iOS开发之tableView点击下拉扩展与内嵌collectionView上传图片效果
更新时间:2016年04月13日 11:41:57 作者:Chason.cheng
这篇文章主要介绍了iOS开发之tableView点击下拉扩展与内嵌collectionView上传图片效果的相关资料,需要的朋友可以参考下
废话不多说了,直奔主题。
//需要的效果
1.设置window的根视图控制器为一个UITableViewController
#import "AppDelegate.h" #import "YCTableViewController.h" @interface AppDelegate () @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; self.window.backgroundColor = [UIColor whiteColor]; self.window.rootViewController = [[UINavigationController alloc] initWithRootViewController:[[YCTableViewController alloc] init]]; [self.window makeKeyAndVisible]; return YES; }
2.UITableViewController
// Copyright © 2016年 Chason. All rights reserved. // #import <UIKit/UIKit.h> #import "DepositFeeHeader.h" #import "DepositFeeWithApplyTableViewCell.h" #import "AppModel.h" #import "MyCollectionViewCell.h" #import "SectionHeaderViewCollectionReusableView.h" @interface YCTableViewController : UITableViewController<UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout, UIImagePickerControllerDelegate, UIActionSheetDelegate, UINavigationControllerDelegate> @property (nonatomic, strong) NSMutableArray *dataArray; @property (nonatomic, strong) NSMutableArray *ownHobby;//上传图片数组1 @property (nonatomic, strong) NSMutableArray *imageArray;//上传图片数组2 @property (nonatomic, strong) UICollectionView *collection; @property (nonatomic, strong) UIActionSheet *actionSheet; @property (nonatomic, strong) AppModel *model; @property (nonatomic, assign) NSInteger reUpdate; @property (nonatomic, strong) NSString *imageString; @property (nonatomic, assign) NSInteger number; @end // Copyright © 2016年 Chason. All rights reserved. // #import "YCTableViewController.h" //手机屏幕的宽和高 #define kScreenWidth [UIScreen mainScreen].bounds.size.width #define KScreenHeight [UIScreen mainScreen].bounds.size.height @interface YCTableViewController () @end @implementation YCTableViewController - (void)viewDidLoad { [super viewDidLoad]; _dataArray = [[NSMutableArray alloc] initWithCapacity:1]; for (int i = 0; i < 3; i++) { AppModel *model = [[AppModel alloc] init]; [_dataArray addObject:model]; } _ownHobby = [NSMutableArray array]; _reUpdate = 10000;//赋初值 } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { AppModel *model = _dataArray[section]; if ([model Is_Open]) { return 1; }else { return 0; } } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { [_ownHobby removeAllObjects]; for (int i = 0; i < _dataArray.count; i++) { _imageArray= [NSMutableArray array]; [_ownHobby addObject:_imageArray]; } return _dataArray.count; } - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section { AppModel *model = _dataArray[section]; if (model.Is_Open == YES || section == _dataArray.count - 1) { return 0.01; }else { return 10; } } -(UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section { UIView *backView = [[UIView alloc] init]; backView.backgroundColor = [UIColor whiteColor]; return backView; } - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { return 40; } - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return 200; } - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { DepositFeeHeader *depositHeader = [tableView dequeueReusableHeaderFooterViewWithIdentifier:@"deposit"]; if (depositHeader == nil) { depositHeader = [[DepositFeeHeader alloc] initWithReuseIdentifier:@"deposit"]; } depositHeader.tag = 1000 + section; [depositHeader.tap addTarget:self action:@selector(showDetail:)]; CGFloat rota; AppModel *model = _dataArray[section]; if ([model Is_Open] == NO) { rota=0; } else{ rota=M_PI_2; } [UIView animateWithDuration:0.1 animations:^{ depositHeader.listImage.transform = CGAffineTransformMakeRotation(rota); }]; return depositHeader; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { if (indexPath.section != _reUpdate) { AppModel *model = _dataArray[indexPath.section]; DepositFeeWithApplyTableViewCell *cell = [[DepositFeeWithApplyTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"applyCell"]; UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init]; flowLayout.minimumInteritemSpacing = 5; flowLayout.minimumLineSpacing = 5; flowLayout.sectionInset = UIEdgeInsetsMake(0 , 5 , 0 , 10 ); flowLayout.itemSize = CGSizeMake(40 , 40); _collection = [[UICollectionView alloc]initWithFrame:CGRectMake(10, 10, cell.backView.frame.size.width - 20, 90) collectionViewLayout:flowLayout]; [_collection registerClass:[SectionHeaderViewCollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"head"]; _collection.tag = indexPath.section; _collection.bounces = NO; _collection.delegate = self; _collection.dataSource = self; _collection.backgroundColor = [UIColor whiteColor]; [_collection registerClass:[MyCollectionViewCell class] forCellWithReuseIdentifier:@"identifier"]; [cell.backView addSubview:_collection]; [cell.shouldBtn addTarget:self action:@selector(upImage:) forControlEvents:UIControlEventTouchUpInside]; cell.shouldBtn.tag = indexPath.row + 2000; cell.selectionStyle = UITableViewCellSelectionStyleNone; return cell; }else { return nil; } } //对照片进行处理 - (void)upImage:(UIButton *)btn { } -(void)textfiledShow { if ([_ownHobby[_number] count] == 9) { UIAlertController *alert1 = [UIAlertController alertControllerWithTitle:@"上传照片不能超过9张, 点击图片可以删除" message:@"" preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *action = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { }]; [alert1 addAction:action]; [self.navigationController presentViewController:alert1 animated:YES completion:nil]; } else { [self callActionSheet]; } } //弹框提示相片来源 - (void)callActionSheet { if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择照片" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照", @"从相册选择", nil]; }else { self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择照片" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"从相册选择", nil]; } [self.actionSheet showInView:self.tableView]; } - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex { NSUInteger sourceType = UIImagePickerControllerSourceTypePhotoLibrary; //pand是否支持相机 if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { switch (buttonIndex) { case 0: sourceType = UIImagePickerControllerSourceTypeCamera; break; case 1: sourceType = UIImagePickerControllerSourceTypePhotoLibrary; break; default: return; } }else { if (buttonIndex == 1) { return; }else { sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; } } UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; imagePicker.delegate = self; imagePicker.allowsEditing = YES; imagePicker.sourceType = sourceType; [self.navigationController presentViewController:imagePicker animated:YES completion:^{ }]; } -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info { [picker dismissViewControllerAnimated:YES completion:^{ }]; [_ownHobby[_number] addObject:[info objectForKey:UIImagePickerControllerOriginalImage]]; [_collection reloadData]; }
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { _number = collectionView.tag; if ([_ownHobby[_number] count] == indexPath.row) { MyCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"identifier" forIndexPath:indexPath]; UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(textfiledShow)]; [cell.imageView addGestureRecognizer:tap]; cell.imageView.userInteractionEnabled = YES; cell.cellStyle = cellStyleAdd; cell.layer.masksToBounds = NO; cell.layer.borderWidth = 0; cell.layer.cornerRadius = 0; [cell layoutSubviews]; return cell; } else { MyCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"identifier" forIndexPath:indexPath]; cell.photo.image = _ownHobby[_number][indexPath.row]; cell.cellStyle = 1; [cell layoutSubviews]; [cell.imageView removeFromSuperview]; return cell; } } -(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView { return 1; } -(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { return [_ownHobby[_number] count] + 1; } #pragma mark 头视图size -(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section { CGSize size = {0.01, 0.01}; return size; } #pragma mark 每个Item大小 -(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath { return CGSizeMake(40, 40); } -(CGFloat)lengthWithString:(NSString *)string { return [string length]; } -(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath { if ([_ownHobby[_number] count]) { [_ownHobby[_number] removeObjectAtIndex:indexPath.row]; [_collection reloadData]; } } - (void)showDetail:(UITapGestureRecognizer *)tap { AppModel *model = _dataArray[tap.view.tag - 1000]; if ([model Is_Open]) { model.Is_Open = NO; }else { model.Is_Open = YES; } [self.tableView reloadSections:[NSIndexSet indexSetWithIndex:tap.view.tag - 1000] withRowAnimation:UITableViewRowAnimationNone]; } @end
