关于UITableViewCell和UICollectionViewCell圆切角+Cell的偏移量#
关于UITableViewCell和UICollectionViewCell圆切角+Cell的偏移量#
一些公共的#
@implementation UITableViewCell (BaseCellProtocol)
/// 获取这个UITableViewCell所承载的UITableView
-(UITableView *)jobsGetCurrentTableView{
return (UITableView *)self.superview;
}
/// 获取当前的UITableViewCell对应的indexPath
-(NSIndexPath *)jobsGetCurrentIndexPath{
return [(UITableView *)self.jobsGetCurrentTableView indexPathForCell:self];
}
/// 获取当前的UITableViewCell对应的section
-(NSInteger)jobsGetCurrentNumberOfSections{
return [self.jobsGetCurrentTableView numberOfSections];
}
/// 获取当前的UITableViewCell对应的row
-(NSInteger)jobsGetCurrentNumberOfRowsInSection{
return [self.jobsGetCurrentTableView numberOfRowsInSection:self.jobsGetCurrentIndexPath.section];
}
@end@implementation UICollectionViewCell (UICollectionViewCellProtocol)
/// 获取这个UICollectionViewCell所承载的UICollectionView
-(UICollectionView *)jobsGetCurrentCollectionView{
return (UICollectionView *)self.superview;
}
/// 获取当前的UICollectionViewCell对应的indexPath
-(NSIndexPath *)jobsGetCurrentIndexPath{
return [(UICollectionView *)self.jobsGetCurrentCollectionView indexPathForCell:self];
}
/// 获取当前的UICollectionViewCell对应的section
-(NSInteger)jobsGetCurrentNumberOfSections{
return [self.jobsGetCurrentCollectionView numberOfSections];
}
/// 获取当前的UICollectionViewCell对应的item
-(NSInteger)jobsGetCurrentNumberOfItemsInSection{
return [self.jobsGetCurrentCollectionView numberOfItemsInSection:self.jobsGetCurrentIndexPath.section];
}
@end/// 附加偏移量以后的大小
-(CGRect)dx:(CGFloat)dx dy:(CGFloat)dy{
/**
CGRectInset会进行平移和缩放两个操作;CGRectOffset做的只是平移
CGRectInset(CGRect rect, CGFloat dx, CGFloat dy),
三个参数:
rect：待操作的CGRect；
dx：为正数时，向右平移dx，宽度缩小2dx。为负数时，向左平移dx，宽度增大2dx；
dy：为正数是，向下平移dy，高度缩小2dy。为负数是，向上平移dy，高度增大2dy。
*/
return CGRectInset(self.bounds,dx,dy);/// 获取显示区域大小
}- 这种方式，只能统一的设置同一种样式，并不能满足自定义需求
cell.contentView.layer.cornerRadius = cell.layer.cornerRadius = JobsWidth(8);
cell.contentView.layer.borderWidth = cell.layer.borderWidth = JobsWidth(1);
cell.contentView.layer.borderColor = cell.layer.borderColor = RGBA_COLOR(255, 225, 144, 1).CGColor;
cell.contentView.layer.masksToBounds = cell.layer.masksToBounds = YES;1、关于UITableView.UITableViewCell#
1.1、圆切角#
1.1.1、以section为单位，每个section的第一行和最后一行的cell圆角化处理【cell之间没有分割线】#
/// 以section为单位，每个section的第一行和最后一行的cell圆角化处理【cell之间没有分割线】
-(__kindof CALayer *)roundedCornerFirstAndLastCellByTableView:(UITableView *)tableView
indexPath:(NSIndexPath *)indexPath
layerConfig:(JobsLocationModel *)layerConfig{
// 关闭分割线
tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
@jobs_weakify(self)
if (jobsZeroSizeValue(layerConfig.roundingCornersRadii)) layerConfig.roundingCornersRadii = CGSizeMake(JobsWidth(10.0), JobsWidth(10.0));
// 当前 section 的总行数
NSInteger numberOfRows = tableView.rowsInSection(indexPath.section);
// 初始化将要设置的圆角类型
UIRectCorner corner = 0;
if (numberOfRows == 1) {
corner = UIRectCornerAllCorners;
} else if (indexPath.row == 0) {
corner = UIRectCornerTopLeft | UIRectCornerTopRight;
} else if (indexPath.row == numberOfRows - 1) {
corner = UIRectCornerBottomLeft | UIRectCornerBottomRight;
} else {
// 中间 cell，无圆角和边框
