UITableview 和 UICollectionView 在ios开发中运用的十分广泛:接下介绍一下各个的用法:(xib的使用方法:)
一.UItableview 的使用代理方法:<UITableviewDatasource ,UITableDelegate>
1.首先定制好cell在xib上面,和拉取需要的属性:如何所示
在cell.h中拉取属性,全部暴露出来:
#import <UIKit/UIKit.h>
@interface JingpinTableViewCell : UITableViewCell
@property (weak, nonatomic) IBOutlet UIImageView *iconImageview;
@property (weak, nonatomic) IBOutlet UILabel *ProductTitleLabel;
@property (weak, nonatomic) IBOutlet UILabel *ProductDetailLabel;
@property (weak, nonatomic) IBOutlet UILabel *ProductLabel;
@end
在cell.m中不写任何属性:
#import "JingpinTableViewCell.h"
@implementation JingpinTableViewCell
- (void)awakeFromNib {
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
@end
2.在controllerview.xib里面拉取tableview,拉取属性:
3.在controllerview.h实现文件
#import <UIKit/UIKit.h>
#import "MyViewController.h"
@interface JingpinViewController : MyViewController
@end
4.controllerview.m的实现文件:
#define JINGPINCELL @"JingPinCell"
#import "JingpinViewController.h"
#import "JingpinTableViewCell.h"
#import "UIImageView+WebCache.h"
#import "Goods.h"
#import "MyDBHelper.h"
#import "MBProgressHUD+MJ.h"
#import "ShopCarViewController.h"
@interface JingpinViewController()<UITableViewDataSource,UITableViewDelegate,UIAlertViewDelegate>
@property (weak, nonatomic) IBOutlet UITableView *homeTableView;
@property (nonatomic,strong)NSArray *dataArray;
@end
@implementation JingpinViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self.homeTableView registerNib:[UINib nibWithNibName:@"JingpinTableViewCell" bundle:[NSBundle mainBundle]] forCellReuseIdentifier:JINGPINCELL ];
self.dataArray = [[NSArray alloc]init];
}
#pragma mark UITableViewDelagate
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return self.dataArray.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
JingpinTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:JINGPINCELL forIndexPath:indexPath];
//模型开发
int row = (int)indexPath.row;
Goods *goods = self.dataArray[row];
[cell.iconImageview sd_setImageWithURL:[NSURL URLWithString:goods.imageUrl]placeholderImage:nil];//加载图片
cell.ProductTitleLabel.text = goods.name;
cell.ProductDetailLabel.text = goods.info;
cell.ProductLabel.text = [NSString stringWithFormat:@"%.2f",goods.price];
return cell;
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return 80;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
int row = (int)indexPath.row;
UIAlertView *alterview = [[UIAlertView alloc]initWithTitle:@"请选择操作" message:nil delegate :self cancelButtonTitle:@"取消" otherButtonTitles:@"立即购买",@"加入购物车", nil];
alterview.tag = row;
[alterview show];
}
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
{
int row = (int)alertView.tag;
Goods *g = self.dataArray[row];
Goods *good = [[Goods alloc]init];
good.goodsId = g.goodsId;
good.count = 1;
if (buttonIndex == 1) {
NSLog(@"立即购买");
ShopCarViewController *shopCarVC = [[ShopCarViewController alloc]init];
shopCarVC.arry_gvc = self.dataArray;
shopCarVC.fromCart = NO;
shopCarVC.liji_arry = [[NSMutableArray alloc]initWithObjects:good , nil ];
[self presentViewController:shopCarVC animated:NO completion:nil];
}
else if (buttonIndex == 2){
NSLog(@"加入到购物车");
[[MyDBHelper getInstance]addGoodToCar:good];
[MBProgressHUD showSuccess:@"添加商品成功,请到购物车里面查看"];
}
}
}
- (IBAction)backBtn:(UIButton *)sender {
[self dismissViewControllerAnimated:NO completion:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
效果图:
二.uicollecview的使用方法:<UIcollectionviewDelegate,UIcollectionDatasouce ,UICollectionDelegateFewlayout>
1.定制cell在和拉取属性:
cell.h的实现文件:
#import <UIKit/UIKit.h>
@interface FenleiCollectionViewCell : UICollectionViewCell
@property (weak, nonatomic) IBOutlet UIImageView *iconImageview;
@property (weak, nonatomic) IBOutlet UILabel *titleLabel;
@end
cell.m的实现文件:
#import "FenleiCollectionViewCell.h"
@implementation FenleiCollectionViewCell
- (void)awakeFromNib {
}
@end
FenleiCollectionReusableView.h文件 (collection的头部view)
#import <UIKit/UIKit.h>
@interface FenleiCollectionReusableView : UICollectionReusableView
@property (weak, nonatomic) IBOutlet UILabel *titlelabe;
@end
2.在collecview.xib里面collecview的代理方法;<>
collecview.m的实现文件:
#import "FenleiViewController.h"
#import "FenleiCollectionViewCell.h"
#import "UIImageView+WebCache.h"
#import "Goods.h"
#import "MyDBHelper.h"
#import "ShopCarViewController.h"
#import "MBProgressHUD+MJ.h"
#import "FenleiCollectionReusableView.h"
@interface FenleiViewController ()<UICollectionViewDataSource,UICollectionViewDelegate,UIAlertViewDelegate,UICollectionViewDelegateFlowLayout>
@property (weak, nonatomic) IBOutlet UICollectionView *collectionView;
@property (nonatomic,strong)NSArray *array;
@property (nonatomic,strong)NSMutableArray *array1, *array2 ,*array3,*array4,*array5;
@end
@implementation FenleiViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.array = [[NSArray array]init];
