ios 自定义相册开发

最新推荐文章于 2019-01-05 19:01:00 发布

IBMBoss

最新推荐文章于 2019-01-05 19:01:00 发布

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分类专栏： ios移动开发学习文章标签： ios自定义拍照相册

本文链接：https://blog.csdn.net/IBMBoss/article/details/53836112

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本文详细介绍了如何在iOS应用中实现自定义相册功能，包括初始化UIImagePickerController、设置相机参数、实现代理方法以处理拍照后的图片，并将图片保存到数据库。此外，还展示了使用UICollectionView展示相册内容的方法，包括布局设置、数据源方法和点击事件处理。

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//初始化picker

- (UIImagePickerController *)picker

{

_picker = [[UIImagePickerController alloc]init];

_picker.sourceType = UIImagePickerControllerSourceTypeCamera;//设置image picker的来源

_picker.cameraDevice = UIImagePickerControllerCameraDeviceRear;//设置使

_picker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;

_picker.allowsEditing=YES; //允许编辑

_picker.delegate=self; //设置代理，检测操作

return _picker;

}

#pragma mark - 代理方法

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{

NSString *mediaType=[info objectForKey:UIImagePickerControllerMediaType];

if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {//当是拍照时

UIImage *image;

//如果允许编辑则获得编辑后的照片，否则获取原始照片

if (self.picker.allowsEditing) {

image = [info objectForKey:UIImagePickerControllerEditedImage];//获取编辑后的照片

}else{

image = [info objectForKey:UIImagePickerControllerOriginalImage];//获取原始照片

}

// 4 插入数据

NSString * insertSql= @"INSERT INTO A_camera(cameradata,message)VALUES(?,?)";

NSData *data = UIImagePNGRepresentation(image);

// 插入语句

bool inflag1=[dataBase executeUpdate:insertSql,data,@"空"];

if(inflag1){

NSLog(@"插入数据成功");

[self selectForms];

[self.collect reloadData];

}

// 关闭照片选择器

[self dismissViewControllerAnimated:YES completion:nil];

[self.collect reloadData];

}

//定义每个UICollectionView 的 margin

-(UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section

{

return UIEdgeInsetsMake(15, 50, 5, 20);

}

- (CGFloat) collectionView:(UICollectionView *)collectionView

layout:(UICollectionViewLayout *)collectionViewLayout

minimumInteritemSpacingForSectionAtIndex:(NSInteger)section

{

return 46.0f;

}

-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView

{

return 1;

}

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

{

return self.cameraDataArray.count;

}

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

{

UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cellID" forIndexPath:indexPath];

self.CameralookView.photoImageView.image = [UIImage imageWithData:self.cameraDataArray[indexPath.row]];

cell.backgroundView = self.CameralookView;

return cell;

}

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

{

UICollectionViewCell * cell = (UICollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];

if (cell) {

secondViewController *sec = [[secondViewController alloc]init];

sec.image = self.cameraDataArray[indexPath.row];

[self presentViewController:sec animated:YES completion:nil];

}else{NSLog(@"dd");}

}