self.layer.mask = nil;
// 移除边框 Layer（避免复用残留）
NSArray *sublayers = self.layer.sublayers.copy;
for (CALayer *sublayer in sublayers) {
if ([sublayer.name isEqualToString:@"rounded-border-layer"]) {
[sublayer removeFromSuperlayer];
}
}return self.layer;
}
// 设置圆角路径
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds
byRoundingCorners:corner
cornerRadii:layerConfig.roundingCornersRadii];
self.layer.mask = jobsMakeCAShapeLayer(^(__kindof CAShapeLayer * _Nullable layer) {
@jobs_strongify(self)
layer.frame = self.bounds;
layer.path = maskPath.CGPath;
});
// 添加边框 Layer（可选）
if (layerConfig.layerBorderCor && layerConfig.borderWidth > 0) {
// 移除之前旧的 border layer，避免复用叠加
NSArray *sublayers = self.layer.sublayers.copy;
for (CALayer *sublayer in sublayers) {
if ([sublayer.name isEqualToString:@"rounded-border-layer"]) {
[sublayer removeFromSuperlayer];
}
}
self.layer.addSublayer(jobsMakeCAShapeLayer(^(__kindof CAShapeLayer * _Nullable borderLayer) {
@jobs_strongify(self)
borderLayer.frame = self.bounds;
borderLayer.path = maskPath.CGPath;
borderLayer.strokeColor = layerConfig.layerBorderCor.CGColor;
borderLayer.fillColor = UIColor.clearColor.CGColor;
borderLayer.lineWidth = layerConfig.borderWidth;
borderLayer.name = @"rounded-border-layer";
}));
}return self.layer;
}且不描边顶部
/// 以 section 为单位，仅对每个 section 的最后一行 cell 做圆角处理（cell 之间没有分割线），且不描边顶部
-(__kindof CALayer *)roundedCornerLastCellByTableView:(UITableView *)tableView
indexPath:(NSIndexPath *)indexPath
layerConfig:(JobsLocationModel *)layerConfig {
tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
NSInteger numberOfRows = [tableView numberOfRowsInSection:indexPath.section];
@jobs_weakify(self)
if (jobsZeroSizeValue(layerConfig.roundingCornersRadii)) {
layerConfig.roundingCornersRadii = CGSizeMake(JobsWidth(10.0), JobsWidth(10.0));
}
if (indexPath.row == numberOfRows - 1) {
// 当前为该 section 的最后一个 cell，处理圆角遮罩
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds
byRoundingCorners:(UIRectCornerBottomLeft | UIRectCornerBottomRight)
cornerRadii:layerConfig.roundingCornersRadii];
self.layer.mask = jobsMakeCAShapeLayer(^(__kindof CAShapeLayer * _Nullable layer) {
@jobs_strongify(self)
layer.frame = self.bounds;
layer.path = maskPath.CGPath;
});
// 处理边框
if (layerConfig.layerBorderCor && layerConfig.borderWidth > 0) {
// 移除旧的边框图层
NSArray *sublayers = self.layer.sublayers.copy;
for (CALayer *sublayer in sublayers) {
if ([sublayer.name isEqualToString:@"rounded-border-layer"]) {
[sublayer removeFromSuperlayer];
}
}
CGFloat width = CGRectGetWidth(self.bounds);
CGFloat height = CGRectGetHeight(self.bounds);
CGFloat radius = layerConfig.roundingCornersRadii.height;
UIBezierPath *borderPath = [UIBezierPath bezierPath];
// 左下圆弧起点
[borderPath moveToPoint:CGPointMake(0, height - radius)];
// 左下圆角
[borderPath addArcWithCenter:CGPointMake(radius, height - radius)
radius:radius
startAngle:M_PI
endAngle:M_PI_2
clockwise:NO];
// 底边线到右下角
[borderPath addLineToPoint:CGPointMake(width - radius, height)];
// 右下圆角
[borderPath addArcWithCenter:CGPointMake(width - radius, height - radius)
radius:radius
startAngle:M_PI_2
endAngle:0
