)]
autorelease];
[cell.contentView addSubview:bottomLabel];
//
// Configure the properties for the text that are the same on every row
//
bottomLabel.tag = BOTTOM_LABEL_TAG;
bottomLabel.backgroundColor = [UIColor clearColor];
bottomLabel.textColor = fontColor;
bottomLabel.highlightedTextColor = [UIColor colorWithRed:1.0 green:1.0 blue:0.9 alpha:1.0];
bottomLabel.font = [UIFont systemFontOfSize:[UIFont labelFontSize] - 2];
//
// Create a background image view.
//
cell.backgroundView =
[[[UIImageView alloc] init] autorelease];
cell.selectedBackgroundView =
[[[UIImageView alloc] init] autorelease];
#endif
}
#if USE_CUSTOM_DRAWING
else
{
topLabel = (UILabel *)[cell viewWithTag:TOP_LABEL_TAG];
bottomLabel = (UILabel *)[cell viewWithTag:BOTTOM_LABEL_TAG];
}
topLabel.text = @"Example Text";
topLabel.textColor = fontColor;
bottomLabel.text = @"More Example Text";
bottomLabel.textColor = fontColor;
//
// Set the background and selected background images for the text.
// Since we will round the corners at the top and bottom of sections, we
// need to conditionally choose the images based on the row index and the
// number of rows in the section.
//
UIImage *rowBackground;
UIImage *selectionBackground;
NSInteger sectionRows = [aTableView numberOfRowsInSection:[indexPath section]];
NSInteger row = [indexPath row];
if (row == 0 && row == sectionRows - 1)
{
rowBackground = [UIImage imageNamed:@"topAndBottomRow.png"];
selectionBackground = [UIImage imageNamed:@"topAndBottomRowSelected.png"];
}
else if (row == 0)
{
rowBackground = [UIImage imageNamed:@"topRow.png"];
selectionBackground = [UIImage imageNamed:@"topRowSelected.png"];
}
else if (row == sectionRows - 1)
{
rowBackground = [UIImage imageNamed:@"bottomRow.png"];
selectionBackground = [UIImage imageNamed:@"bottomRowSelected.png"];
}
else
{
rowBackground = [UIImage imageNamed:@"middleRow.png"];
selectionBackground = [UIImage imageNamed:@"middleRowSelected.png"];
}
((UIImageView *)cell.backgroundView).image = rowBackground;
((UIImageView *)cell.selectedBackgroundView).image = selectionBackground;
cell.imageView.image = [UIImage imageNamed:@"Example_Image.png"];
#else
cell.text = @"Example";
#endif
return cell;
}
对我来说,解决这个问题的最好方法就是压倒一切-(void)layoutSubviews
in MyCell:UITableViewCell
在这里,您不仅可以看到删除按钮自定义位置,还可以重新定位编辑和重新排序控件Edit mode
- (void)layoutSubviews
{
[super layoutSubviews];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:0.0f];
for (UIView *subview in self.subviews) {
if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellDeleteConfirmationControl"]) {
CGRect newFrame = subview.frame;
newFrame.origin.x = 200;
subview.frame = newFrame;
}
else if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellEditControl"]) {
CGRect newFrame = subview.frame;
newFrame.origin.x = 100;
subview.frame = newFrame;
}
else if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellReorderControl"]) {
CGRect newFrame = subview.frame;
newFrame.origin.x = 200;
subview.frame = newFrame;
}
}
[UIView commitAnimations];
}
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