3.自定义tableview的header和cell
//header // Copyright © 2016年 Chason. All rights reserved. // #import <UIKit/UIKit.h> @interface DepositFeeHeader : UITableViewHeaderFooterView @property (nonatomic, strong) UILabel *titleLabel; @property (nonatomic, strong) UIImageView *listImage;//尾按钮 @property (nonatomic, strong) UIGestureRecognizer *tap; @end // Copyright © 2016年 Chason. All rights reserved. // #import "DepositFeeHeader.h" //手机屏幕的宽和高 #define kScreenWidth [UIScreen mainScreen].bounds.size.width #define KScreenHeight [UIScreen mainScreen].bounds.size.height @implementation DepositFeeHeader - (instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier { self = [super initWithReuseIdentifier:reuseIdentifier]; if (self) { UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 40)]; backView.backgroundColor = [UIColor whiteColor]; [self addSubview:backView]; self.titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 10, kScreenWidth - 45, 20)]; self.titleLabel.text = @"车辆押金"; self.titleLabel.userInteractionEnabled = YES; self.titleLabel.textColor = [UIColor grayColor]; [backView addSubview:self.titleLabel]; self.listImage = [[UIImageView alloc] initWithFrame:CGRectMake(kScreenWidth - 25, 10, 10, 20)]; self.listImage.image = [UIImage imageNamed:@"jiantou.png"]; [backView addSubview:self.listImage]; UIImageView *headerLine = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 1)]; headerLine.image = [UIImage imageNamed:@"line"]; [backView addSubview:headerLine]; UIImageView *footerLine = [[UIImageView alloc] initWithFrame:CGRectMake(0, 39, kScreenWidth, 1)]; footerLine.image = [UIImage imageNamed:@"line"]; [backView addSubview:footerLine]; self.tap = [[UITapGestureRecognizer alloc] init]; [self addGestureRecognizer:self.tap]; } return self; } @end //cell // Copyright © 2016年 Chason. All rights reserved. // #import <UIKit/UIKit.h> @interface DepositFeeWithApplyTableViewCell : UITableViewCell @property (nonatomic, strong) UIView *backView; @property (nonatomic, strong) UIButton *cameraBtn; @property (nonatomic, strong) UIImageView *photoImg; @property (nonatomic, strong) UILabel *updatePresent; @property (nonatomic, strong) UIButton *shouldBtn; @end // Copyright © 2016年 Chason. All rights reserved. // #import "DepositFeeWithApplyTableViewCell.h" //手机屏幕的宽和高 #define kScreenWidth [UIScreen mainScreen].bounds.size.width #define KScreenHeight [UIScreen mainScreen].bounds.size.height @implementation DepositFeeWithApplyTableViewCell - (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier { self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]; if (self) { _backView = [[UIView alloc] initWithFrame:CGRectMake(20, 15, kScreenWidth - 40, 170)]; [self addSubview:_backView]; [self addDottedLineFromImageView:_backView]; self.updatePresent = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth - 40, 20)]; self.updatePresent.center = CGPointMake((kScreenWidth - 40) / 2, 110); self.updatePresent.text = @"点击左上角按钮添加照片"; self.updatePresent.textColor = [UIColor lightGrayColor]; self.updatePresent.textAlignment = NSTextAlignmentCenter; self.updatePresent.font = [UIFont systemFontOfSize:14]; [_backView addSubview:self.updatePresent]; self.shouldBtn = [UIButton buttonWithType:UIButtonTypeCustom]; self.shouldBtn.frame = CGRectMake((kScreenWidth - 40) / 2 - 45, 130, 90, 20); [self.shouldBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; [self.shouldBtn setTitle:@"立即上传" forState:UIControlStateNormal]; self.shouldBtn.layer.cornerRadius = 5; self.shouldBtn.backgroundColor = [UIColor colorWithRed:18/255.0 green:129/255.0 blue:201/255.0 alpha:1]; [_backView addSubview:self.shouldBtn]; } return self; } //添加虚线框 - (void)addDottedLineFromImageView:(UIView *)superView{ CGFloat w = superView.frame.size.width; CGFloat h = superView.frame.size.height; CGFloat padding = 20; //创建四个imageView作边框 for (NSInteger i = 0; i<4; i++) { UIImageView *imageView = [[UIImageView alloc] init]; imageView.backgroundColor = [UIColor clearColor]; if (i == 0) { imageView.frame = CGRectMake(0, 0, w, padding); }else if (i == 1){ imageView.frame = CGRectMake(0, 0, padding, h); }else if (i == 2){ imageView.frame = CGRectMake(0, h - padding, w, padding); }else if (i == 3){ imageView.frame = CGRectMake(w - padding, 0, padding, h); } [superView addSubview:imageView]; UIGraphicsBeginImageContext(imageView.frame.size); //开始画线 [imageView.image drawInRect:CGRectMake(0, 0, imageView.frame.size.width, imageView.frame.size.height)]; CGContextSetLineCap(UIGraphicsGetCurrentContext(), kCGLineCapRound); //设置线条终点形状 CGFloat lengths[] = {10,5}; CGContextRef line = UIGraphicsGetCurrentContext(); CGContextSetStrokeColorWithColor(line, [UIColor blackColor].CGColor); CGContextSetLineDash(line, 0, lengths, 2); //画虚线 CGContextMoveToPoint(line, 0, 0); //开始画线 if (i == 0) { CGContextAddLineToPoint(line, w, 0); }else if (i == 1){ CGContextAddLineToPoint(line, 0, w); }else if (i == 2){ CGContextMoveToPoint(line, 0, padding); CGContextAddLineToPoint(line, w, padding); }else if (i == 3){ CGContextMoveToPoint(line, padding, 0); CGContextAddLineToPoint(line, padding, w); } CGContextStrokePath(line); imageView.image = UIGraphicsGetImageFromCurrentImageContext(); } } @end
4.collectionView布局和自定义item
#import <UIKit/UIKit.h> @interface SectionHeaderViewCollectionReusableView : UICollectionReusableView @property(nonatomic, strong)UILabel *titleLabel; @end #import "SectionHeaderViewCollectionReusableView.h" @implementation SectionHeaderViewCollectionReusableView -(instancetype)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { [self createViews]; } return self; } -(void)createViews { _titleLabel = [[UILabel alloc]init]; [self addSubview:_titleLabel]; } -(void)layoutSubviews { [super layoutSubviews]; _titleLabel.frame = CGRectMake(20, 30, 375, 50); _titleLabel.font = [UIFont systemFontOfSize:20]; } @end collectionView的item #import <UIKit/UIKit.h> @interface MyCollectionViewCell : UICollectionViewCell typedef enum : NSInteger { cellStyleDefault = 0, cellStyleSelected = 1, cellStyleAdd = 2, }CollectionViewCellStyle; @property(nonatomic, assign)CollectionViewCellStyle cellStyle; @property(nonatomic, strong)UIImageView *photo; @property(nonatomic, strong)UIImageView *imageView; @property(nonatomic, strong)NSArray *array; @property(nonatomic, strong)NSMutableArray *dataArray; -(void)layoutSubviews; @end #import "MyCollectionViewCell.h" @implementation MyCollectionViewCell -(instancetype)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { _photo = [[UIImageView alloc]init]; _imageView = [[UIImageView alloc]init]; } return self; } -(void)layoutSubviews { [super layoutSubviews]; [_photo setFrame:self.bounds]; _imageView.frame = self.bounds; switch (_cellStyle) { case cellStyleDefault: self.layer.borderColor = [UIColor colorWithRed:0 green:0.68 blue:0.94 alpha:1].CGColor; self.layer.masksToBounds = YES; self.layer.borderWidth = 1.8; //self.layer.cornerRadius = 20; self.backgroundColor = [UIColor whiteColor]; [self.contentView addSubview:_photo]; break; case cellStyleSelected: self.layer.borderColor = [UIColor colorWithRed:0 green:0.68 blue:0.94 alpha:1].CGColor; self.layer.masksToBounds = YES; self.layer.borderWidth = 1.8; //self.layer.cornerRadius = 20; self.backgroundColor = [UIColor colorWithRed:0 green:0.68 blue:0.94 alpha:1]; [self.contentView addSubview:_photo]; break; case cellStyleAdd: [self.imageView setImage:[UIImage imageNamed:@"addPhoto.png"]]; self.backgroundColor = [UIColor whiteColor]; [self.contentView addSubview:_imageView]; break; default: break; } } @end
5.model
#import <Foundation/Foundation.h> #import <UIKit/UIKit.h> @interface AppModel : NSObject @property (nonatomic, assign) BOOL Is_Open; @end #import "AppModel.h" @implementation AppModel @end //设置model是为了设置一个bool类型的变量,用来记录tableview的cell是否展开,从而进行reloadSection操作,进行动画展开或收缩.
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