UITableView Group类型扁平化适配iOS6.0
适配方案
tableView
// 在ViewDidLoad里调用该方法
- (void)unifyTableView:(UITableView *)tableView {
//iOS7以后将分隔线拉至边线
if ([tableView respondsToSelector:@selector(setSeparatorInset:)]) {
[tableView setSeparatorInset:UIEdgeInsetsZero];
}
if ([self.tableView respondsToSelector:@selector(setLayoutMargins:)]) {
[self.tableView setLayoutMargins:UIEdgeInsetsZero];
}
if ([self.tableView respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)]) {
self.tableView.preservesSuperviewLayoutMargins = NO;
}
//ios7以前去除布质背景
if ([[[UIDevice currentDevice]systemVersion]floatValue] < 7.0) {
[tableView setBackgroundView:nil];
}
}
// 实现UITableViewDelegate
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
if (section == 0) {
return 10.0;
} else {
return 0;
}
}tableViewCell
//系统xxxGroupCell基类中复写layoutSubViews
- (void) layoutSubviews {
[super layoutSubviews];
self.clipsToBounds = YES;
// iOS7之后拉伸分格线至顶格
if ([self respondsToSelector:@selector(setSeparatorInset:)]) {
[self setSeparatorInset:UIEdgeInsetsZero];
}
if ([self respondsToSelector:@selector(setLayoutMargins:)]) {
[self setLayoutMargins:UIEdgeInsetsZero];
}
if ([[[UIDevice currentDevice]systemVersion]floatValue] < 7.0) {
// 单元格颜色 iOS6下默认为浅灰， 更改为白色
self.backgroundColor = [UIColor whiteColor];
// group下contentView 左右各有缩进10, 调整至至cell同宽
CGRect selfFrame = self.frame;
UIView *contentView = self.contentView;
[contentView setFrame:CGRectMake(0, contentView.frame.origin.y, selfFrame.size.width, contentView.frame.size.height)];
// background frame
CGFloat deviceWidth = self.superview.frame.size.width;
CGFloat padding = 10.0;
CGFloat cellHeight = self.frame.size.height;
CGRect frame = CGRectMake(-padding, 0, deviceWidth + 2*padding, cellHeight);
self.backgroundView.frame = frame;
self.selectedBackgroundView.frame = frame;
// background imageView
NSArray *views = [self subviews];
for (UIView *subView in views) {
if ([subView isKindOfClass:[UIImageView class]] ) {
[(UIImageView *)subView setImage:nil];
[(UIImageView *)subView setImage:[[UIImage alloc]init]];
}
}
}
}UITableView iOS6.0 解构
<UITableView: 0x203f7c00;
frame = (0 142; 320 426);
clipsToBounds = YES;
autoresize = RM+BM;
gestureRecognizers = <NSArray: 0x1fdb36c0>;
layer = <CALayer: 0x1fdb31a0>;
contentOffset: {0, 0}>subviews
self.backgroundView
<UITableViewBackgroundView: 0x1fdb4400;
frame = (0 0; 320 426);
autoresize = W+H;
layer = <CALayer: 0x1fdb44b0>>imageView * 2
<UIImageView: 0x1c569f40; frame = (0 419; 320 7); alpha = 0; opaque = NO; autoresize = TM; userInteractionEnabled = NO; layer = <CALayer: 0x1c569fe0>>,
<UIImageView: 0x1c56a0a0; frame = (313 386; 7 40); alpha = 0; opaque = NO; autoresize = LM; userInteractionEnabled = NO; layer = <CALayer: 0x1c56a140>>
)两个imageView的image图片均为 用于展示横向或竖向的滑块
UITableViewCell iOS6.0 解构
<NEPGoupCell: 0x1dde01f0;
baseClass = UITableViewCell;
frame = (0 10; 480 46);
text = '参数配置(日志查看)';
autoresize = W;
animations = { position=<CABasicAnimation: 0x1dda5240>;
bounds=<CABasicAnimation: 0x1dda52a0>; };
layer = <CALayer: 0x1dde0370>>Subviews
self.contentView
<UITableViewCellContentView: 0x1dde0630;
frame = (0 1; 480 43);
gestureRecognizers = <NSArray: 0x1dde0b90>;
animations = { position=<CABasicAnimation: 0x1ddc3ea0>;
bounds=<CABasicAnimation: 0x1ddd6070>; };
layer = <CALayer: 0x1dde0820>>self.backgroundView
<UIGroupTableViewCellBackground: 0x1dde1d00;
frame = (9 0; 462 46);
opaque = NO; autoresize = W;
animations = { position=<CABasicAnimation: 0x1ddc3e50>;
bounds=<CABasicAnimation: 0x1ddc3eb0>; };
layer = <CALayer: 0x1dde1bb0>>,self.selectedBackgroundView
<UIGroupTableViewCellBackground: 0x1cdc4260;
frame = (9 0; 302 45);
layer = <CALayer: 0x1cdbfaa0>>在cell创建时即被创建，由self.selectedBackgroundView强持有，当tableview: didSelected时，系统执行[cell addSubview:self.selectedBackgroundView]
backgroundImageView
只存在于setion x row 0 ，图片为
Layers
<CALayer:0x1cde3da0;
position = CGPoint (160 88.6);
bounds = CGRect (0 0; 320 45);
delegate = <NEPGoupCell: 0x1cde3c70;
baseClass = UITableViewCell;
frame = (0 66.1; 320 45);
text = '支付';
autoresize = W;
layer = <CALayer: 0x1cde3da0>>;
sublayers = (<CALayer: 0x1cde55c0>,
<CALayer: 0x1cdbfaa0>,
<CALayer: 0x1cde3e30>,
<CALayer: 0x1cde6570>);
backgroundColor = <CGColor 0x1cdbec60>
[<CGColorSpace 0x1cd913b0> (kCGColorSpaceDeviceGray)] ( 0 0 )>subLayer 0x1cde55c0
<CALayer:0x1cde55c0; position = CGPoint (160 22.5);
bounds = CGRect (0 0; 302 45);
delegate = <UIGroupTableViewCellBackground: 0x1cde5600;
frame = (9 0; 302 45);
alpha = 0;
autoresize = W;
layer = <CALayer: 0x1cde55c0>>;
contents = <CGImage 0x1cdeec60>;
sublayers = (<CALayer: 0x1cde5320>);
opaque = YES;
opacity = 0;
rasterizationScale = 2;
contentsScale = 2>subLayer 0x1cdbfaa0
<CALayer:0x1cdbfaa0;
position = CGPoint (160 22.5);
bounds = CGRect (0 0; 302 45);
delegate = <UIGroupTableViewCellBackground: 0x1cdc4260;
frame = (9 0; 302 45);
layer = <CALayer: 0x1cdbfaa0>>;
contents = <CGImage 0x1cdc6450>;
sublayers = (<CALayer: 0x1cdc3320>);
opaque = YES;
rasterizationScale = 2;
contentsScale = 2>subLayer 0x1cde3e30
<CALayer:0x1cde3e30;
position = CGPoint (160 22.5);
bounds = CGRect (0 0; 320 43);
delegate = <UITableViewCellContentView: 0x1cde3dd0;
frame = (0 1; 320 43);
opaque = NO;
gestureRecognizers = <NSArray: 0x1cde4050>;
layer = <CALayer: 0x1cde3e30>>;
sublayers = (<CALayer: 0x1cde5180>);
backgroundColor = <CGColor 0x1cdbec60>
[<CGColorSpace 0x1cd913b0> (kCGColorSpaceDeviceGray)] ( 0 0 )>subLayer 0x1cde6570
<CALayer:0x1cde6570;
position = CGPoint (160 4.75);
bounds = CGRect (0 0; 300 7.5);
delegate = <UIImageView: 0x1cde5cc0;
frame = (10 1; 300 7.5);
opaque = NO;
userInteractionEnabled = NO;
layer = <CALayer: 0x1cde6570>>;
backgroundColor = <CGColor 0x1cdbec60> [<CGColorSpace 0x1cd913b0>
(kCGColorSpaceDeviceGray)] ( 0 0 );
opacity = 1; rasterizationScale = 1;
contentsScale = 1;
contentsCenter = CGRect (0.3745 0.998667; 0.001 0.00266667)>