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CellBox.m
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executable file
·289 lines (268 loc) · 11.8 KB
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//
// CellBox.m
// CellBox_OC
//
// Created by Jx on 15/7/9.
// Copyright © 2015年 Jx. All rights reserved.
/*
Example：[[[CellBox alloc]init:2]show];
*/
#import "CellBox.h"
#import "LineLayout.h"
#import "Cell.h"
#define EdgeInsets 24.0
@implementation CellBox
- (instancetype)init: (CGRect)cvcFrame numOfCell: (int) cellsNum{
cellNum = cellsNum;
cellNow = 1;
cellSize = CGSizeMake(cvcFrame.size.width - EdgeInsets * 2, cvcFrame.size.height - 20);
collectionViewFrame = cvcFrame;
minimumLineSpacing = 12;
mainCellLineSpacing = 24;
LineLayout *lineLayout = [[LineLayout alloc] init:cellSize withMinimumLineSpacing:12 andMainCellLineSpacing:24];
self = [super initWithCollectionViewLayout:lineLayout];
return self;
}
-(void)viewDidLoad{
self.collectionView.decelerationRate = 0.1;
self.collectionView.showsHorizontalScrollIndicator = NO;
self.collectionView.showsVerticalScrollIndicator = NO;
self.collectionView.backgroundColor = [UIColor clearColor];
cellID = [_cellDataSourcedDelegate registerCellClassForCllectionView:self.collectionView];
isThouch = NO;
stateOfSlide = NOT_SLIDE;
if (cellNum == 1) {
[self.collectionView setScrollEnabled:NO];
}
}
- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section{
return 5;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
UICollectionViewCell *cell;
if (cellNow == 1 && cellNow != cellNum) {
switch (indexPath.item) {
case 0:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNum];
}
break;
case 1:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNum];
}
break;
case 2:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:1];
}
break;
case 3:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:2];
}
break;
case 4:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:2];
}
break;
default:
break;
}
}else if(cellNow == cellNum){
switch (indexPath.item) {
case 0:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow - 1];
}
break;
case 1:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow - 1];
}
break;
case 2:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow];
}
break;
case 3:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:1];
}
break;
case 4:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:1];
}
break;
default:
break;
}
}else{
switch (indexPath.item) {
case 0:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow - 1];
}
break;
case 1:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow - 1];
}
break;
case 2:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow];
}
break;
case 3:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow + 1];
}
break;
case 4:
if (_cellDataSourcedDelegate) {
cell = [_cellDataSourcedDelegate collectionView:collectionView cellForItemAtIndexPath:indexPath cellWithIdentifier:cellID cellWantsIndex:cellNow + 1];
}
break;
default:
break;
}
}
if (cellNum == 1) {
if (indexPath.item != 2) {
cell.hidden = YES;
}
}
return cell;
}
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
return UIInterfaceOrientationIsLandscape(toInterfaceOrientation);
}
- (UIImage *)scaleToSize:(UIImage *)img size:(CGSize)size{
// 创建一个bitmap的context
// 并把它设置成为当前正在使用的context
UIGraphicsBeginImageContext(size);
// 绘制改变大小的图片
[img drawInRect:CGRectMake(0, 0, size.width, size.height)];
// 从当前context中创建一个改变大小后的图片
UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext();
// 使当前的context出堆栈
UIGraphicsEndImageContext();
// 返回新的改变大小后的图片
return scaledImage;
}
-(void)show:(UIViewController *)lastViewController{
// blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
// blurView = [[UIVisualEffectView alloc]initWithEffect:blurEffect];