clockwise:NO];
// 右边竖线往上
[borderPath addLineToPoint:CGPointMake(width, 0)];
// 👉 左边竖线补充（修复左边断线问题）
[borderPath moveToPoint:CGPointMake(0, height - radius)];
[borderPath addLineToPoint:CGPointMake(0, 0)];
// 添加边框图层
self.layer.addSublayer(jobsMakeCAShapeLayer(^(__kindof CAShapeLayer * _Nullable borderLayer) {
@jobs_strongify(self)
borderLayer.frame = self.bounds;
borderLayer.path = borderPath.CGPath;
borderLayer.strokeColor = layerConfig.layerBorderCor.CGColor;
borderLayer.fillColor = UIColor.clearColor.CGColor;
borderLayer.lineWidth = layerConfig.borderWidth;
borderLayer.name = @"rounded-border-layer";
}));
}
} else {
// 非最后一个 cell，清除圆角遮罩和边框
self.layer.mask = nil;
NSArray *sublayers = self.layer.sublayers.copy;
for (CALayer *sublayer in sublayers) {
if ([sublayer.name isEqualToString:@"rounded-border-layer"]) {
[sublayer removeFromSuperlayer];
}
}
}return self.layer;
}1.1.2、除了最后一行以外，所有的cell的最下面的线的颜色为 layerConfig.layerBorderCor#
/// 除了最后一行以外，所有的cell的最下面的线的颜色为：layerConfig.layerBorderCor
/// - Parameters:
/// - indexPath: indexPath
/// - bounds: bounds
/// - numberOfRowsInSection: 当前的UITableViewCell对应的section的的row个数
/// - layerConfig: layer的配置文件
-(void)tableViewMakesLastRowCellAtIndexPath:(NSIndexPath *_Nonnull)indexPath
bounds:(CGRect)bounds
numberOfRowsInSection:(NSInteger)numberOfRowsInSection
layerConfig:(JobsLocationModel *)layerConfig{
if (!indexPath) return;
if (!layerConfig.layerBorderCor) layerConfig.layerBorderCor = JobsWhiteColor;
if (indexPath.row != numberOfRowsInSection - 1) {
/// 将图层添加到cell的图层中,并插到最底层
[self.layer insertSublayer:jobsMakeCAShapeLayer(^(__kindof CAShapeLayer * _Nullable layer) {
layer.borderWidth = layerConfig.borderWidth;
layer.strokeColor = layerConfig.layerBorderCor.CGColor;
layer.path = jobsMakeBezierPath(^(__kindof UIBezierPath * _Nullable data) {
[data moveToPoint:CGPointMake(bounds.origin.x, bounds.size.height)];// 起点
[data addLineToPoint:CGPointMake(bounds.origin.x + bounds.size.width, bounds.size.height)];// 其他点
}).CGPath;
}) atIndex:1];
}
}1.1.3、除了第一行以外，所有的cell的最上面的线为：layerConfig.layerBorderCor#
/// 除了第一行以外，所有的cell的最上面的线为：layerConfig.layerBorderCor
/// - Parameters:
/// - indexPath: indexPath
/// - bounds: bounds
/// - numberOfRowsInSection: 当前的UITableViewCell对应的section的的row个数
/// - layerConfig: layer的配置文件
-(void)tableViewMakesFirstRowCellAtIndexPath:(NSIndexPath *_Nonnull)indexPath
bounds:(CGRect)bounds
numberOfRowsInSection:(NSInteger)numberOfRowsInSection
layerConfig:(JobsLocationModel *)layerConfig{
if (!indexPath) return;
if (!layerConfig.layerBorderCor) layerConfig.layerBorderCor = JobsWhiteColor;
if(indexPath.row){
/// 将图层添加到cell的图层中,并插到最底层
[self.layer insertSublayer:jobsMakeCAShapeLayer(^(__kindof CAShapeLayer * _Nullable layer) {
layer.borderWidth = layerConfig.borderWidth;
layer.strokeColor = layerConfig.layerBorderCor.CGColor;
layer.path = jobsMakeBezierPath(^(__kindof UIBezierPath * _Nullable linePath) {
[linePath moveToPoint:CGPointMake(bounds.origin.x, 0)];/// 起点
[linePath addLineToPoint:CGPointMake(bounds.origin.x + bounds.size.width,0)];/// 其他点
}).CGPath;
}) atIndex:1];
}
}1.1.4、调用示例#
