在我的主机应用程序中,我正在通过以下网址成功保存解压缩后下载自定义表情符号图像文件夹。
NSURL* shareContainerURL = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:@"group.company.app.PushServiceExtn"];
当用户点击emojis图标时,没有任何问题,所有自定义表情符号都会通过shareContainerURL显示在网格中代替键盘。
我已经创建了PushNotification服务扩展,我需要通过在推送到来时从有效负载中获取表情符号名称来显示自定义表情符号图像。使用下面的代码。
- (void)didReceiveNotificationRequest:(UNNotificationRequest *)request withContentHandler:(void (^)(UNNotificationContent * _Nonnull))contentHandler {
self.contentHandler = contentHandler;
self.bestAttemptContent = [request.content mutableCopy];
NSDictionary* mediaAttachment = [self.bestAttemptContent.userInfo objectForKey:@"media-attachment"];
NSString* attachType = [mediaAttachment objectForKey:@"attachType"];
if ([attachType isEqualToString:@"emoji"]) {
NSString* strEmojiURL = [mediaAttachment objectForKey:@"url"];
self.bestAttemptContent.title = strEmojiURL;
NSString* emojiName = [[strEmojiURL stringByRemovingPercentEncoding] lastPathComponent];
NSString* strUnpresseedEmojiPath = [self getFullPath:@"emoji/Pressed"];
NSString* strImagePath = [NSString stringWithFormat:@"%@/%@ Pressed.png",strUnpresseedEmojiPath, emojiName];
NSURL* fileURL = [NSURL fileURLWithPath:strImagePath];
NSData *imageData = [NSData dataWithContentsOfURL:fileURL];
UIImage *image = [UIImage imageWithData:imageData];
if (image) {
NSError* error;
// CGRect rect = CGRectMake(0,0,50,50);
// @{UNNotificationAttachmentOptionsThumbnailClippingRectKey:(__bridge NSDictionary*)CGRectCreateDictionaryRepresentation(rect)} option dict;
UNNotificationAttachment * attachement = [UNNotificationAttachment attachmentWithIdentifier:strImagePath.lastPathComponent URL:fileURL options:nil error:&error];
if (error == nil) {
self.bestAttemptContent.attachments = @[attachement];
}
}
}
self.contentHandler(self.bestAttemptContent);
}
- (NSString *)getFullPath:(NSString *)file {
NSURL* shareContainerURL = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:@"group.company.app.PushServiceExtn"];
return [shareContainerURL.path stringByAppendingPathComponent: file];
}
我总是得到有效的网址,但第二次我得到的图片为零,但每次拍摄的图片都是第一次。无法找到根本原因。任何帮助都会受到赞赏。
以下是每张图片第二次出现的错误。
2016-10-27 17:34:59.081026 pushNotificationServiceExtension[651:34632] Attachement Error = Error Domain=UNErrorDomain Code=100 "Invalid attachment file URL" UserInfo={NSLocalizedDescription=Invalid attachment file URL}
另外,请告诉我如何查看App Group共享容器,无法找到查看其中包含的文件的方法。
*更新= *文件在推送通知中显示后被删除。
答案 0 :(得分:3)
来自apple“ UNNotificationAttachment 一旦验证,附件就会移动到附件数据存储中,以便相应的进程可以访问它们。应用程序包内的附件被复制而不是被移动。”
所以我将我的表情符号图像复制到重复的URL并将其分配给UNNotificationAttachment。
if (imageFileURL) {
NSURL* duplicateImageURL = [self getFullPath:@"EmojiAttachment"];
if (![fileManager fileExistsAtPath:duplicateImageURL.path]) {
[fileManager createDirectoryAtPath:duplicateImageURL.path withIntermediateDirectories:NO attributes:nil error:&error];
}
emojiName = [NSString stringWithFormat:@"%@ Unpressed.png", emojiName];
duplicateImageURL = [duplicateImageURL URLByAppendingPathComponent:emojiName];
[[NSFileManager defaultManager]copyItemAtURL:imageFileURL toURL:duplicateImageURL error:&error];
UNNotificationAttachment * attachement = [UNNotificationAttachment attachmentWithIdentifier:emojiName URL:[duplicateImageURL filePathURL] options:nil error:&error];
if (error == nil) {
self.bestAttemptContent.attachments = @[attachement];
}
else{
NSLog(@"Attachement Error = %@",error);
}
}