发表评论页面（星级，文本，图片）二
直接上代码
//需要遵守的代理方法
UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIActionSheetDelegate,UICollectionViewDelegate,UICollectionViewDataSource
//创建属性
@property(nonatomic,strong)NSMutableArray*uploadImageArray;
@property(nonatomic,strong)NSMutableArray*tempImageArray;
@property(nonatomic,strong)UICollectionView*myCollectionView;
//下面这几行代码写在- (void)viewDidLoad {}里
//camera是相机图片的名字
- (void)viewDidLoad {
//**********************************************************************上传图片****************************************************************************//
self.uploadImageArray= [NSMutableArraynew];
[self.uploadImageArrayaddObject:[UIImageimageNamed:@"camera"]];
[self addImage];
}
//我的需求是上传三张图片 ，当然该方法也可以实现任意多张。图片的布局是一个UICollectionView
-(void)addImage
{
NSLog(@"%ld",self.uploadImageArray.count);
UICollectionViewFlowLayout*layout = [[UICollectionViewFlowLayoutalloc]init];
layout.itemSize=CGSizeMake(60,60);
layout.sectionInset=UIEdgeInsetsMake(1,1,1,1);
layout.minimumInteritemSpacing=1;
layout.minimumLineSpacing=1;
self.myCollectionView= [[UICollectionViewalloc]initWithFrame:CGRectMake(20,340,kScreenWidth-40,60)collectionViewLayout:layout];
self.myCollectionView.delegate=self;
self.myCollectionView.dataSource=self;
self.myCollectionView.backgroundColor= [UIColorclearColor];
self.myCollectionView.scrollEnabled=NO;
//注册item
[self.myCollectionViewregisterClass:[UICollectionViewCellclass]forCellWithReuseIdentifier:@"kitemCellid"];
[self.viewaddSubview:self.myCollectionView];
[self.myCollectionViewreloadData];
}
//
#pragma mark - UICollectionViewDelegate , UICollectionViewDataSource 代理方法
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return1;
}
- (NSInteger)collectionView:(UICollectionView*)collectionView numberOfItemsInSection:(NSInteger)section
{
NSLog(@"shuchu===%@",_uploadImageArray);
return_uploadImageArray.count;
}
- (UICollectionViewCell*)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(@"选择的图片%ld",self.uploadImageArray.count );
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"kitemCellid"forIndexPath:indexPath];
UIImageView*image = [[UIImageViewalloc]initWithImage:[self.uploadImageArrayobjectAtIndex:indexPath.row]];
image.frame=CGRectMake(0,0,59,59);
[_bottomViewaddSubview:image];
image.userInteractionEnabled=YES;
[celladdSubview:image];
//
UIButton*deleteBtn = [UIButtonbuttonWithType:UIButtonTypeCustom];
UIImage*images = [UIImageimageNamed:@"deleteimage"];
deleteBtn.frame=CGRectMake(image.frame.size.width- images.size.width, image.frame.origin.y, images.size.width, images.size.height);
[deleteBtnsetImage:imagesforState:UIControlStateNormal];
[deleteBtnaddTarget:selfaction:@selector(deleteAction:)forControlEvents:UIControlEventTouchUpInside];
deleteBtn.tag=3600+ indexPath.row;
[_bottomViewaddSubview:deleteBtn];
if(indexPath.row==3) {
image.userInteractionEnabled=NO;
}
if(indexPath.row==self.uploadImageArray.count-1) {
deleteBtn.hidden=YES;
}
[celladdSubview:deleteBtn];
returncell;
}
- (void)collectionView:(UICollectionView*)collectionView didSelectItemAtIndexPath:(NSIndexPath*)indexPath
{
NSLog(@"点击图片");
if(indexPath.row==self.uploadImageArray.count-1) {
if(indexPath.row>=3) {
NSLog(@"提示用户最多添加三张图片");
[selfshowAlert:@"最多上传3张图片"];
}else{
UIActionSheet*sheet;
// 判断是否支持相机
if([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
sheet= [[UIActionSheetalloc]initWithTitle:nildelegate:selfcancelButtonTitle:@"取消"destructiveButtonTitle:nilotherButtonTitles:@"拍照",@"从手机相册选择",nil];