- (void)tableView:(UITableView *)tableView
willDisplayCell:(UITableViewCell *)cell
forRowAtIndexPath:(NSIndexPath *)indexPath{
NSInteger numberOfRows = [tableView numberOfRowsInSection:indexPath.section];
if (indexPath.row == numberOfRows - 1) {
/// 以 section 为单位，仅对每个 section 的最后一行 cell 做圆角处理（cell 之间没有分割线），且不描边顶部
[cell roundedCornerLastCellByTableView:tableView
indexPath:indexPath
layerConfig:jobsMakeLocationModel(^(__kindof JobsLocationModel * _Nullable model) {
model.roundingCornersRadii = CGSizeMake(JobsWidth(10.0), JobsWidth(10.0));
model.borderWidth = JobsWidth(0.5f);
model.layerBorderCor = JobsGrayColor;
})];
}else{
/// 只描 UITableViewCell 的左右两边
[cell leftAndRightLineCellByTableView:tableView
indexPath:indexPath
layerConfig:jobsMakeLocationModel(^(__kindof JobsLocationModel * _Nullable model) {
model.borderWidth = JobsWidth(0.5f);
model.layerBorderCor = JobsGrayColor;
})];
}
}1.2、X、Y的偏移量#
- 对单个cell的偏移：需要在cell的子类里面复写父类方法-(void)setFrame:(CGRect)frame
详见@implementation UITableViewCell (Margin)
// 需要在具体的子类去实现
// 如果在分类调用，则出现异常
-(void)setFrame:(CGRect)frame{
NSLog(@"self.offsetXForEach = %f",self.offsetXForEach);
NSLog(@"self.offsetYForEach = %f",self.offsetYForEach);
frame.origin.x += self.offsetXForEach;
frame.origin.y += self.offsetYForEach;
frame.size.height -= self.offsetYForEach * 2;
frame.size.width -= self.offsetXForEach * 2;
[super setFrame:frame];
}- 但是对于以section为单位基准的圆角处理
参见：1.1的调用示例2、关于UICollectionView.UICollectionViewCell#
2.1、圆切角#
2.1.1、对UICollectionView上的每一组的第一个和最后一个UICollectionViewCell进行圆切角#
对UICollectionView上的每一组的第一个和最后一个UICollectionViewCell进行圆切角
要求切第一个UICollectionViewCell的左上+右上，最后一个UICollectionViewCell的左下和右下
作用域 ：UICollectionViewCell子类的
- (void)drawRect:(CGRect)rect注意：⚠️不能写在
UICollectionViewDelegate的-(void)collectionView:(UICollectionView *)collectionView willDisplayCell:(UICollectionViewCell *)cell forItemAtIndexPath:(NSIndexPath *)indexPath方法里面，因为此时-(NSIndexPath *)jobsGetCurrentIndexPath；返回nil
-(void)cutFirstAndLastCollectionViewCellWithBackgroundCor:(UIColor *_Nullable)cellBgCor
cellOutLineCor:(UIColor *_Nullable)cellOutLineCor
bottomLineCor:(UIColor *_Nullable)bottomLineCor
borderWidth:(CGFloat)borderWidth
cornerRadiusSize:(CGSize)cornerRadiusSize
dx:(CGFloat)dx
dy:(CGFloat)dy{
if(!cellBgCor) cellBgCor = JobsGreenColor;
if(!borderWidth) borderWidth = 1.0f;
if (!bottomLineCor) bottomLineCor = UIColor.whiteColor;
CGRect bounds = [self dx:dx dy:dy];
NSIndexPath *indexPath = self.jobsGetCurrentIndexPath;
// NSInteger numberOfSections = self.jobsGetCurrentNumberOfSections;
NSInteger numberOfItemsInSection = self.jobsGetCurrentNumberOfItemsInSection;
{
// 绘制曲线
UIBezierPath *bezierPath = nil;
{
if(numberOfItemsInSection <= 1){/// 一个section里面只有一个item = 四个角都为圆角
bezierPath = [UIBezierPath bezierPathWithRoundedRect:bounds
byRoundingCorners:UIRectCornerAllCorners
cornerRadii:cornerRadiusSize];
}else{/// 一个section里面有多个item
if(indexPath.row == 0){/// 首行 = 左上、右上角为圆角
bezierPath = [UIBezierPath bezierPathWithRoundedRect:bounds
byRoundingCorners:(UIRectCornerTopLeft | UIRectCornerTopRight)
cornerRadii:cornerRadiusSize];
}else if (indexPath.row == numberOfItemsInSection - 1){/// 末行 = 左下、右下角为圆角
