App_Flutter/ios/notification/NotificationService.m

//
//  NotificationService.m
//  notification
//
//  Created by Leon on 2022/6/21.
//

#import "NotificationService.h"
#import "JPushNotificationExtensionService.h"

@interface NotificationService ()

@property (nonatomic, strong) void (^contentHandler)(UNNotificationContent *contentToDeliver);
@property (nonatomic, strong) UNMutableNotificationContent *bestAttemptContent;

@end

@implementation NotificationService

- (void)didReceiveNotificationRequest:(UNNotificationRequest *)request withContentHandler:(void (^)(UNNotificationContent * _Nonnull))contentHandler {
    [JPushNotificationExtensionService jpushSetAppkey:@"7cf918ada725a9e9aecc8a17"];
    [JPushNotificationExtensionService jpushReceiveNotificationRequest:request with:^{
        NSLog(@"apns upload success");
//        contentHandler(request.content);
    }];
    self.contentHandler = contentHandler;
    self.bestAttemptContent = [request.content mutableCopy];
    
    NSString * attachmentPath = self.bestAttemptContent.userInfo[@"message_big_pic"];
    if (!attachmentPath){
        self.contentHandler(self.bestAttemptContent);
    }
    else {
        [self loadAttachmentForUrlString:attachmentPath completionHandle:^(UNNotificationAttachment *attach) {
            if (attach){
                self.bestAttemptContent.attachments = [NSArray arrayWithObject:attach];
            }
            
            self.contentHandler(self.bestAttemptContent);
        }];
    }
    //if exist
//    if (attachmentPath) {
//        //download
//        NSURL *fileURL = [NSURL URLWithString:attachmentPath];
//        [self downloadAndSave:fileURL handler:^(NSString *localPath) {
//            if (localPath) {
//                NSError *e = nil;
//                UNNotificationAttachment * attachment = [UNNotificationAttachment attachmentWithIdentifier:@"myAttachment" URL:[NSURL fileURLWithPath:localPath] options:nil error:&e];
//                if (!e){
//                    self.bestAttemptContent.attachments = @[attachment];
//                    //                            self.bestAttemptContent.title = @"ppp";//self.bestAttemptContent.title;
//                    self.contentHandler(self.bestAttemptContent);
//                }else {
//                    //                    self.bestAttemptContent.attachments = @[attachment];
//                    self.bestAttemptContent.title = @"111";//localPath;//[NSString stringWithFormat:@"%@",e];
//                    self.contentHandler(self.bestAttemptContent);
//                }
//
//            }
//            else {
//                self.bestAttemptContent.title = @"hello world2";
//                self.contentHandler(self.bestAttemptContent);
//            }
//            //          [self apnsDeliverWith:request];
//        }];
//    }else{
//        self.bestAttemptContent.title = @"hello world3";
//        self.contentHandler(self.bestAttemptContent);
//    }
}

- (void)loadAttachmentForUrlString:(NSString *)urlStr
                  completionHandle:(void(^)(UNNotificationAttachment *attach))completionHandler{
    __block UNNotificationAttachment *attachment = nil;
    NSURL *attachmentURL = [NSURL URLWithString:urlStr];
    NSString *fileExt = @".jpg";
    NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
    [[session downloadTaskWithURL:attachmentURL
                completionHandler:^(NSURL *temporaryFileLocation, NSURLResponse *response, NSError *error) {
        if (error != nil) {
            NSLog(@"%@", error.localizedDescription);
        } else {
            NSFileManager *fileManager = [NSFileManager defaultManager];
            NSURL *localURL = [NSURL fileURLWithPath:[temporaryFileLocation.path stringByAppendingString:fileExt]];
            [fileManager moveItemAtURL:temporaryFileLocation toURL:localURL error:&error];
            NSError *attachmentError = nil;
            attachment = [UNNotificationAttachment attachmentWithIdentifier:@"" URL:localURL options:nil error:&attachmentError];
            if (attachmentError) {
                NSLog(@"%@", attachmentError.localizedDescription);
            }
        }
        completionHandler(attachment);
    }] resume];
}

- (void)downloadAndSave:(NSURL *)fileURL handler:(void (^)(NSString *))handler {
    NSURLSession * session = [NSURLSession sharedSession];
    NSURLSessionDownloadTask *task = [session downloadTaskWithURL:fileURL completionHandler:^(NSURL * _Nullable location, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        NSString *localPath = nil;
        if (!error) {
            NSString * localURL = [NSString stringWithFormat:@"%@/%@pushimage.jpg", NSTemporaryDirectory(),fileURL.lastPathComponent];
            if ([[NSFileManager defaultManager] fileExistsAtPath:localURL]){
                [[NSFileManager defaultManager] removeItemAtPath:localURL error:nil];
            }
            
            NSError * _Nullable error2;
            if ([[NSFileManager defaultManager] moveItemAtPath:location.path toPath:localURL error:&error2])
            {
                localPath = localURL;
                //                self.bestAttemptContent.title = [NSString stringWithFormat:@"%@",localURL];
                //                self.contentHandler(self.bestAttemptContent);
            }
            else {
                //                if (error2){
                //                    self.bestAttemptContent.title = @"pppppddd";
                //                }
                //                else {
                //                    self.bestAttemptContent.title = @"dddd";//[NSString stringWithFormat:@"%@",@"2222333"];
                //                }
                //
                //                self.contentHandler(self.bestAttemptContent);
            }
        }
        else {
            //            self.bestAttemptContent.title = [NSString stringWithFormat:@"%@",error.description];
            //            self.contentHandler(self.bestAttemptContent);
        }
        handler(localPath);
    }];
    [task resume];
    
}

- (void)serviceExtensionTimeWillExpire {
    // Called just before the extension will be terminated by the system.
    // Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
    self.contentHandler(self.bestAttemptContent);
}

@end