PHPickerViewController 作為iOS14之后的圖片視頻選擇器，在多選和資源處理方面要優(yōu)勝與UIImagePickerController

導(dǎo)入：

#import <PhotosUI/PhotosUI.h>
#import <UniformTypeIdentifiers/UniformTypeIdentifiers.h>

代理：

<PHPickerViewControllerDelegate>

創(chuàng)建：

PHPickerConfiguration *config = [[PHPickerConfiguration alloc] init];//配置
config.selectionLimit = 0;//選擇數(shù)量，0為多選，默認為1
config.filter = [PHPickerFilter imagesFilter]; //選擇類型，默認為所有
config.preferredAssetRepresentationMode = PHPickerConfigurationAssetRepresentationModeAutomatic;//彈出類型
PHPickerViewController *pickerVC = [[PHPickerViewController alloc] initWithConfiguration:config];
pickerVC.delegate = self;
[self presentViewController:pickerVC animated:YES completion:nil];

代理回調(diào)，資源處理：

#pragma mark - PHPickerViewControllerDelegate
-(void)picker:(PHPickerViewController *)picker didFinishPicking:(NSArray<PHPickerResult *> *)results{
    for (int i = 0; i < results.count; i++) {
        PHPickerResult *result = results[i];
        [result.itemProvider loadFileRepresentationForTypeIdentifier:UTTypeMovie.identifier completionHandler:^(NSURL * _Nullable url, NSError * _Nullable error) {
            if(!error){
               //處理視頻資源
            }
        }];
        [result.itemProvider loadFileRepresentationForTypeIdentifier:UTTypeImage.identifier completionHandler:^(NSURL * _Nullable url, NSError * _Nullable error) {
            if(!error){
               //處理圖片資源
            }
        }];
    }
    
    dispatch_async(dispatch_get_main_queue(), ^{
        [picker dismissViewControllerAnimated:YES completion:nil];
    });
}

loadFileRepresentationForTypeIdentifier處理后返回的url為臨時路徑，dismiss后會失效，如果要對資源做沙盒操作，需要在回調(diào)內(nèi)進行移動或復(fù)制