//
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// MSSAutoresizeLabelFlow.m
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// MSSAutoresizeLabelFlow
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//
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// Created by Mrss on 15/12/26.
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// Copyright © 2015年 expai. All rights reserved.
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//
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#import "MSSAutoresizeLabelFlow.h"
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#import "MSSAutoresizeLabelFlowLayout.h"
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#import "MSSAutoresizeLabelFlowCell.h"
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#import "MSSAutoresizeLabelFlowConfig.h"
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static NSString *const cellId = @"cellId";
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@interface MSSAutoresizeLabelFlow () <UICollectionViewDataSource,UICollectionViewDelegate,MSSAutoresizeLabelFlowLayoutDataSource,MSSAutoresizeLabelFlowLayoutDelegate>
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@property (nonatomic,strong) UICollectionView *collection;
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@property (nonatomic,strong) NSMutableArray *data;
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@property (nonatomic,copy) selectedHandler handler;
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@end
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@implementation MSSAutoresizeLabelFlow
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- (instancetype)initWithFrame:(CGRect)frame titles:(NSArray *)titles selectedHandler:(selectedHandler)handler {
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self = [super initWithFrame:frame];
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if (!titles.count) {
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return self;
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}
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if (self) {
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self.backgroundColor = [UIColor clearColor];
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self.data = [titles mutableCopy];
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self.handler = handler;
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[self setup];
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}
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return self;
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}
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- (void)setup {
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MSSAutoresizeLabelFlowLayout *layout = [[MSSAutoresizeLabelFlowLayout alloc]init];
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layout.delegate = self;
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layout.dataSource = self;
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self.collection = [[UICollectionView alloc]initWithFrame:self.bounds collectionViewLayout:layout];
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self.collection.backgroundColor = [MSSAutoresizeLabelFlowConfig shareConfig].backgroundColor;
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self.collection.allowsMultipleSelection = YES;
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self.collection.delegate = self;
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self.collection.dataSource = self;
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[self.collection registerClass:[MSSAutoresizeLabelFlowCell class] forCellWithReuseIdentifier:cellId];
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[self addSubview:self.collection];
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// [self.collection reloadData];
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// [self.collection layoutIfNeeded];
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// self.collection.backgroundColor = [UIColor orangeColor];
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// CGFloat height = self.collection.contentSize.height;
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// NSLog(@"===========%f",height);
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// self.collection.frame = CGRectMake(0, 0, self.bounds.size.width, height);
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}
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- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
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return 1;
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}
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
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return self.data.count;
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}
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- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
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MSSAutoresizeLabelFlowCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellId forIndexPath:indexPath];
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[cell configCellWithTitle:self.data[indexPath.item]];
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return cell;
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}
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- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
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if (self.handler) {
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NSUInteger index = indexPath.item;
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NSString *title = self.data[index];
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self.handler(index,title);
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}
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}
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- (NSString *)titleForLabelAtIndexPath:(NSIndexPath *)indexPath {
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return self.data[indexPath.item];
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}
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- (void)layoutFinishWithNumberOfline:(NSInteger)number {
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// static NSInteger numberCount;
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// if (numberCount == number) {
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// return;
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// }
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// numberCount = number;
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// MSSAutoresizeLabelFlowConfig *config = [MSSAutoresizeLabelFlowConfig shareConfig];
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// CGFloat h = config.contentInsets.top+config.contentInsets.bottom+config.itemHeight*number+config.lineSpace*(number-1);
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// self.frame = CGRectMake(self.frame.origin.x, self.frame.origin.y, self.frame.size.width, h);
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// [UIView animateWithDuration:0.2 animations:^{
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// self.collection.frame = self.bounds;
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// }];
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}
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- (void)insertLabelWithTitle:(NSString *)title atIndex:(NSUInteger)index animated:(BOOL)animated {
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NSIndexPath *indexPath = [NSIndexPath indexPathForItem:index inSection:0];
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[self.data insertObject:title atIndex:index];
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[self performBatchUpdatesWithAction:UICollectionUpdateActionInsert indexPaths:@[indexPath] animated:animated];
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}
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- (void)insertLabelsWithTitles:(NSArray *)titles atIndexes:(NSIndexSet *)indexes animated:(BOOL)animated {
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NSArray *indexPaths = [self indexPathsWithIndexes:indexes];
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[self.data insertObjects:titles atIndexes:indexes];
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[self performBatchUpdatesWithAction:UICollectionUpdateActionInsert indexPaths:indexPaths animated:animated];
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}
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- (void)deleteLabelAtIndex:(NSUInteger)index animated:(BOOL)animated {
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[self deleteLabelsAtIndexes:[NSIndexSet indexSetWithIndex:index] animated:animated];
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}
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- (void)deleteLabelsAtIndexes:(NSIndexSet *)indexes animated:(BOOL)animated {
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NSArray *indexPaths = [self indexPathsWithIndexes:indexes];
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[self.data removeObjectsAtIndexes:indexes];
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[self performBatchUpdatesWithAction:UICollectionUpdateActionDelete indexPaths:indexPaths animated:animated];
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}
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- (void)reloadAllWithTitles:(NSArray *)titles {
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self.data = [titles mutableCopy];
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[self.collection reloadData];
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}
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- (void)performBatchUpdatesWithAction:(UICollectionUpdateAction)action indexPaths:(NSArray *)indexPaths animated:(BOOL)animated {
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if (!animated) {
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[UIView setAnimationsEnabled:NO];
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}
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[self.collection performBatchUpdates:^{
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switch (action) {
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case UICollectionUpdateActionInsert:
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[self.collection insertItemsAtIndexPaths:indexPaths];
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break;
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case UICollectionUpdateActionDelete:
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[self.collection deleteItemsAtIndexPaths:indexPaths];
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default:
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break;
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}
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} completion:^(BOOL finished) {
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if (!animated) {
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[UIView setAnimationsEnabled:YES];
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}
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}];
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}
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- (NSArray *)indexPathsWithIndexes:(NSIndexSet *)set {
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NSMutableArray *indexPaths = [NSMutableArray arrayWithCapacity:set.count];
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[set enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
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NSIndexPath *indexPath = [NSIndexPath indexPathForItem:idx inSection:0];
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[indexPaths addObject:indexPath];
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}];
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return [indexPaths copy];
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}
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@end
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