self.array1 = [[NSMutableArray alloc]init];
self.array2 = [[NSMutableArray alloc]init];
self.array3 = [[NSMutableArray alloc]init];
self.array4 = [[NSMutableArray alloc]init];
self.array5 = [[NSMutableArray alloc]init];
self.collectionView.delegate = self;
self.collectionView.dataSource = self;
//注册头部
[self.collectionView registerNib:[UINib nibWithNibName:@"FenleiCollectionReusableView" bundle:[NSBundle mainBundle]] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"FenleiCollectionReusableView"];
[self.collectionView registerNib:[UINib nibWithNibName:@"FenleiCollectionViewCell" bundle:[NSBundle mainBundle]] forCellWithReuseIdentifier:@"FenleiCollectionViewCell"];
//// tap手势
// UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(touch:)];
// [self.collectionView addGestureRecognizer:tap];
}
-(void)touch:(UITapGestureRecognizer *)gesture{
CGPoint point = [gesture locationInView:self.collectionView];
if (gesture.state == UIGestureRecognizerStateBegan) {
NSLog(@"tap");
NSIndexPath *indexpath = [self.collectionView indexPathForItemAtPoint:point];
if (indexpath == nil) {
}
else{
UIAlertView *alterview = [[UIAlertView alloc]initWithTitle:@"请选择操作" message:nil delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"立即购买",@"加入购物车", nil];
alterview.tag = indexpath.row;
[alterview show];
}
}
}
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
int row = (int)alertView.tag;
Goods *good = self.array[row];
if (buttonIndex == 1) {
//立即购买
ShopCarViewController *shopVC = [[ShopCarViewController
alloc]init];
shopVC.fromCart = NO;
shopVC.arry_gvc = self.array;
shopVC.liji_arry = [[NSMutableArray alloc]initWithObjects:good, nil];
[self presentViewController:shopVC animated:NO completion:nil];
}
if (buttonIndex == 2) {
//加入购物车
[[MyDBHelper getInstance]addGoodToCar:good];
[MBProgressHUD showSuccess:@"成功加入到购物车"];
}
}
-(void)setData:(NSArray *)data{
self.array = data;
for (Goods *g in self.array) {
NSString *type = g.type;
if ([type isEqualToString:@"智能照明"]) {
[self.array1 addObject:g];
}
else if ([type isEqualToString:@"智能电工"]){
[self.array2 addObject:g];
}
else if ([type isEqualToString:@"智能家电"]){
[self.array3 addObject:g];
}
else if ([type isEqualToString:@"智能传感"]){
[self.array4 addObject:g];
}
else if ([type isEqualToString:@"智能遥控"]){
[self.array5 addObject:g];
}
}
[self.collectionView reloadData];
}
#pragma mark - UICollection
//分成几个区默认为1
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
return 5;
}
//返回的数据的多少
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
switch ( section) {
case 0:
return self.array1.count;
break;
case 1:
return self.array2.count;
break;
case 2:
return self.array3.count;
break;
case 3:
return self.array4.count;
break;
case 4:
return self.array5.count;
break;
default:
break;
}
return 0;
}
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
FenleiCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"FenleiCollectionViewCell" forIndexPath:indexPath];
int section= (int)indexPath.section;
int row = (int)indexPath.row;
Goods *goods;
switch (section) {
case 0:
goods = self.array1[row];
break;
case 1:
goods = self.array2[row];
break;
case 2:
goods = self.array3[row];
break;
case 3:
goods = self.array4[row];
break;
case 4:
goods = self.array5[row];
break;
default:
break;
}
[cell.iconImageview sd_setImageWithURL:[NSURL URLWithString:goods.imageUrl]];
cell.titleLabel.text = goods.name;
return cell;
}
//上面图标的方法
-(UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath{
FenleiCollectionReusableView *view =[collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"FenleiCollectionReusableView" forIndexPath:indexPath];
int row = (int)indexPath.section;
switch (row) {
case 0:
view.titlelabe.text = @"智能照明";
break;
case 1:
view.titlelabe.text = @"智能家电";
break;
case 2:
view.titlelabe.text = @"智能电工";
break;
case 3:
view.titlelabe.text = @"智能传感";
break;
case 4:
view.titlelabe.text = @"智能遥控器";
break;
default:
break;
}
return view;
}
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
}
#pragma mark - UICollectionViewDelegateFlowlayout(流布局)
// 返回item的大小
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
return CGSizeMake(70, 70);
}
//返回是上下左右的宽度
//- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section{
// return UIEdgeInsetsMake(10, 10, 0, 10);
//
//}
//- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section{
//
// return 0;
//}
////item的每个之间的间隙
//- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section{
//
// return 0;
//
//}
////头部的距离
//- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section{
//
//
// return CGSizeMake(0, 0);
//}
//// 尾部的距离
//- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section{
//
// return CGSizeMake(0, 10);
//
//}
- (IBAction)backBtn:(UIButton *)sender {
[self dismissViewControllerAnimated:NO completion:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
最后的效果图: