如何在ios中选择多选图像

Posted 2023-05-07

【中文标题】如何在ios中选择多选图像

【英文标题】：How to select Multiselection images in ios

【发布时间】：2014-02-10 06:44:54

【问题描述】：

我正在为 iPhone 制作一个应用程序，并希望让用户能够从他们的照片库中多选图像。我已经有一个工作代码供用户一次选择四个图像。但我不能一次选择 2 或 3 个图像。我想一次选择 2 或 3 个图像。我正在尝试以下代码。请帮助我任何人。

- (id)initImagePicker
    
    ELCAlbumPickerController *albumPicker = [[ELCAlbumPickerController alloc] initWithStyle:UITableViewStylePlain];    
    self = [super initWithRootViewController:albumPicker]; 
    if (self) 
              
        self.maximumImagesCount = 4; 
        [albumPicker setParent:self];
         
    else if (self)   
              
        self.minimumImageCount=1;        
        [albumPicker setParent:self];  
          
    return self;


- (id)initWithRootViewController:(UIViewController *)rootViewController
  
    self = [super initWithRootViewController:rootViewController]; 
    if (self) 
        self.maximumImagesCount = 4;        
    else if (self)
        self.minimumImageCount=1;   
    return self;


-(void)choosePhotoFromExistingImages

    ELCImagePickerController *elcPicker = [[ELCImagePickerController alloc] initImagePicker];  
    elcPicker.maximumImagesCount = 4;
    elcPicker.returnsOriginalImage = NO; //Only return the fullScreenImage, not the fullResolutionImage
    elcPicker.imagePickerDelegate = self;
    [self presentViewController:elcPicker animated:YES completion:nil];

【问题讨论】：

你试过self.maximumImagesCount = 3;尝试在 maximumImagesCount 中将 4 替换为 3

试试下面的链接：***.com/questions/13093143/…

【参考方案1】：

你应该试试MWPhotoBrowser Control by Michael Waterfall 他提供了单张和多张照片选择

适用于 ios 5.1.1+。 所有字符串都是可本地化的，因此可以在支持多种语言的应用中使用。

【参考方案2】：

在我的一个项目中，我在没有 ELCImagePickerController 的情况下完成了这件事。并且也成功地处理了该代码。在那个项目中，我在图像选择器控制器的导航栏上添加了一个完成按钮。每当您选择一个图像时，您可以在调用的方法中抓取该图像

-(void)imagePickerController:(UIImagePickerController *)pickerdidFinishPickingMediaWithInfo:(NSDictionary *)info

当您完成选择图像时，您按下完成按钮。在该方法中关闭视图控制器。

使用此过程，您可以选择和获取尽可能多的图像。

我的应用程序运行成功。

干杯....!!!!!!!

【讨论】：

感谢您的回复。请给我任何想法或示例代码。我不知道如何使用 UIImagePickercontroller 选择多个图像

【参考方案3】：

在uiimagepickercontroller的导航栏添加完成按钮

- (void)navigationController:(UINavigationController *)navigationController
  willShowViewController:(UIViewController *)viewController
                animated:(BOOL)animated
    
     if (!doneButton) 
    
        doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done"
                                                  style:UIBarButtonItemStyleDone
                                                 target:self   action:@selector(saveImagesDone:)];
    

viewController.navigationItem.rightBarButtonItem = doneButton;

首先使用 UIImagePickerController 显示图像选择器

抓住你的图片

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


    NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
    if ([mediaType isEqualToString:@"public.image"] 
    
        UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];


        // Get the data for the image
        NSData* imageData = UIImageJPEGRepresentation(image, 1.0);

        NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString* documentsDirectory = [paths objectAtIndex:0];

        // Now we get the full path to the file
        NSString* fullPathToFile2 = [self createName:documentsDirectory]; 
        // and then we write it out
        [imageData writeToFile:fullPathToFile2 atomically:NO];

else

    // Show Alert

关闭图像选择器视图控制器

-(IBAction)saveImagesDone:(id)sender

    [self dismissViewControllerAnimated:YES completion:nil];
    [self loadimages]; // Load your Images
 

每次点击图片时，

 -(void)imagePickerController:(UIImagePickerController *)pickerdidFinishPickingMediaWithInfo:(NSDictionary *)

info 此方法将为您抓取图像。

别忘了点赞……干杯……！！！！！

【参考方案4】：

你需要实现这些方法

- (void)elcImagePickerController:(ELCImagePickerController *)picker didFinishPickingMediaWithInfo:(NSArray *)info;

它将返回您选择的图像数组。（控制器发回一个结构相似的字典数组）

- (void)elcImagePickerControllerDidCancel:(ELCImagePickerController *)picker;

【参考方案5】：

试试这个：

-(id)initImagePicker

ELCAlbumPickerController *albumPicker = [[ELCAlbumPickerController alloc] initWithStyle:UITableViewStylePlain];

self = [super initWithRootViewController:albumPicker];
if (self) 
    self.maximumImagesCount = 4;
    self.returnsImage = YES;
    self.returnsOriginalImage = YES;
    [albumPicker setParent:self];
    self.mediaTypes = @[(NSString *)kUTTypeImage, (NSString *)kUTTypeMovie];

return self;

-(id)initWithRootViewController:(UIViewController *)rootViewController

self = [super initWithRootViewController:rootViewController];
if (self) 
    self.maximumImagesCount = 4;
    self.returnsImage = YES;

return self;

-(void)选择PhotoFromExistingImages

ELCImagePickerController *elcPicker = [[ELCImagePickerController alloc] initImagePicker];  
elcPicker.maximumImagesCount = 4;
elcPicker.returnsOriginalImage = NO; //Only return the fullScreenImage, not the fullResolutionImage
elcPicker.imagePickerDelegate = self;
[self presentViewController:elcPicker animated:YES completion:nil];