// blurView.alpha = 0.8;
// blurView.frame = CGRectMake(0, 20, lastViewController.view.bounds.size.width, lastViewController.view.bounds.size.height);
self.view.frame = collectionViewFrame;
// blurView.frame = collectionViewFrame;
// [lastViewController.view addSubview:blurView];
[lastViewController.view addSubview:self.view];
[lastViewController addChildViewController:self];
}
- (void)close{
//[self.collectionView removeFromSuperview];
[blurView removeFromSuperview];
[self.view removeFromSuperview];
[self removeFromParentViewController];
@try {
[_cellDataSourcedDelegate collectionViewColsed];
}
@catch (NSException *exception) {
NSLog(@"Delegate not work able");
}
}
- (UIImage *)makeAImage:(UIColor *)color size:(CGRect)rect{
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [color CGColor]);
CGContextFillRect(context, rect);
UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return img;
}
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
[self.collectionView setScrollEnabled:YES];
if (_cellDataSourcedDelegate) {
[_cellDataSourcedDelegate collectionView:self didSelectItemAtIndexPath:indexPath];
}
if (cellNum == 1) {
[self.collectionView setScrollEnabled:NO];
}
}
-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
isThouch = YES;
scrollView.decelerationRate = 0.1;
}
-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
if (decelerate && isThouch)
{
dispatch_async(dispatch_get_main_queue(), ^{
printf("STOP IT!!\n");
[scrollView setContentOffset:scrollView.contentOffset animated:NO];
});
isThouch = NO;
CGPoint offset = [self targetContentOffsetForProposedContentOffset:self.collectionView.contentOffset];
NSLog(@"%f,%f",offset.x,self.collectionView.contentOffset.x);
dispatch_async(dispatch_get_main_queue(), ^{
printf("STOP IT!!\n");
///////////////
[scrollView setContentOffset:offset animated:YES];
});
}else if (decelerate){
}
}
-(void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView{
[self reloadCells];
if (self.cellDataSourcedDelegate && stateOfSlide != NOT_SLIDE) {
@try {
if (stateOfSlide == SLIDE_LEFT) {
[self.cellDataSourcedDelegate collectionView:self didSlideAtItem:[self.collectionView cellForItemAtIndexPath:[NSIndexPath indexPathForItem:1 inSection:0]]];
}else{
[self.cellDataSourcedDelegate collectionView:self didSlideAtItem:[self.collectionView cellForItemAtIndexPath:[NSIndexPath indexPathForItem:3 inSection:0]]];
}
}
@catch (NSException *exception) {
}
}
}
- (CGPoint)targetContentOffsetForProposedContentOffset:(CGPoint)proposedContentOffset{
CGPoint pointAfterSlide;
CGFloat rightSlideThreshold = 10 + cellSize.width * 2 + minimumLineSpacing * 2 - mainCellLineSpacing + cellSize.width / 4;
CGFloat leftSlideThreshold = 10 + cellSize.width + minimumLineSpacing + cellSize.width + minimumLineSpacing - cellSize.width / 4;
if (proposedContentOffset.x >= rightSlideThreshold) {
stateOfSlide = SLIDE_RIGHT;
if (cellNow != cellNum) {
cellNow++;
}else{
cellNow = 1;
}
pointAfterSlide = CGPointMake(10 + cellSize.width * 3 + minimumLineSpacing * 3 - mainCellLineSpacing, proposedContentOffset.y);
}else{
if (proposedContentOffset.x <= leftSlideThreshold) {
stateOfSlide = SLIDE_LEFT;
if (cellNow != 1) {
cellNow--;
}else{
cellNow = cellNum;
}
pointAfterSlide = CGPointMake(10 + cellSize.width + minimumLineSpacing - mainCellLineSpacing, proposedContentOffset.y);
}else{
pointAfterSlide = CGPointMake(10 + cellSize.width * 2 + minimumLineSpacing * 2 - mainCellLineSpacing, proposedContentOffset.y);
stateOfSlide = NOT_SLIDE;
}
}
return pointAfterSlide;
}
- (void)reloadCells{
dispatch_async(dispatch_get_main_queue(), ^{
[self.collectionView reloadData];
[self.collectionView setContentOffset: CGPointMake(10 + (collectionViewFrame.size.width - 48) * 2 + minimumLineSpacing * 2 - mainCellLineSpacing, 0) animated:NO];
});
}
@end