#import"ViewController.h"
#import"CollectionViewCell.h"
#definescreenSize [UIScreen mainScreen].bounds.size
@interfaceViewController()<</span>UICollectionViewDataSource,UICollectionViewDelegate,UICollectionViewDelegateFlowLayout>
@property(nonatomic,strong)UICollectionView*collectionView;
@property(nonatomic,strong)NSArray*weekdayArray;
@property(nonatomic,strong)NSDate*date;
@property(nonatomic,strong)NSDate*todayDate;
@property(nonatomic,assign)NSIntegermonthDay;
@property(nonatomic,assign)NSIntegermonth;
@property(nonatomic,assign)NSIntegeryear;
@property(nonatomic,assign)NSIntegerfirstWeekdayInThisMonth;
@property(nonatomic,assign)NSIntegertotaldaysInMonth;
@end
@implementationViewController
-(void)viewDidLoad{
[superviewDidLoad];
UICollectionViewFlowLayout*flowLayout= [[UICollectionViewFlowLayoutalloc]init];
flowLayout.itemSize=CGSizeMake(screenSize.width/7,screenSize.height/7);
flowLayout.minimumInteritemSpacing=0;
flowLayout.minimumLineSpacing=0;
flowLayout.sectionInset=UIEdgeInsetsMake(0,0,0,0);
self.collectionView=[[UICollectionViewalloc]initWithFrame:CGRectMake(0,50,screenSize.width,screenSize.height-50)collectionViewLayout:flowLayout];
[self.collectionViewregisterNib:[UINibnibWithNibName:@"CollectionViewCell"bundle:nil]forCellWithReuseIdentifier:@"cell"];
self.collectionView.delegate=self;
self.collectionView.dataSource=self;
self.collectionView.backgroundColor=[UIColorwhiteColor];
[self.viewaddSubview:self.collectionView];
self.weekdayArray=@[@"日",@"一",@"二",@"三",@"四",@"五",@"六"];
self.date=[NSDatedate];
}
#pragma日历的方法
-(void)setDate:(NSDate*)date{
self.todayDate=date;
NSDateComponents*dateComp= [[NSCalendarcurrentCalendar]components:(NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay)fromDate:date];
NSCalendar*calendar= [NSCalendarcurrentCalendar];
calendar.firstWeekday=1;//1.Sun.2.Mon. 3.Thes. 4.Wed. 5.Thur. 6.Fri. 7.Sat.
dateComp.day=1;
NSDate*firstDayOfMonthDate= [calendar dateFromComponents:dateComp];
NSUIntegerfirstWeekday= [calendar ordinalityOfUnit:NSCalendarUnitWeekdayinUnit:NSCalendarUnitWeekOfMonthforDate:firstDayOfMonthDate];
self.firstWeekdayInThisMonth=firstWeekday -1;
NSRangedaysInMonth= [calendar rangeOfUnit:NSCalendarUnitDayinUnit:NSCalendarUnitMonthforDate:date];
self.totaldaysInMonth=daysInMonth.length;
[self.collectionViewreloadData];
}
#pragmacollectionView的方法
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView*)collectionView{
return2;
}
-(NSInteger)collectionView:(UICollectionView*)collectionViewnumberOfItemsInSection:(NSInteger)section{
if(section== 0){
returnself.weekdayArray.count;
} else{
return42;
}
}
-(UICollectionViewCell*)collectionView:(UICollectionView*)collectionViewcellForItemAtIndexPath:(NSIndexPath*)indexPath{
CollectionViewCell*cell= [collectionView dequeueReusableCellWithReuseIdentifier:@"cell"forIndexPath:indexPath];
if(indexPath.section==0){
cell.textLabel.text=self.weekdayArray[indexPath.row];
} else{
if(indexPath.row<self.firstWeekdayInThisMonth){
cell.textLabel.text=@"";
[cell setUserInteractionEnabled:NO];
}elseif(indexPath.row>self.totaldaysInMonth+self.firstWeekdayInThisMonth-1){
cell.textLabel.text=@"";
[cell setUserInteractionEnabled:NO];
}else{
[cell.textLabelsetText:[NSStringstringWithFormat:@"%ld",(long)indexPath.row-self.firstWeekdayInThisMonth+1]];
}
}
returncell;
}
-(IBAction)priviousBtn:(id)sender{
NSDateComponents*dateComp= [NSDateComponentsnew];
dateComp.month=-1;
NSDate*newDate= [[NSCalendarcurrentCalendar]dateByAddingComponents:dateComptoDate:self.todayDateoptions:0];
NSLog(@"%@",newDate);
[UIViewtransitionWithView:self.viewduration:0.5options:UIViewAnimationOptionTransitionCurlUpanimations:^{
self.date=newDate;
} completion:nil];
}
-(IBAction)nextBtn:(id)sender{
NSDateComponents*dateComp= [NSDateComponentsnew];
dateComp.month=1;
NSDate*newDate= [[NSCalendarcurrentCalendar]dateByAddingComponents:dateComptoDate:self.todayDateoptions:0];
NSLog(@"%@",newDate);
[UIViewtransitionWithView:self.viewduration:0.5options:UIViewAnimationOptionTransitionCurlDownanimations:^{
self.date=newDate;
} completion:nil];
}
-(void)didReceiveMemoryWarning{
[superdidReceiveMemoryWarning];
// Dispose of anyresources that can be recreated.
}
@end
Demo下载：https://pan.baidu.com/s/1jHXVe9C
