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//
// KWMNewGoodsCell.m
// iCemarose
//
// Created by 陈荣科 on 16/9/1.
// Copyright © 2016年 kollway. All rights reserved.
//
#import "KWMNewGoodsCell.h"
#import "KWMCollectionCell.h"
@implementation KWMNewGoodsCell{
NSInteger leftMargin;
}
static NSString *idStr = @"KWMCollectionCell";
- (void)awakeFromNib {
[super awakeFromNib];
// Initialization code
self.selectionStyle = UITableViewCellSelectionStyleNone;
self.clvNewGoods.decelerationRate = UIScrollViewDecelerationRateFast;
// 底部渐变
CAGradientLayer *gradientLy = [self shadowAsInverse:[UIColor redColor]];
_vWatch.layer.mask = gradientLy;
[self initCollectionView];
}
- (void)initCollectionView{
self.isSameBrand = NO;
self.clvNewGoods.delegate = self;
self.clvNewGoods.backgroundColor = [UIColor clearColor];
self.clvNewGoods.showsHorizontalScrollIndicator = NO;
[self.clvNewGoods registerNib:[UINib nibWithNibName:idStr bundle:nil] forCellWithReuseIdentifier:idStr];
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
if (_isDetail) {
leftMargin = 0;
}else{
leftMargin = 20;
}
layout.minimumLineSpacing = 0;
layout.minimumInteritemSpacing = 0;
layout.sectionInset = UIEdgeInsetsMake(40, leftMargin, 35, 0);
layout.itemSize = CGSizeMake(134, 180);
layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
self.clvNewGoods.collectionViewLayout = layout;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
#pragma mark - UICollectionViewDataSource
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
if(self.products && self.products.count>9){
return 10;
}
if(self.products && self.products.count>0){
return self.products.count;
}else if(self.loadStatus && self.loadStatus.cacheData){
return self.loadStatus.cacheData.count;
}else {
return 5;
}
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
KWMCollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:idStr forIndexPath:indexPath];
cell.isMore = indexPath.row == 9;
if(self.products && self.products.count>indexPath.row){
[cell setData:[self.products objectAtIndex:indexPath.row]];
}else if(self.loadStatus && self.loadStatus.cacheData && self.loadStatus.cacheData.count>indexPath.row){
[cell setData:[self.loadStatus.cacheData objectAtIndex:indexPath.row]];
}else{
[cell setData:nil];
}
//如果滑动了后面10个,尝试获取下一页
if(self.products!=nil && indexPath.row == self.products.count-10 && self.delegate!=nil){
if ([self.delegate respondsToSelector:@selector(kwm_onNexPage:)]) {
[self.delegate kwm_onNexPage:self.isSameBrand];
}
}
return cell;
}
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
if(indexPath.row == 9){
if ([self.delegate respondsToSelector:@selector(kwm_onClickMore:)]) {
[self.delegate kwm_onClickMore:self.isSameBrand];
}
return;
}
BUYProduct *selectProduct;
if(self.products!=nil && self.products.count>indexPath.row){
selectProduct = [self.products objectAtIndex:indexPath.row];
}else if(self.loadStatus && self.loadStatus.cacheData && self.loadStatus.cacheData.count>indexPath.row){
selectProduct = [self.loadStatus.cacheData objectAtIndex:indexPath.row];
}
if ([self.delegate respondsToSelector:@selector(kwm_selectCollectionCell:)]) {
[self.delegate kwm_selectCollectionCell:selectProduct];
}
NSLog(@"row = %ld",(long)indexPath.row);
}
- (NSMutableArray *)products {
if(_products == nil){
_products = [[NSMutableArray alloc] initWithCapacity:100];
}
return _products;
}
-(void)setLoadStatusData:(KWMLoadStatus *) loadStatus{
if(loadStatus){
self.loadStatus = loadStatus;
[self setData:loadStatus.data];
if(loadStatus.scrollOffset == 0){
//135为cell的宽度
NSInteger screen = UI_SCREEN_WIDTH;
NSInteger scrollIndex = (screen-20) % 135;
if(scrollIndex<35){
self.loadStatus.scrollOffset = 135 * 0.2 - scrollIndex;
}else if(scrollIndex>90){
self.loadStatus.scrollOffset = 135 * 1.2 - scrollIndex;
}
}
[self.clvNewGoods layoutIfNeeded];
[self.clvNewGoods setContentOffset:CGPointMake(loadStatus.scrollOffset, 0) animated:NO];
}else{
[self setData:nil];
}
}
-(void)setData:(NSArray *)products{
[self.products removeAllObjects];
if(products){
[self addData:products];
}
[self.clvNewGoods reloadData];
}
-(void)addData:(NSArray *)products{
if(products == nil){
return;
}
[self.products addObjectsFromArray:products];
[self.clvNewGoods reloadData];
}
-(void)scrollToTop{
[self.clvNewGoods setContentOffset:CGPointMake(0, 0) animated:NO];
}
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
//self.vWatch.hidden = NO;
self.vWatch.alpha = 1;
//底部渐变
CAGradientLayer *gradientLy = [self shadowAsInverse:[UIColor redColor]];
_vWatch.layer.mask = gradientLy;
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
//self.vWatch.alpha = 0;
}
- (CAGradientLayer *)shadowAsInverse:(UIColor *)color{
CAGradientLayer *newShadow = [[CAGradientLayer alloc] init];
CGRect newShadowFrame = CGRectMake(0, 0, 25, 180);
newShadow.frame = newShadowFrame;
newShadow.startPoint = CGPointMake(0, 0);
newShadow.endPoint = CGPointMake(1, 0);
//添加渐变的颜色组合（颜色透明度的改变）
newShadow.colors = [NSArray arrayWithObjects:
(id)[[color colorWithAlphaComponent:0.0] CGColor] ,
(id)[[color colorWithAlphaComponent:0.8] CGColor],
nil];
return newShadow;
}
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
// 实时监测scrollView.contentInset.top， 系统优化以及手动设置contentInset都会影响contentInset.top。
if(self.loadStatus){
self.loadStatus.scrollOffset = scrollView.contentOffset.x;
}
}
@end