本文实例为大家分享了iOS UISegmentControl实现自定义分栏效果的具体代码，供大家参考，具体内容如下
iOS 自带的UISegmentControl实现的就是类似上图的效果
但是很多用处 一般这两个分栏是两个tableView,需要左右滑动来响应分栏
下面来讲述这样的效果是怎么实现的呢？
主要那里有一根短红线，需要滑动 来切换tableView
先自定义一个SegmentView
.h
//定义block，用来传递点击的第几个按钮
typedef void (^PassValueBlock)(NSInteger index);
@interface BCLCommunitySegmentView : UIView
//定义一下block
@property (nonatomic, strong) PassValueBlock returnBlock;
@property (nonatomic, strong) UIImageView *selectImage;//这个就是短红线
//初始化数组，传入frame和名称
- (id) initWithFrame:(CGRect)frame withTitleArray:(NSArray *)array;
//block传递值方法
- (void)setReturnBlock:(PassValueBlock)returnBlock;
@end在SegmentView.m中
循环创建按钮，几个分栏创建几个按钮
- (void)creatSegmentView {
//设置按钮的宽度
_itemWidth = self.frame.size.width / _itemCounts;
//循环创建按钮
for (int i = 0; i < _itemCounts; i++) {
UIButton *button = [[UIButton alloc]initWithFrame:CGRectMake((i + 1) *_itemWidth/2, 0, _itemWidth/2, self.frame.size.height)];
[self addSubview:button];
//设置button的字
[button setTitle:_titleArray[i] forState:UIControlStateNormal];
//设置button的字颜色
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
//设置字体大小
button.titleLabel.font = [UIFont systemFontOfSize:20];
//设置居中显示
button.titleLabel.textAlignment = NSTextAlignmentCenter;
//设置tag值
button.tag = 1000 + i;
//添加点击事件
[button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
//如果是第一个，默认被选中
if (i == 0) {
button.selected = YES;
}
}
//添加一个select
_selectImage = [[UIImageView alloc]initWithFrame:CGRectMake(_itemWidth / 2, self.frame.size.height - 2, _itemWidth / 2, 2)];
_selectImage.image = [UIImage imageNamed:@"bcl_bg_community_segment_color_line"];
[self addSubview:_selectImage];
}然后设置按钮的点击事件，将点击到哪个按钮 回调过去
-(void)buttonAction:(UIButton *)button{
//当button被点击，所有的button都设为未选中状态
for (UIView *view in self.subviews) {
if ([view isKindOfClass:[UIButton class]]) {
UIButton *subButton = (UIButton*)view;
subButton.selected = NO;
subButton.titleLabel.font = [UIFont systemFontOfSize:20];
}
}
//然后将选中的这个button变为选中状态
button.selected = YES;
//通过当前的tag值设置select的位置
NSInteger index = button.tag - 1000;
[UIView animateWithDuration:0.3 animations:^{
self->_selectImage.frame = CGRectMake((1 + index)*_itemWidth/2, _selectImage.frame.origin.y, self->_selectImage.frame.size.width, _selectImage.frame.size.height);
}];
_returnBlock(index);
}在需要展现的controller中
.h
@interface BCLCommunityView : UIView
@property (nonatomic, strong) UIScrollView *scrollerView;
@property(nonatomic ,strong) UITableView *circleTableView;
@property(nonatomic ,strong) UITableView *squreTableView;
@property (nonatomic, strong)BCLCommunitySegmentView *segmentView;
@end在.m中用scrollView实现分栏的两个tableView的滑动
- (instancetype) initWithFrame:(CGRect)frame {
if(self = [super initWithFrame:frame]) {
[self setSegmentView];
_circleTableView = [self loadTableView];
_squreTableView = [self loadTableView];
_circleTableView.tag = 1;
_squreTableView.tag = 2;
_scrollerView = [[UIScrollView alloc] init];
_scrollerView.frame = CGRectMake(0, 104, KScreenW, KScreenH);
_scrollerView.pagingEnabled = YES;
_scrollerView.scrollEnabled = YES;
_scrollerView.contentSize = CGSizeMake(KScreenW * 2, KScreenH);
_scrollerView.bounces = YES;
_scrollerView.delegate = self;
[_scrollerView addSubview:_circleTableView];
[_scrollerView addSubview:_squreTableView];
_circleTableView.frame = CGRectMake(0, 0, KScreenW, KScreenH);
_squreTableView.frame = CGRectMake(KScreenW, 0, KScreenW, KScreenH);
[self addSubview:_scrollerView];
}
return self;
}
- (UITableView *)loadTableView
{
UITableView *tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, KScreenW, KScreenH) style:UITableViewStyleGrouped];
tableView.showsVerticalScrollIndicator = NO;
[tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
tableView.dataSource = self;
[self addSubview:tableView];
return tableView;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
if(tableView.tag == 1) {
return 3;
} else {
return 2;
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if(tableView.tag == 1) {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
if(!cell) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"];
}
cell.backgroundColor = [UIColor redColor];
cell.textLabel.text = @"11111";
return cell;
} else {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
if(!cell) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"];
}
return cell;
}
}scrollView代理 滑动scrollerView实现小红条的滑动
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
CGRect frame = _segmentView.selectImage.frame;
if(scrollView.contentOffset.x / KScreenW == 0) {
[UIView animateWithDuration:0.1 animations:^{
_segmentView.selectImage.frame = CGRectMake(KScreenW / 4, frame.origin.y, frame.size.width, frame.size.height);
}];
} else if(scrollView.contentOffset.x / KScreenW == 1){
[UIView animateWithDuration:0.1 animations:^{
_segmentView.selectImage.frame = CGRectMake(KScreenW / 2, frame.origin.y, frame.size.width, frame.size.height);
}];
}
}以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
