【移动应用开发技术】iOS如何使用UITableView设置全屏分隔线

【移动应用开发技术】iOS如何使用UITableView设置全屏分隔线

1.自定义cell,手动添加分割线tableView.separatorStyle

=

UITableViewCellSeparatorStyleNone;//

自绘分割线

-

(void)drawRect:(CGRect)rect

{

CGContextRef

context

=

UIGraphicsGetCurrentContext();

CGContextSetFillColorWithColor(context,

[UIColor

whiteColor].CGColor);

CGContextFillRect(context,

rect);

CGContextSetStrokeColorWithColor(context,

[UIColor

colorWithRed:0xE2/255.0f

green:0xE2/255.0f

blue:0xE2/255.0f

alpha:1].CGColor);

CGContextStrokeRect(context,

CGRectMake(0,

rect.size.height

-

1,

rect.size.width,

1));

}2.重写cell的setFrame方法,高度-1,露出背景色-

(void)setFrame:(CGRect)frame

{

frame.size.height

-=

1;

//

给cellframe赋值

[super

setFrame:frame];

}//

取消系统分割线

self.tableView.separatorStyle

=

UITableViewCellSeparatorStyleNone;

//

设置tableView背景色

self.tableView.backgroundColor

=

[UIColor

colorWithWhite:215

/

255.0

alpha:1];3.利用系统属性设置(separatorInset,layoutMargins)共需添加三句代码:-(void)viewDidLoad

{

[super

viewDidLoad];

//1.调整(iOS7以上)表格分隔线边距

if

([self.tableView

respondsToSelector:@selector(setSeparatorInset:)])

{

self.tableView.separatorInset

=

UIEdgeInsetsZero;

}

//2.调整(iOS8以上)view边距(或者在cell中设置preservesSuperviewLayoutMargins,二者等效)

if

([self.tableView

respondsToSelector:@selector(setLayoutMargins:)])

{

self.tableView.layoutMargins

=

UIEdgeInsetsZero;

}

}对cell的LayoutMargins属性的设置-(UITableViewCell

*)tableView:(UITableView

*)tableView

cellForRowAtIndexPath:(NSIndexPath

*)indexPath

{

static

NSString

*ID

=

@"cell";

FSDiscoverSpecialCell

*cell

=

[tableView

dequeueReusableCellWithIdentifier:ID];

if

(cell

==

nil)

{

cell

=

[[FSDiscoverSpecialCell

alloc]

initWithStyle:UITableViewCellStyleSubtitle

reuseIdentifier:ID];

}

//2.调整(iOS8以上)tableView边距(与上面第2步等效,二选一即可)

if

([cell

respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)])

{

cell.preservesSuperviewLayoutMargins

=

NO;

}

//3.调整(iOS8以上)view边距

if

([cell

respondsToSelector:@selector(setLayoutMargins:)])

{

[cell

setLayoutMargins:UIEdgeInsetsZero];

}

return

cell;

}三种方法优缺点比较:-(void)viewDidLoad

{

[super

viewDidLoad];

if

([self.tableView

respondsToSelector:@selector(setSeparatorInset:)])

{

[self.tableView

setSeparatorInset:UIEdgeInsetsZero];

}

if

([self.tableView

respondsToSelector:@selector(setLayoutMargins:)])

{

[self.tableView

setLayoutMargins:UIEdgeInsetsZero];

}-

(void)tableView:(UITableView

*)tableView

willDisplayCell:(UITableViewCell

*)cell

forRowAtIndexPath:(NSIndexPath

*)indexPath

{

if

([cell

respondsToSelector:@selector(setSeparatorInset:)])

{

[cell

setSeparatorInset:UIEdgeInsetsZero];

}

if

([cell

respondsToSelector:@selector(setLayoutMargins:)])

{

[cell

setLayoutMargins:UIEdgeInsetsZero];

}

}@property

(nonatomic)

UIEdgeInsets

separatorInset

NS_AVAILABLE_IOS(7_0)

UI_APPEARANCE_SELECTOR;

//

allows

customization

of

the

frame

of

cell

separators@property

(nonatomic)

UIEdgeInsets

layoutMargins

NS_AVAILABLE_IOS(8_0);/upload/information/20200623/126/120715.jpgPS:附效果图如下:/upload/information/20200623/126/120716.png/upload/information/20200623/126/120717.png/upload/information/20200623/126/120718.png/upload/information/20200623/126/120719.png附：设置UITableView的单元格分割线离屏幕左右的距离为0/upload/information/20200623/126/120720.pngif

([_tableView

respondsToSelector:@selector(setSeparatorInset:)])

{

[_tableView

setSeparatorInset:UIEdgeInsetsMake(0,0,0,0)];

}

if

([_tableView

respondsToSelector:@selector(setLayoutMargins:)])

{

[_tableView

setLayoutMargins:UIEdgeInsetsMake(0,0,0,0)];

}//代理方法

-(void)tableView:(UITableView

*)tableView

willDisplayCell:(UITableViewCell

*)cell

forRowAtIndexPath:(NSIndexPath

*)indexPath

{

if

([cell

respondsToSelector:@selector(setSeparat