IOS开发相册图片多选和删除的功能

照例先上效果图

本次用的第三方框架做这个，但是需要考虑的地方也比较多，怎么把拍照和相册选取结合、删除照片后添加新照片时候的相册状态等等，所有的改变都是在操作数组。还需考虑图片的压缩上传。
本次用的第三方框架为：QBImagePickerController
按照惯例，上代码，本次代码较多
第一个控制器 .h里没啥代码

#import "RRZShowEditViewController.h"#import "RRZSendShowTextCell.h"#import "RRZSendShowImageCell.h"#import "QBImagePickerController.h"#import "ShowEditItem.h"static NSString *sendShowTextCellID = @"SendShowTextCellID";static NSString *sendShowImageCellID = @"SendShowImageCellID";@interface RRZShowEditViewController （）<UITableViewDataSource, UITableViewDelegate, UINavigationControllerDelegate, UIImagePickerControllerDelegate, UIScrollViewDelegate,UIActionSheetDelegate,QBImagePickerControllerDelegate>@property （strong, nonatomic） UITableView *myTableView;/** model*/@property （strong, nonatomic） ShowEditItem *showEditItem;/** textView的text*/@property （strong, nonatomic） NSString *valueStr;/** 文本输入*/@property （weak, nonatomic） NumberofwordsTextView *textView;@property （strong, nonatomic） QBImagePickerController *imagePickerController;@end@implementation RRZShowEditViewController-（ShowEditItem *）showEditItem{if （！_showEditItem） {_showEditItem = [[ShowEditItem alloc]init];_showEditItem.selectedImages = @[].mutableCopy;_showEditItem.selectedAssetURLs = @[].mutableCopy;}return _showEditItem;}-（QBImagePickerController *）imagePickerController{if （！_imagePickerController） {_imagePickerController = [[QBImagePickerController alloc] init];_imagePickerController.filterType = QBImagePickerControllerFilterTypePhotos;_imagePickerController.delegate = self;_imagePickerController.allowsMultipleSelection = YES;_imagePickerController.maximumNumberOfSelection = 9;}[_imagePickerController.selectedAssetURLs removeAllObjects];[_imagePickerController.selectedAssetURLs addObjectsFromArray:self.showEditItem.selectedAssetURLs];return _imagePickerController;}-（void）viewWillAppear:（BOOL）animated{[super viewWillAppear:animated];}-（void）viewDidAppear:（BOOL）animated{[super viewDidAppear:animated];}- （void）viewDidLoad {[super viewDidLoad];self.title = @"晒一晒";[self setupTabelView];[self setupNavItem];}-（void）setupNavItem{UIBarButtonItem *rightItem = [UIBarButtonItem itemWithTitle:@"发布" highTitle:nil target:self action:@selector（sendClick） norColor:NavItemColor highColor:RGB_COLOR（200, 200, 200）];self.navigationItem.rightBarButtonItem = rightItem;}// 压缩图片- （NSData *）resetSizeOfImageData:（UIImage *）source_image maxSize:（NSInteger）maxSize{//先调整分辨率CGSize newSize = CGSizeMake（source_image.size.width, source_image.size.height）;CGFloat tempHeight = newSize.height / 1024;CGFloat tempWidth = newSize.width / 1024;if （tempWidth > 1.0 && tempWidth > tempHeight） {newSize = CGSizeMake（source_image.size.width / tempWidth, source_image.size.height / tempWidth）;}else if （tempHeight > 1.0 && tempWidth < tempHeight）{newSize = CGSizeMake（source_image.size.width / tempHeight, source_image.size.height / tempHeight）;}UIGraphicsBeginImageContext（newSize）;[source_image drawInRect:CGRectMake（0,0,newSize.width,newSize.height）];UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext（）;UIGraphicsEndImageContext（）;//调整大小NSData *imageData;if （UIImagePNGRepresentation（newImage）） {imageData = UIImagePNGRepresentation（newImage）;}else{imageData = UIImageJPEGRepresentation（newImage, 0.5）;}NSUInteger sizeOrigin = [imageData length];NSUInteger sizeOriginKB = sizeOrigin / 1024;if （sizeOriginKB > maxSize） {NSData *finallImageData = UIImageJPEGRepresentation（newImage,0.50）;return finallImageData;}return imageData;}-（void）sendClick{[self.view endEditing:YES];[HUDController showProgressLabel:@""];NSString *textStr = self.textView.text;textStr = [textStr stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];if （textStr.length > 0 || self.showEditItem.selectedImages.count > 0） {DLog（@"发表晒一晒"）;NSMutableArray *tempImages = [[NSMutableArray alloc]init];for （int i = 0; i < self.showEditItem.selectedImages.count; i++） {UIImage *tempImage = self.showEditItem.selectedImages[i];NSData *imgData = [self resetSizeOfImageData:tempImage maxSize:150];tempImage = [UIImage imageWithData:imgData];[tempImages addObject:tempImage];}[[RRZNetworkController sharedController]sendShowInfoByRemark:self.textView.text myfiles:tempImages success:^（NSDictionary *data） {NSString *code = data[@"code"];if （[code isEqualToString:@"success"]） {[HUDController hideHUDWithText:@"发表成功"];if （_sendSuccessBlock） {_sendSuccessBlock（）;}[self.navigationController popViewControllerAnimated:YES];}else{[HUDController hideHUD];NSString *message = data[@"message"];if （message.length > 30） {message = @"上传失败";}UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:nil message:message delegate:nil cancelButtonTitle:@"确认" otherButtonTitles:nil, nil];[alertView show];}} failure:^（NSDictionary *error） {[HUDController hideHUDWithText:NetworkError];}];}else{[HUDController hideHUDWithText:@"文字或图片不能为空"];}}-（void）setupTabelView{//添加myTableView_myTableView = （{UITableView *tableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];tableView.backgroundColor = [UIColor clearColor];tableView.dataSource = self;tableView.delegate = self;tableView.separatorStyle = UITableViewCellSeparatorStyleNone;[tableView registerClass:[RRZSendShowTextCell class] forCellReuseIdentifier:sendShowTextCellID];[tableView registerClass:[RRZSendShowImageCell class] forCellReuseIdentifier:sendShowImageCellID];[self.view addSubview:tableView];[tableView mas_makeConstraints:^（MASConstraintMaker *make） {make.edges.equalTo（self.view）;}];tableView;}）;}#pragma mark - UITableViewDelegate-（NSInteger）tableView:（UITableView *）tableView numberOfRowsInSection:（NSInteger）section{return 2;}-（UITableViewCell *）tableView:（UITableView *）tableView cellForRowAtIndexPath:（NSIndexPath *）indexPath{if （indexPath.row == 0） {RRZSendShowTextCell *cell = [tableView dequeueReusableCellWithIdentifier:sendShowTextCellID];self.textView = cell.numberTextView;//cell.textValueChangedBlock = ^（NSString *valueStr）{//weakSelf.valueStr = valueStr;//};return cell;}else{RRZSendShowImageCell *cell = [tableView dequeueReusableCellWithIdentifier:sendShowImageCellID];cell.item = self.showEditItem;__weak typeof（self） weakSelf = self;cell.addPicturesBlock = ^（）{[weakSelf showActionForPhoto];};cell.deleteImageBlock = ^（ShowEditItem *item）{weakSelf.showEditItem = item;[weakSelf.myTableView reloadData];};return cell;}}-（CGFloat）tableView:（UITableView *）tableView heightForRowAtIndexPath:（NSIndexPath *）indexPath{if （indexPath.row == 0） {return 200;}else{return 300;}}#pragma mark UIActionSheet M- （void）showActionForPhoto{UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照",@"从相册选取", nil];[actionSheet showInView:self.view];}#pragma mark - UIActionSheetDelegate-（void）actionSheet:（UIActionSheet *）actionSheet clickedButtonAtIndex:（NSInteger）buttonIndex{if （buttonIndex == 0） {DLog（@"拍照"）;if （！[UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]） {UIAlertView *alert= [[UIAlertView alloc] initWithTitle:nil message:@"该设备不支持拍照" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:NULL];[alert show];}else{UIImagePickerController *picker = [[UIImagePickerController alloc] init];picker.delegate = self;picker.allowsEditing = NO;//设置可编辑picker.sourceType = UIImagePickerControllerSourceTypeCamera;[self presentViewController:picker animated:YES completion:nil];//进入照相界面}}else if （buttonIndex == 1）{DLog（@"相册"）;if （！[UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]） {UIAlertView *alert= [[UIAlertView alloc] initWithTitle:nil message:@"该设备不支持从相册选取文件" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:NULL];[alert show];}else{UINavigationController *navigationController = [[BaseNavigationController alloc] initWithRootViewController:self.imagePickerController];[self presentViewController:navigationController animated:YES completion:NULL];}}}#pragma mark UIImagePickerControllerDelegate// 拍照回调- （void）imagePickerController:（UIImagePickerController *）picker didFinishPickingMediaWithInfo:（NSDictionary *）info{UIImage *pickerImage = [info objectForKey:UIImagePickerControllerOriginalImage];[self.showEditItem.selectedImages addObject:pickerImage];ALAssetsLibrary *assetsLibrary = [[ALAssetsLibrary alloc] init];[assetsLibrary writeImageToSavedPhotosAlbum:[pickerImage CGImage] orientation:（ALAssetOrientation）pickerImage.imageOrientation completionBlock:^（NSURL *assetURL, NSError *error） {[self.showEditItem.selectedAssetURLs addObject:assetURL];//[self.showEditItem addASelectedAssetURL:assetURL];[self.myTableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:1 inSection:0]] withRowAnimation:UITableViewRowAnimationFade];}];[picker dismissViewControllerAnimated:YES completion:^{}];}- （void）imagePickerControllerDidCancel:（UIImagePickerController *）picker{[picker dismissViewControllerAnimated:YES completion:nil];}#pragma mark QBImagePickerControllerDelegate//相册回调- （void）qb_imagePickerController:（QBImagePickerController *）imagePickerController didSelectAssets:（NSArray *）assets{[self.showEditItem.selectedImages removeAllObjects];NSMutableArray *selectedAssetURLs = [NSMutableArray new];[imagePickerController.selectedAssetURLs enumerateObjectsUsingBlock:^（id obj, NSUInteger idx, BOOL *stop） {[selectedAssetURLs addObject:obj];}];self.showEditItem.selectedAssetURLs = selectedAssetURLs;for （int i = 0; i < assets.count; i++） {ALAsset *asset = assets[i];UIImage *tempImg = [UIImage imageWithCGImage:asset.defaultRepresentation.fullScreenImage];[self.showEditItem.selectedImages addObject:tempImg];}@weakify（self）;dispatch_async（dispatch_get_global_queue（DISPATCH_QUEUE_PRIORITY_DEFAULT, 0）, ^{self.showEditItem.selectedAssetURLs = selectedAssetURLs;dispatch_async（dispatch_get_main_queue（）, ^{@strongify（self）;[self.myTableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:1 inSection:0]] withRowAnimation:UITableViewRowAnimationFade];}）;}）;[self dismissViewControllerAnimated:YES completion:nil];}- （void）qb_imagePickerControllerDidCancel:（QBImagePickerController *）imagePickerController{[self dismissViewControllerAnimated:YES completion:nil];}#pragma mark - scrollView // 滚动结束编辑 收起键盘- （void）scrollViewWillBeginDragging:（UIScrollView *）scrollView{if （scrollView == self.myTableView） {[self.view endEditing:YES];}}- （void）dealloc{_myTableView.delegate = nil;_myTableView.dataSource = nil;}@end