sheet.tag=2255;
}else{
sheet = [[UIActionSheetalloc]initWithTitle:nildelegate:selfcancelButtonTitle:@"取消"destructiveButtonTitle:nilotherButtonTitles:@"从手机相册选择",nil];
sheet.tag=3255;
}
[sheetshowInView:self.tabBarController.view];
}
}else{
NSLog(@"编辑图片");
DFWEditImageViewController*vc = [[DFWEditImageViewControlleralloc]init];
vc.imageArry=self.tempImageArray;
[self.navigationControllerpushViewController:vcanimated:YES];
}
}
- (void)deleteAction:(UIButton*)sender
{
NSLog(@"%@",_uploadImageArray);
self.imgUrlArray= (NSMutableArray*)[[_imgUrlArrayreverseObjectEnumerator]allObjects];
NSLog(@"%ld", sender.tag);
if(self.imgUrlArray.count== sender.tag-3600+1) {
[self.imgUrlArrayremoveObjectAtIndex:sender.tag-3600];
[self.uploadImageArrayremoveObjectAtIndex:sender.tag-3600];
[self.tempImageArrayremoveObjectAtIndex:sender.tag-3600];
}else{
//dispatch_queue_t queue =dispatch_queue_create("deleteImage",NULL);
//dispatch_async(queue, ^{
//[self.imgUrlArray removeObjectAtIndex:sender.tag - 3600];
//});
NSLog(@"下载中");
}
NSLog(@"%@",_uploadImageArray);
[self.myCollectionViewreloadData];
}
//调用相机方法
- (void)takeCamera:(UIButton*)sender
{
UIImagePickerControllerSourceTypesourceType =UIImagePickerControllerSourceTypeCamera;
if([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
UIImagePickerController*picker = [[UIImagePickerControlleralloc]init];
picker.delegate=self;
//设置拍照后的图片可被编辑
picker.allowsEditing=YES;
picker.sourceType= sourceType;
[selfpresentViewController:pickeranimated:YEScompletion:nil];
}else
{
NSLog(@"模拟其中无法打开照相机,请在真机中使用");
}
}
//相机代理方法
- (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingImage:(UIImage*)image editingInfo:(nullableNSDictionary *)editingInfoNS_DEPRECATED_IOS(2_0,3_0)
{
if(editingInfo) {
NSLog(@"%@", editingInfo);
[self.uploadImageArrayaddObject:image];
[self.myCollectionViewreloadData];
[selfuploadImg:image];
[self.tempImageArrayaddObject:image];
self.uploadImageArray= (NSMutableArray*)[[_uploadImageArrayreverseObjectEnumerator]allObjects];
}else{
NSLog(@"取消");
}
[pickerdismissViewControllerAnimated:YEScompletion:nil];
}
//取消拍摄
- (void)imagePickerControllerDidCancel:(UIImagePickerController*)picker
{
NSLog(@"取消拍摄");
self.uploadImageArray= (NSMutableArray*)[[_uploadImageArrayreverseObjectEnumerator]allObjects];
[pickerdismissViewControllerAnimated:YEScompletion:nil];
}
//打开相册方法
- (void)openAlbum:(UIButton*)sender
{
UIImagePickerController*pickerImage = [[UIImagePickerControlleralloc]init];
if([UIImagePickerControllerisSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
pickerImage.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
pickerImage.mediaTypes= [UIImagePickerControlleravailableMediaTypesForSourceType:pickerImage.sourceType];
}
pickerImage.delegate=self;
pickerImage.allowsEditing=NO;
[selfpresentViewController:pickerImageanimated:YEScompletion:^{}];
}
//相册代理方法
- (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary*)info
{
UIImage*image = info[@"UIImagePickerControllerOriginalImage"];
if(info) {
NSLog(@"%@", info);
[self.uploadImageArrayaddObject:image];
[self.myCollectionViewreloadData];
[selfuploadImg:image];
[self.tempImageArrayaddObject:image];
self.uploadImageArray= (NSMutableArray*)[[_uploadImageArrayreverseObjectEnumerator]allObjects];
}else{
NSLog(@"取消");
}
[pickerdismissViewControllerAnimated:YEScompletion:nil];
}