bezierPath = [UIBezierPath bezierPathWithRoundedRect:bounds
byRoundingCorners:(UIRectCornerBottomLeft | UIRectCornerBottomRight)
cornerRadii:cornerRadiusSize];
}else{/// 中间的都为矩形
bezierPath = [UIBezierPath bezierPathWithRect:bounds];
}
}
}
{
CAShapeLayer *layer1 = CAShapeLayer.layer;/// 新建一个图层
layer1.borderWidth = borderWidth;/// 线宽
layer1.path = bezierPath.CGPath;/// 图层边框路径
layer1.fillColor = cellBgCor.CGColor;/// 图层填充色,也就是cell的底色
layer1.strokeColor = cellOutLineCor.CGColor;/// 图层边框线条颜色
[self.layer insertSublayer:layer1 atIndex:0];/// 将图层添加到cell的图层中,并插到最底层
}
/// 除了最后一行以外，所有的cell的最下面的线为bottomLineCor
[self makeBottomLineWithIndexPath:indexPath
bounds:bounds
numberOfItemsInSection:numberOfItemsInSection
borderWidth:borderWidth
bottomLineCor:bottomLineCor];
/// 除了第一行以外，所有的cell的最上面的线为bottomLineCor
[self makeTopLineWithIndexPath:indexPath
bounds:bounds
numberOfItemsInSection:numberOfItemsInSection
borderWidth:borderWidth
bottomLineCor:bottomLineCor];
}
}- 除了最后一行以外，所有的cell的最下面的线为bottomLineCor
-(void)makeBottomLineWithIndexPath:(NSIndexPath *)indexPath
bounds:(CGRect)bounds
numberOfItemsInSection:(NSInteger)numberOfItemsInSection
borderWidth:(CGFloat)borderWidth
bottomLineCor:(UIColor *_Nullable)bottomLineCor{
if (indexPath.row != numberOfItemsInSection - 1) {
UIBezierPath *linePath = UIBezierPath.bezierPath;
/// 起点
[linePath moveToPoint:CGPointMake(bounds.origin.x, bounds.size.height)];
/// 其他点
[linePath addLineToPoint:CGPointMake(bounds.origin.x + bounds.size.width, bounds.size.height)];
/// 新建一个图层
CAShapeLayer *layer2 = CAShapeLayer.layer;
layer2.borderWidth = borderWidth;
layer2.path = linePath.CGPath;
layer2.strokeColor = bottomLineCor.CGColor;
/// 将图层添加到cell的图层中,并插到最底层
[self.layer insertSublayer:layer2 atIndex:1];
}
}- 除了第一行以外，所有的cell的最上面的线为bottomLineCor
-(void)makeTopLineWithIndexPath:(NSIndexPath *)indexPath
bounds:(CGRect)bounds
numberOfItemsInSection:(NSInteger)numberOfItemsInSection
borderWidth:(CGFloat)borderWidth
bottomLineCor:(UIColor *_Nullable)bottomLineCor{
if(indexPath.row){
UIBezierPath *linePath = UIBezierPath.bezierPath;
/// 起点
[linePath moveToPoint:CGPointMake(bounds.origin.x, 0)];
/// 其他点
[linePath addLineToPoint:CGPointMake(bounds.origin.x + bounds.size.width,0)];
/// 新建一个图层
CAShapeLayer *layer3 = CAShapeLayer.layer;
layer3.borderWidth = borderWidth;
layer3.path = linePath.CGPath;
layer3.strokeColor = bottomLineCor.CGColor;
/// 将图层添加到cell的图层中,并插到最底层
[self.layer insertSublayer:layer3 atIndex:1];
}
}2.1.2、利用UIBezierPath，对 UICollectionViewCell 描边 + 切角#
- 作用域 ：UICollectionViewCell子类的 - (void)drawRect:(CGRect)rect
-(void)outlineByBezierPath:(UIBorderSideType)borderSideType
cellBackgroundCor:(UIColor *)cellBackgroundCor
borderColor:(UIColor *)borderColor
borderWidth:(CGFloat)borderWidth
cornerRadiusSize:(CGSize)cornerRadiusSize
roundingCorners:(UIRectCorner)roundingCorners{
if(!borderColor) borderColor = JobsRedColor;
if(!cellBackgroundCor) cellBackgroundCor = JobsGreenColor;
if(!borderWidth) borderWidth = 1.0f;
// 创建一个贝塞尔曲线
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:self.bounds
byRoundingCorners:roundingCorners
