爱站程序员基地1、ScrollView设置图片多个图片的展示滚动
声明绑定一个UIScrollView
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView1;@property (weak, nonatomic) IBOutlet UIScrollView *scrollView2;
(1)横向滚动
//横向滚动for (int i = 0; i < 5; i ++) {CGFloat imgH = 240;CGFloat imgW = 380;CGFloat imgY = 0;//创建一个UIImageView对象UIImageView *imgView = [[UIImageView alloc]init];//设置UIImageView中的图片NSString *imgName = [NSString stringWithFormat:@\"%02d\",i+1];imgView.image = [UIImage imageNamed:imgName];//计算每一个UIImageView在UIScrollView中的x坐标值CGFloat imgX = i * (imgW+10);//设置imgView的frameimgView.frame = CGRectMake(imgX, imgY, imgW, imgH);//把imgView添加到UIScrollView中[self.scrollView1 addSubview:imgView];}//设置UIScrollView内容的实际大小CGFloat maxW =( self.scrollView1.frame.size.width +10)* 5;self.scrollView1.contentSize = CGSizeMake(maxW, 10);
(2)纵向滚动
//纵向滚动for (int i = 0; i < 5; i ++) {CGFloat imgH = 240;CGFloat imgW = 380;CGFloat imgX = 0;//创建一个UIImageViewUIImageView *imgView = [[UIImageView alloc]init];//设置UIImageView中的图片NSString *imgName = [NSString stringWithFormat:@\"%02d\",i+1];imgView.image = [UIImage imageNamed:imgName];//计算每一个UIImageView在UIScrollView中的y坐标值CGFloat imgY = i * (imgH+10);//设置imgView的frameimgView.frame = CGRectMake(imgX, imgY, imgW, imgH);//把imgView添加到UIScrollView中[self.scrollView2 addSubview:imgView];}//设置UIScrollView内容的实际大小CGFloat maxH = (self.scrollView2.frame.size.height +10) * 5;self.scrollView2.contentSize = CGSizeMake(10, maxH);
2、TableView分组展示数据
(1)声明数组设置代理
@interface TestTableViewController ()<UITableViewDataSource,UIScrollViewDelegate>@property (strong, nonatomic) IBOutlet UITableView *tableView;@property (nonatomic,retain)NSArray *arr0;@property (nonatomic,retain)NSArray *arr00;@property (nonatomic,retain)NSArray *arr1;@property (nonatomic,retain)NSArray *arr11;@property (nonatomic,retain)NSArray *arr2;@property (nonatomic,retain)NSArray *arr22;@property (nonatomic,retain)NSArray *arr3;@end
(2)设置数组和代理
self.tableView.dataSource = self;self.tableView.delegate=self;//每组的数据_arr0 = @[@\"李大伟\",@\"李二伟\",@\"李三伟\",];_arr00 =@[@\"帮主\",@\"堂主\",@\"队长\",];_arr1 = @[@\"李四伟\",@\"李五伟\"];_arr11 = @[@\"舵主\",@\"香主\"];_arr2 = @[@\"李六伟\"];_arr22 = @[@\"光杆司令\"];_arr3 = @[@\"洪帮\",@\"山口组\",@\"黑手党\"];
(3)分组
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{return 3;}
(4)每组几行
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{if (section == 0) {return 3;}else if (section == 1) {return 2;}else{return 1;}}
(5)每行显示的内容
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{//indexPath.section //表示当前是第几组//indexPath.row //表示当前是第几行//创建单元格对象并返回UITableViewCell *cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:nil];//为单元格写入数据 //cell.textLabel.text = @\"！\";//return cell;if (indexPath.section == 0) {cell.textLabel.text = _arr0[indexPath.row];cell.detailTextLabel.text =_arr00[indexPath.row];}else if (indexPath.section == 1){cell.textLabel.text = _arr1[indexPath.row];cell.detailTextLabel.text =_arr11[indexPath.row];}else{cell.textLabel.text = _arr2[indexPath.row];cell.detailTextLabel.text =_arr22[indexPath.row];}cell.imageView.image = [UIImage imageNamed:@\"3\"];//返回单元格return cell;}
(6)每组标题
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{return _arr3[section];}
(7)每组组尾
- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section{//根据当前组的section，返回不同组的描述信息if (section == 0) {return @\"人最少的帮派\";}else if (section == 1){return @\"最可爱的帮派\";}else{return @\"最不好欺负的帮派\";}}
(8)点击弹窗
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(nonnull NSIndexPath *)indexPath{NSString *str ;if (indexPath.section==0) {str = _arr0[indexPath.row];}else if(indexPath.section==1) {str = _arr1[indexPath.row];}else{str = _arr2[indexPath.row];}// NSString *str = [NSString stringWithFormat:@\"%@\",_arr3[indexPath.section]];UIAlertController *aler = [UIAlertController alertControllerWithTitle:@\"是否拜入他的门下？\" message:str preferredStyle:UIAlertControllerStyleAlert];UIAlertAction *sureAler = [UIAlertAction actionWithTitle:@\"要么加入\" style:UIAlertActionStyleCancel handler:nil];UIAlertAction *cancelAler = [UIAlertAction actionWithTitle:@\"要么死\" style:UIAlertActionStyleDestructive handler:nil];//添加到控制器[aler addAction:cancelAler];[aler addAction:sureAler];[self presentViewController:aler animated:YES completion:nil];}
(9)实际效果图
