关于UIScollectionView使用，字体打印，判断定位是否开启

@property (assign,nonatomic)int page;

@property (assign,nonatomic)int pageCount;

@property (strong,nonatomic) ScrollView *scrollView;

@end

@implementation MainViewController

// 构建广告滚动视图

- (void)createScrollView {

    self.scrollView = [[AdvertisingScrollViewalloc]initWithFrame:CGRectMake(0,0, SCREEN_WIDTH,175)];

   self.scrollView.contentInset =UIEdgeInsetsMake(0,0, 0, 0);

    self.scrollView.imageNameArray = [NSArrayarrayWithObjects:@"picture1.png",@"picture2.png",@"picture3.png",@"picture4.png",nil];

    self.scrollView.PageControlShowStyle =UIPageControlShowStyleCenter;

    self.scrollView.pageControl.pageIndicatorTintColor = [UIColor whiteColor];

    self.scrollView.pageControl.currentPageIndicatorTintColor = [UIColor grayColor];

    [self.viewaddSubview:self.scrollView];

}

- (id)init

{

   self = [superinit];

   if (self) {

        //[self setup];

    }

    return self;

}

//加载新数据

-(void)LoadNewMessage

{

}

//向上重新加载数据

-(void)UpReloadData

{//当页面小于总页数就加入数据 否则等于原始数据

    [self.collectionViewaddHeaderWithCallback:^{

       if (self.page <self.pageCount) {

           self.page ++;

        }else {

           self.page =self.pageCount;

        }

        [selfLoadNewMessage];

        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)),dispatch_get_main_queue(), ^{

           // 结束刷新

            [self.collectionViewheaderEndRefreshing];

        });

    }];

}

//向下重新加载数据

-(void)DownReloadData

{

    [self.collectionViewaddFooterWithCallback:^{

       if (self.page <self.pageCount) {

           self.page    ++;

        }else {

           self.page =self.pageCount;

        }

        [selfLoadNewMessage];

        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)),dispatch_get_main_queue(), ^{

           // 结束刷新

            [self.collectionViewfooterEndRefreshing];

        });

    }];

}

- (void)dealloc

{

    NSLog(@"MJCollectionViewController--dealloc---");

}

- (void)viewDidLoad {

   /* x = 0;  // 打印所有字体名

    y= 0;

    NSArray *familyNames = [UIFont familyNames];

    for( NSString *familyName in familyNames ){

        x++;

       NSLog( @"===%d=Family: %s \n",x, [familyName UTF8String] );

        NSArray *fontNames = [UIFont fontNamesForFamilyName:familyName];

        for( NSString *fontName in fontNames ){

            y++;

           // printf( "-%d---\tFont: [[%s]] \n]", y,[fontName UTF8String] );

        }

    }*/

    // MicrosoftYaHei

    [superviewDidLoad]; 

   self.page =0;

   self.pageCount =0;

    [selfcreateScrollView];

  

    selectedIdx = [NSMutableDictionarynew];

    

//判断定位是否开启

    if ([CLLocationManagerlocationServicesEnabled] &&

        ([CLLocationManagerauthorizationStatus] == kCLAuthorizationStatusAuthorized

         || [CLLocationManagerauthorizationStatus] == kCLAuthorizationStatusNotDetermined)) {

       

           NSLog(@"定位功能以及开启");

        }

    elseif ([CLLocationManagerauthorizationStatus] == kCLAuthorizationStatusDenied){

        NSLog(@"定位功能不可用，提示用户或忽略");

    }

    NavigationView *navigationView = [NavigationViewnew];

    [self.viewaddSubview:navigationView];

   int navigationHeight = navigationView.frame.size.height;

 

     self.navigationController.navigationBarHidden=YES;//隐藏导航栏

    //[UIColor colorWithRed:0/152.0f green:122/148.0f blue:255/142.0f alpha:0.5];

    //self.view.backgroundColor = [UIColor whiteColor];

    

    //首页滚动推荐图

    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayoutalloc] init];

    [flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];

   self.collectionView = [[UICollectionViewalloc]initWithFrame:CGRectMake(0, navigationHeight,self.view.frame.size.width,self.view.frame.size.height - navigationHeight -49) collectionViewLayout:flowLayout];

    flowLayout.headerReferenceSize =CGSizeMake(self.view.frame.size.width,175);

    flowLayout.minimumInteritemSpacing =0;

   //间距

    flowLayout.minimumLineSpacing =4;

    flowLayout.sectionInset =UIEdgeInsetsMake(4,4, 0, 4);

 

    self.automaticallyAdjustsScrollViewInsets =NO;//顶部不预留空白区域

    self.collectionView.delegate =self;

    self.collectionView.dataSource =self;

    

    [self.collectionViewregisterClass:[ProjectCollectionViewCellclass] forCellWithReuseIdentifier:CellIdentifier];

    [self.collectionViewsetAllowsMultipleSelection:YES];

    [self.viewaddSubview:self.collectionView];

    [self.collectionViewaddSubview:self.scrollView];

    EntityInformation *entity = [EntityInformationnew];

    aryInformation = [entityinfomationCategoryArray];

    [self.collectionViewreloadData];

  

    // 2.集成刷新控件

    [selfUpReloadData];

    [selfDownReloadData];

}

-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {

   return 1;

}

-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {

    returnaryInformation.count;

}

-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {

   int cellWidth;

   int cellHight = (self.view.frame.size.width -16)/3;

   switch (indexPath.row %3) {

       case 0: case 1:

            cellWidth = (self.view.frame.size.width - 16)/3;

           break;

       case 2:

            cellWidth = (self.view.frame.size.width - 16)/3 + 1;

           break;

           default:

           break;

    }

   return CGSizeMake(cellWidth,cellHight);

}

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {

    ProjectCollectionViewCell *cell=(ProjectCollectionViewCell *)[collectionViewdequeueReusableCellWithReuseIdentifier:CellIdentifierforIndexPath:indexPath];//@"cellEmpty"

    cell.row = indexPath.row %3;

    

    [cellsetInformationCell:aryInformation[indexPath.row]];

   return cell;

}

//选中

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {

    

    [selectedIdxsetValue:@"1"forKey:[NSStringstringWithFormat:@"%ld",(long)indexPath.row]];

    NSUserDefaults *defaults = [NSUserDefaultsstandardUserDefaults];

   BOOL switchOn =[defaults boolForKey:@"switchOn"];

   if (!switchOn) {

        InformationClassificationViewController *icvc=[InformationClassificationViewControllernew];

        [selfpresentViewController:icvc animated:YEScompletion:nil];

    }else {

        SecondViewController *svc = [SecondViewControllernew];

        [selfpresentViewController:svc animated:YEScompletion:nil];

    }

}

//取消选择

- (void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath {

    [selectedIdxremoveObjectForKey:[NSStringstringWithFormat:@"%ld", (long)indexPath.row]];

}

-(BOOL)collectionView:(UICollectionView *)collectionView shouldSelectItemAtIndexPath:(NSIndexPath *)indexPath {

    return YES;

}

- (BOOL)collectionView:(UICollectionView *)collectionView shouldHighlightItemAtIndexPath:(NSIndexPath *)indexPath

{

    return YES;

}

- (void)collectionView:(UICollectionView *)collectionView didHighlightItemAtIndexPath:(NSIndexPath *)indexPath {

    

}

- (void)collectionView:(UICollectionView *)collectionView didUnhighlightItemAtIndexPath:(NSIndexPath *)indexPath {

    

}