cornerRadii:cornerRadiusSize];
// 设置填充颜色为背景颜色，以保留原始背景
[cellBackgroundCor setFill];
[path fill];
// 设置边框的属性
[borderColor setStroke];// 设置边框颜色
path.lineWidth = borderWidth; // 设置边框宽度
// 添加路径到上下文中并绘制
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextAddPath(context, path.CGPath);
CGContextDrawPath(context, kCGPathStroke);
}2.1.3、利用CALayer，对 UICollectionViewCell 只描边、不切角#
- 作用域 ：UICollectionViewCell子类的
- (void)drawRect:(CGRect)rect
-(void)outlineByLayer:(UIBorderSideType)borderSideType
borderColor:(UIColor *)borderColor
borderWidth:(CGFloat)borderWidth{
if(!borderColor) borderColor = JobsRedColor;
if(!borderWidth) borderWidth = 1.0f;
CALayer *topBorder = nil;
CALayer *bottomBorder = nil;
CALayer *leftBorder = nil;
CALayer *rightBorder = nil;
if(borderSideType & UIBorderSideTypeTop || borderSideType & UIBorderSideTypeAll){
topBorder = CALayer.layer;
topBorder.borderColor = borderColor.CGColor; // 选择你想要的颜色
topBorder.borderWidth = borderWidth;// 选择边框的宽度
// 设置边框的位置和大小
topBorder.frame = CGRectMake(0,
0,
self.contentView.frame.size.width,
borderWidth);
}
if(borderSideType & UIBorderSideTypeBottom || borderSideType & UIBorderSideTypeAll){
bottomBorder = CALayer.layer;
bottomBorder.borderColor = borderColor.CGColor; // 选择你想要的颜色
bottomBorder.borderWidth = borderWidth;// 选择边框的宽度
// 设置边框的位置和大小
bottomBorder.frame = CGRectMake(0,
self.contentView.frame.size.height - borderWidth,
self.contentView.frame.size.width,
borderWidth);
}
if(borderSideType & UIBorderSideTypeLeft || borderSideType & UIBorderSideTypeAll){
leftBorder = CALayer.layer;
leftBorder.borderColor = borderColor.CGColor; // 选择你想要的颜色
leftBorder.borderWidth = borderWidth;// 选择边框的宽度
// 设置边框的位置和大小
leftBorder.frame = CGRectMake(0,
0,
borderWidth,
self.contentView.frame.size.height);
}
if(borderSideType & UIBorderSideTypeRight || borderSideType & UIBorderSideTypeAll){
rightBorder = CALayer.layer;
rightBorder.borderColor = borderColor.CGColor; // 选择你想要的颜色
rightBorder.borderWidth = borderWidth;// 选择边框的宽度
// 设置边框的位置和大小
rightBorder.frame = CGRectMake(self.contentView.frame.size.width - borderWidth,
0,
borderWidth,
self.contentView.frame.size.height);
}
if(topBorder) [self.contentView.layer addSublayer:topBorder];
if(bottomBorder) [self.contentView.layer addSublayer:bottomBorder];
if(leftBorder) [self.contentView.layer addSublayer:leftBorder];
if(rightBorder) [self.contentView.layer addSublayer:rightBorder];
}3、指定对某个View的某个角进行圆切角#
- 在这个View的具体子类里面，复写系统方法-(void)layoutSubviews;
-(void)layoutSubviews{
[super layoutSubviews];
/// 内部指定圆切角
[self layoutSubviewsCutCnrByRoundingCorners:UIRectCornerTopLeft | UIRectCornerTopRight
cornerRadii:CGSizeMake(JobsWidth(8), JobsWidth(8))];
}4、对某个View的4个角无差别进行圆切角#
[View cornerCutToCircleWithCornerRadius:JobsWidth(8)];
[View layerBorderCor:RGBA_COLOR(255, 225, 144, 1) andBorderWidth:JobsWidth(0.5f)];5、其他#
- 隐藏每个分区最后一个cell的分割线:系统分割线,移到屏幕外
- (void)tableView:(UITableView *)tableView
willDisplayCell:(UITableViewCell *)cell
forRowAtIndexPath:(NSIndexPath *)indexPath{
_tableView.separatorColor = HEXCOLOR(0xeeeeee);//改变分割线颜色
cell.separatorInset = UIEdgeInsetsMake(0, 15, 0, 15);//改变分割线长度
}