第二个控制器 .h

#import <UIKit/UIKit.h>#import "NumberofwordsTextView.h"@interface RRZSendShowTextCell : UITableViewCell@property （weak, nonatomic） NumberofwordsTextView *numberTextView;@end

第二个控制器 .m

#define kTweetContentCell_ContentFont [UIFont systemFontOfSize:16]#import "RRZSendShowTextCell.h"@interface RRZSendShowTextCell（）@end@implementation RRZSendShowTextCell- （void）awakeFromNib {[super awakeFromNib];// Initialization codeself.selectionStyle = UITableViewCellSelectionStyleNone;}- （id）initWithStyle:（UITableViewCellStyle）style reuseIdentifier:（NSString *）reuseIdentifier{self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];if （self） {NumberofwordsTextView *numberTextView = [[NumberofwordsTextView alloc] init];numberTextView.frame = CGRectMake（7, 7, SCREEN_WIDTH-7*2, 180）;numberTextView.wordsMaxNumer = 300;numberTextView.placeHolder = @"写点什么来晒一晒吧...";numberTextView.textFont = [UIFont systemFontOfSize:14];[self addSubview:numberTextView];self.numberTextView = numberTextView;}return self;}@end

第三个 .h

#import <UIKit/UIKit.h>#import "ShowEditItem.h"@interface RRZSendShowImageCell : UITableViewCell@property （copy, nonatomic） void （^addPicturesBlock）（）;@property （copy, nonatomic） void （^deleteImageBlock）（ShowEditItem *toDelete）;@property （nonatomic,strong） ShowEditItem *item;@end.m#define kShowImageCCell_Width floorf（（SCREEN_WIDTH - 15*2- 10*3）/4）#import "RRZSendShowImageCell.h"#import "RRZShowEditImageCell.h"#import "UICustomCollectionView.h"static NSString *cellID = @"RRZShowImageCCellID";@interface RRZSendShowImageCell（）<UICollectionViewDelegate,UICollectionViewDataSource>@property （strong, nonatomic） UICustomCollectionView *mediaView;@property （strong, nonatomic） NSMutableDictionary *imageViewsDict;/** <#注释#>*/@property （strong, nonatomic） NSArray *imgs;/** <#注释#>*/@property （weak, nonatomic） UIButton *deleteBtn;@end@implementation RRZSendShowImageCell-（instancetype）initWithStyle:（UITableViewCellStyle）style reuseIdentifier:（NSString *）reuseIdentifier{if （self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]） {self.height = 300;[self setupCollectionView];self.selectionStyle = UITableViewCellSelectionStyleNone;UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake（10, 0, SCREEN_WIDTH - 20, 1）];label.backgroundColor = RGB_COLOR（240, 240, 240）;[self.contentView addSubview:label];}return self;}-（void）setupCollectionView{UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc]init];layout.itemSize = CGSizeMake（kShowImageCCell_Width, kShowImageCCell_Width）;self.mediaView = [[UICustomCollectionView alloc]initWithFrame:CGRectMake（15, 10, SCREEN_WIDTH - 2 * 15, 280） collectionViewLayout:layout];self.mediaView.scrollEnabled = NO;[self.mediaView setBackgroundColor:[UIColor clearColor]];[self.mediaView registerNib:[UINib nibWithNibName:NSStringFromClass（[RRZShowEditImageCell class]） bundle:nil] forCellWithReuseIdentifier:cellID];self.mediaView.dataSource = self;self.mediaView.delegate = self;[self.contentView addSubview:self.mediaView];}-（void）setItem:（ShowEditItem *）item{_item = item;[self.mediaView reloadData];}#pragma mark - UICollectionViewDelegate-（NSInteger）collectionView:（UICollectionView *）collectionView numberOfItemsInSection:（NSInteger）section{NSInteger num = self.item.selectedImages.count;return num < 9? num+ 1: num;}-（UICollectionViewCell *）collectionView:（UICollectionView *）collectionView cellForItemAtIndexPath:（NSIndexPath *）indexPath{RRZShowEditImageCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];if （indexPath.row < self.item.selectedImages.count） {cell.img = self.item.selectedImages[indexPath.row];}else{cell.img = nil;}cell.deleteBtn.tag = indexPath.row;[cell.deleteBtn addTarget:self action:@selector（deleteBtnClick:） forControlEvents:UIControlEventTouchUpInside];self.deleteBtn = cell.deleteBtn;return cell;}-（void）collectionView:（UICollectionView *）collectionView didSelectItemAtIndexPath:（NSIndexPath *）indexPath{if （indexPath.row == self.item.selectedAssetURLs.count || indexPath.row == self.item.selectedImages.count） {if （_addPicturesBlock） {_addPicturesBlock（）;}}}-（void）deleteBtnClick:（UIButton *）btn{NSInteger index = btn.tag;[self.item.selectedImages removeObjectAtIndex:index];[self.item.selectedAssetURLs removeObjectAtIndex:index];if （_deleteImageBlock） {_deleteImageBlock（_item）;}}@end

RRZShowEditImageCell.h 就不写了，就是自定义一个UICollectionViewCell
NumberofwordsTextView 在文中也用到了，就不贴代码了
总结
以上就是从相机或相册选取多图上传的代码实现，其他的描述就不写了，希望这篇文章对大家开发IOS能有一定的帮助，如果有疑问大家可以留言交流。